Enter drug's generic or brand name below. Results will appear here. Note: all drug related information obtained on this page is provided by RX List.
Using the RX LIST database:
(1) Enter the drug name in the search box below and hit ENTER
(2) The rx list web site will open here with the drug search completed. Next, scroll down the page to locate the link to the drug you are searching for and then click on the link.
Low-Ogestrel®
(norgestrel and ethinyl estradiol) Tablets USP, 0.3 mg/0.03 mg
Patients should be counseled that this product does not protect against HIV infection (AIDS) and other sexually transmitted diseases.
ORAL CONTRACEPTIVE AGENTS
Low-Ogestrel® Tablets (norgestrel and ethinyl estradiol tablets USP, 0.3 mg/0.03 mg) provide an oral contraceptive regimen consisting of 21 white tablets followed by 7 peach tablets.
Each white tablet, for oral administration contains 0.3 mg of norgestrel and 0.03 mg ethinyl estradiol and the following inactive ingredients: croscarmellose sodium, lactose, magnesium stearate, microcrystalline cellulose, and povidone.
Each inactive peach tablet, for oral administration, in the 28 day regimen contains the following inactive ingredients: anhydrous lactose, FD&C Yellow No. 6 Lake, lactose monohydrate, magnesium stearate, and microcrystalline cellulose.
Norgestrel is a totally s ynthetic progestogen, insoluble in water, freely soluble in chloroform, sparingly soluble in alcohol with the chemical name (±)-13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one. Ethinyl estradiol is an estrogen, insoluble in water, soluble in alcohol, in chloroform, in ether, in vegetable oils, and in solutions of fixed alkali hydroxides with the chemical name 19-nor-17α;-pregna-1,3,5(10)-trien-20-yne-3,17-diol. Their structural formulae follow:
 |
Therapeutic class: Oral contraceptive.
Low-Ogestrel® (norgestrel and ethinyl estradiol tablets USP, 0.3 mg/0.03 mg) is indicated for the prevention of pregnancy in women who elect to use this product as a method of contraception.
Oral contraceptives are highly effective. Table I lists the typical accidental pregnancy rates for users of combination oral contraceptives and other methods of contraception.1 The efficacy of these contraceptive methods, except sterilization, depends upon the reliability with which they are used. Correct and consistent use of methods can result in lower failure rates.
TABLE I: PERCENTAGE OF WOMEN EXPERIENCING AN UNINTENDED PREGNANCY
DURING THE FIRST YEAR OF A CONTRACEPTIVE METHOD
| Method | Perfect use | Average use |
| Levonorgestrel implants | 0.05 | 0.05 |
| Male sterilization | 0.1 | 0.15 |
| Female sterilization | 0.5 | 0.5 |
| Depo-Provera® (injectable progestogen) | 0.3 | 0.3 |
| Oral contraceptive | 5 | |
| Combined | 0.1 | NA |
| Progestin only | 0.5 | NA |
| IUD | ||
| Progesterone | 1.5 | 2 |
| Copper T 380A | 0.6 | 0.8 |
| Condom (male) without spermicide | 3 | 14 |
| (female) without spermicide | 5 | 21 |
| Cervical cap | ||
| Never given birth | 9 | 20 |
| Given birth | 26 | 40 |
| Vaginal sponge | ||
| Never given birth | 9 | 20 |
| Given birth | 20 | 40 |
| Diaphragm with spermicidal cream or jelly | 6 | 20 |
| Spermicides alone (foam, creams, jellies, and vaginal suppositories) | 6 | 26 |
| Periodic abstinence (all methods) | 1-9* | 25 |
| Withdrawal | 4 | 19 |
| No contraception (planned pregnancy) | 85 | 85 |
| NA- not available *Depending on method (calender, ovulation symptothermal, post-ovulation) Adapted from Hatcher RA et al, Contraceptive Technology: 17 th Revised Edition. NY, NY: Ardent Medi, Inc., 1998 |
||
To achieve maximum contraceptive effectiveness, oral contraceptives must be taken exactly as directed and at intervals not exceeding 24 hours.
28-Day Schedule: For a DAY 1 START, count the first day of menstrual flow as Day 1 and the first tablet (white) is then taken on Day 1. For a SUNDAY START when menstrual flow begins on or before Sunday, the first tablet (white) is taken on that day. With either a DAY 1 START or SUNDAY START, 1 tablet (white) is taken each day at the same time for 21 days. Then the peach tablets are taken for 7 days, whether bleeding has stopped or not. After all 28 tablets have been taken, whether bleeding has stopped or not, the same dosage schedule is repeated beginning on the following day.
Low-Ogestrel® Tablets (norgestrel and ethinyl estradiol tablets USP, 0.3 mg/0.03 mg): Each white tablet is unscored, round in shape, with 847 debossed on one side and WATSON on the other side, and contains 0.3 mg norgestrel and 0.03 mg ethinyl estradiol. Low-Ogestrel® (norgestrel and ethinyl estradiol tablets) is packaged in cartons of three and six tablet dispensers. Each tablet dispenser contains 21 white (active) tablets and 7 peach (inert) tablets. Inert tablets are unscored, round in shape with WATSON debossed on one side and P1 on the other side.
Store at controlled room temperature 15°C to 25°C (59°F to 77°F).
Keep this and all medications out of the reach of children.
Address medical inquiries to: Watson Pharma, Inc., Medical Communications, P.O. Box 1953, Morristown, NJ 07962-1953. 800-272-5525. Manufactured for: WATSON PHARMA, INC., A subsidiary of Watson Pharmaceuticals, Inc., Corona, CA 92880 USA. Manufactured by: Patheon Inc., Mississauga, Ontario L5N 7K9 CANADA. FDA revision date: 7/28/1999
REFERENCES
1. Hatcher, R.A. Trussell, J. Stewart, F., et al.: Contraceptive Technology: Sixteenth Revised Edition, New York, NY, 1994.
33. Mishell, D.R., et al.: Reproductive Endocrinology, Philadelphia, F.A. Davis Co., 1979.
77. Dickey, R.P.: Managing Contraceptive Pill Patients, Oklahoma, Creative Informatics Inc., 1984.
An increased risk of the following serious adverse reactions has been associated with the use of oral contraceptives (see WARNINGS section):
There is evidence of an association between the following conditions and the use of oral contraceptives, although additional confirmatory studies are needed:
The following adverse reactions have been reported in patients receiving oral contraceptives and are believed to be drug-related:
The following adverse reactions have been reported in users of oral contraceptives and the association has been neither confirmed nor refuted:
Reduced efficacy and increased incidence of breakthrough bleeding and menstrual irregularities have been associated with concomitant use of rifampin. A similar association though less marked, has been suggested with barbiturates, phenylbutazone, phenytoin sodium, and possibly with griseofulvin, ampicillin, and tetracyclines.76
Certain endocrine and liver function tests and blood components may be affected by oral contraceptives:
76. Stockley, I.: Pharm J 216: 140-143, 1976.
Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with heavy smoking (15 or more cigarettes per day) and is quite marked in women over 35 years of age. Women who use oral contraceptives should be strongly advised not to smoke.
The use of oral contraceptives is associated with increased risks of several serious conditions including myocardial infarction, thromboembolism, stroke, hepatic neoplasia, and gallbladder disease, although the risk of serious morbidity or mortality is very small in healthy women without underlying risk factors. The risk of morbidity and mortality increases significantly in the presence of other underlying risk factors such as hypertension, hyperlipidemias, hypercholesterolemia, obesity and diabetes.2–5
Practitioners prescribing oral contraceptives should be familiar with the following information relating to these risks.
The information contained in this package insert is principally based on studies carried out in patients who used oral contraceptives with higher formulations of both estrogens and progestogens than those in common use today. The effect of long-term use of the oral contraceptives with lower formulations of both estrogens and progestogens remains to be determined.
Throughout this labeling, epidemiological studies reported are of two types: retrospective or case control studies and prospective or cohort studies. Case control studies provide a measure of the relative risk of a disease. Relative risk, the ratio of the incidence of a disease among oral contraceptive users to that among non-users, cannot be assessed directly from case control studies, but the odds ratio obtained is a measure of relative risk. The relative risk does not provide information on the actual clinical occurrence of a disease. Cohort studies provide not only a measure of relative risk but a measure of attributable risk, which is the difference in the incidence of disease between the oral contraceptive users and non-users. The attributable risk does provide information about the actual occurrence of a disease in the population. (Adapted from ref. 12 and 13 with the author's permission.) For further information, the reader is referred to a text on epidemiological methods.
An increased risk of myocardial infarction has been attributed to oral contraceptive use. This risk is primarily in smokers or women with other underlying risk factors for coronary artery disease such as hypertension, hypercholesterolemia, morbid obesity and diabetes.2–5, 13 The relative risk of heart attack for current oral contraceptive users has been estimated to be 2 to 6.2, 14–19 The risk is very low under the age of 30. However, there is the possibility of a risk of cardiovascular disease even in very young women who take oral contraceptives.
Smoking in combination with oral contraceptive use has been shown to contribute substantially to the incidence of myocardial infarctions in women in their mid-thirties or older, with smoking accounting for the majority of excess cases.20
Mortality rates associated with circulatory disease have been shown to increase substantially in smokers over the age of 35 and non-smokers over the age of 40 among women who use oral contraceptives (see Table II).16
TABLE II: CIRCULATORY DISEASE MORTALITY RATES PER 100,000 WOMAN YEARS BY AGE, SMOKING STATUS AND ORAL CONTRACEPTIVE USE
 |
Adapted from P.M. Layde and V. Beral, Table V16
Oral contraceptives may compound the effects of well-known risk factors such as hypertension, diabetes, hyperlipidemias, hypercholesterolemia, age and obesity.3, 13, 21 In particular, some progestogens are known to decrease HDL cholesterol and cause glucose intolerance, while estrogens may create a state of hyperinsulinism.21–25 Oral contraceptives have been shown to increase blood pressure among users (see WARNINGS). Similar effects on risk factors have been associated with an increased risk of heart disease. Oral contraceptives must be used with caution in women with cardiovascular disease risk factors.
An increased risk of thromboembolic and thrombotic disease associated with the use of oral contraceptives is well established. Case control studies have found the relative risk of users compared to non-users to be 3 for the first episode of superficial venous thrombosis, 4 to 11 for deep vein thrombosis or pulmonary embolism, and 1.5 to 6 for women with predisposing conditions for venous thromboembolic disease.12, 13, 26–31 Cohort studies have shown the relative risk to be somewhat lower, about 3 for new cases and about 4.5 for new cases requiring hospitalization.32 The risk of thromboembolic disease due to oral contraceptives is notrelated to length of use and disappears after pill use is stopped.12
A 2- to 6-fold increase in relative risk of post-operative thromboembolic complications has been reported with the use of oral contraceptives. The relative risk of venous thrombosis in women who have predisposing conditions is twice that of women without such medical conditions.83 If feasible, oral contraceptives should be discontinued at least 4 weeks prior to and for 2 weeks after elective surgery and during and following prolonged immobilization. Since the immediate postpartum period also is associated with an increased risk of thromboembolism, oral contraceptives should be started no earlier than 4 to 6 weeks after delivery in women who elect not to breast feed.33
An increase in both the relative and attributable risks of cerebrovascular events (thrombotic and hemorrhagic strokes) has been shown in users of oral contraceptives. In general, the risk is greatest among older ( > 35 years), hypertensive women who also smoke. Hypertension was found to be a risk factor for both users and non-users for both types of strokes while smoking interacted to increase the risk for hemorrhagic strokes.34
In a large study, the relative risk of thrombotic strokes has been shown to range from 3 for nor-motensive users to 14 for users with severe hypertension.35 The relative risk of hemorrhagic stroke is reported to be 1.2 for non-smokers who used oral contraceptives, 2.6 for smokers who did not use oral contraceptives, 7.6 for smokers who used oral contraceptives, 1.8 for normotensive users, and 25.7 for users with severe hypertension.35 The attributable risk also is greater in women in their mid-thirties or older and among smokers.13
A positive association has been observed between the amount of estrogen and progestogen in oral contraceptives and the risk of vascular disease.36–38 A decline in serum high density lipoproteins (HDL) has been reported with many progestational agents.22–24 A decline in serum high density lipoproteins has been associated with an increased incidence of ischemic heart disease.39 Because estrogens increase HDL cholesterol, the net effect of an oral contraceptive depends on a balance achieved between doses of estrogen and progestogen and the nature and absolute amount of progestogens used in the contraceptives. The amount of both hormones should be considered in the choice of an oral contraceptive.37
Minimizing exposure to estrogen and progestogen is in keeping with good principles of therapeutics. For any particular estrogen/progestogen combination, the dosage regimen prescribed should be one which contains the least amount of estrogen and progestogen that is compatible with a low failure rate and the needs of the individual patient. New acceptors of oral contraceptive agents should be started on preparations containing the lowest estrogen content that produces satisfactory results for the individual.
There are three studies which have shown persistence of risk of vascular disease for ever-users of oral contraceptives.17, 34, 40 In a study in the United States, the risk of developing myocardial infarction after discontinuing oral contraceptives persists for at least 9 years for women 40–49 years who had used oral contraceptives for 5 or more years, but this increased risk was not demonstrated in other age groups.17 In another study in Great Britain, the risk of developing cerebrovascular disease persisted for at least 6 years after discontinuation of oral contraceptives, although excess risk was very small.40 There is a significantly increased relative risk of subarachnoid hemorrhage after termination of use of oral contraceptives.34 However, these studies were performed with oral contraceptive formulations containing 50 μg or higher of estrogen.
One study gathered data from a variety of sources which have estimated the mortality rates associated with different methods of contraception at different ages (see Table III ).41 These estimates include the combined risk of death associated with contraceptive methods plus the risk attributable to pregnancy in the event of method failure. Each method of contraception has its specific benefits and risks. The study concluded that with the exception of oral contraceptive users 35 and older who smoke and 40 and older who do not smoke, mortality associated with all methods of birth control is low and below that associated with childbirth. The observation of a possible increase in risk of mortality with age for oral contraceptive users is based on data gathered in the 1970s—but not reported in the U.S. until 1983.16,41 However, current clinical practice involves the use of lower estrogen dose formulations combined with careful restriction of oral contraceptive use to women who do not have the various risk factors listed in this labeling.
Because of these changes in practice and, also, because of some limited new data which suggest that the risk of cardiovascular disease with the use of oral contraceptives may now be less than previously observed,78, 79 the Fertility and Maternal Health Drugs Advisory Committee was asked to review the topic in 1989. The Committee concluded that although cardiovascular disease risks may be increased with oral contraceptive use after age 40 in healthy non-smoking women (even with the newer low-dose formulations), there are greater potential health risks associated with pregnancy in older women and with the alternative surgical and medical procedures which may be necessary if such women do not have access to effective and acceptable means of contraception.
Therefore, the Committee recommended that the benefits of oral contraceptive use by healthy non-smoking women over 40 may outweigh the possible risks. Of course, older women, as all women who take oral contraceptives, should take the lowest possible dose formulation that is effective.80
TABLE III: ESTIMATED ANNUAL NUMBER OF BIRTH-RELATED OR METHOD-RELATED DEATHS ASSOCIATED WITH CONTROL OF FERTILITY PER 100,000 NONSTERILE WOMEN, BY FERTILITY CONTROL METHOD ACCORDING TO AGE
| Method of control and outcome | 15–19 | 20–24 | 25–29 | 30–34 | 35–39 | 40–44 |
| No fertility control methods* | 7 | 7.4 | 9.1 | 14.8 | 25.7 | 28.2 |
| Oral contraceptives non-smoker** | 0.3 | 0.5 | 0.9 | 1.9 | 13.8 | 31.6 |
| Oral contraceptives smoker** | 2.2 | 3.4 | 6.6 | 13.5 | 51.1 | 117.2 |
| IUD** | 0.8 | 0.8 | 1 | 1 | 1.4 | 1.4 |
| Condom* | 1.1 | 1.6 | 0.7 | 0.2 | 0.3 | 0.4 |
| Diaphragm/Spermicide* | 1.9 | 1.2 | 1.2 | 1.3 | 2.2 | 2.8 |
| Periodic abstinence* | 2.5 | 1.6 | 1.6 | 1.7 | 2.9 | 3.6 |
| * Deaths are birth-related ** Deaths are method-related |
||||||
Estimates adapted from H.W. Ory, Table 3 41
Numerous epidemiological studies have been performed on the incidence of breast, endometrial, ovarian, and cervical cancer in women using oral contraceptives. The overwhelming evidence in the literature suggests that use of oral contraceptives is not associated with an increase in the risk of developing breast cancer, regardless of the age and parity of first use or with most of the marketed brands and doses.42–44 The Cancer and Steroid Hormone (CASH) study also showed no latent effect on the risk of breast cancer for at least a decade following long-term use.43 A few studies have shown a slightly increased relative risk of developing breast cancer,44–47 although the methodology of these studies, which included differences in examination of users and non-users and differences in age at start of use, has been questioned.47–49 Some studies have reported an increased relative risk of developing breast cancer, particularly at a younger age. This increased relative risk appears to be related to duration of use.81, 82
Some studies suggest that oral contraceptive use has been associated with an increase in the risk of cervical intraepithelial neoplasia in some populations of women.50–53 However, there continues to be controversy about the extent to which such findings may be due to differences in sexual behavior and other factors.
In spite of many studies of the relationship between oral contraceptive use and breast or cervical cancers, a cause and effect relationship has not been established.
Benign hepatic adenomas are associated with oral contraceptive use although the incidence of benign tumors is rare in the United States. Indirect calculations have estimated the attributable risk to be in the range of 3.3 cases per 100,000 for users, a risk that increases after 4 or more years of use.54 Rupture of rare, benign, hepatic adenomas may cause death through intra-abdominal hemorrhage.55–56
Studies in the United States and Britain have shown an increased risk of developing hepatocellular carcinoma in long-term ( > 8 years) oral contraceptive users.57–59 However, these cancers are extremely rare in the United States and the attributable risk (the excess incidence) of liver cancers in oral contraceptive users approaches less than 1 per 1,000,000 users.
There have been clinical case reports of retinal thrombosis associated with the use of oral contraceptives. Oral contraceptives should be discontinued if there is unexplained partial or complete loss of vision; onset of proptosis or diplopia; papilledema; or retinal vascular lesions. Appropriate diagnostic and therapeutic measures should be undertaken immediately.
Extensive epidemiological studies have revealed no increased risk of birth defects in women who have used oral contraceptives prior to pregnancy.60–62 Studies also do not suggest a teratogenic effect, particularly insofar as cardiac anomalies and limb reduction defects are concerned, when taken inadvertently during early pregnancy.60, 61, 63, 64
The administration of oral contraceptives to induce withdrawal bleeding should not be used as a test for pregnancy. Oral contraceptives should not be used during pregnancy to treat threatened or habitual abortion.
It is recommended that for any patient who has missed 2 consecutive periods, pregnancy should be ruled out before continuing oral contraceptive use. If the patient has not adhered to the prescribed schedule, the possibility of pregnancy should be considered at the first missed period. Oral contraceptive use should be discontinued if pregnancy is confirmed.
Earlier studies have reported an increased lifetime relative risk of gallbladder surgery in users of oral contraceptives and estrogens.65–66 More recent studies, however, have shown that the relative risk of developing gallbladder disease among oral contraceptive users may be minimal.67 The recent findings of minimal risk may be related to the use of oral contraceptive formulations containing lower hormonal doses of estrogens and progestogens.68
Oral contraceptives have been shown to cause glucose intolerance in a significant percentage of users.25 Oral contraceptives containing greater than 75 μg of estrogen cause hyperinsulinism, while lower doses of estrogen cause less glucose intolerance.70 Progestogens increase insulin secretion and create insulin resistance, this effect varying with different progestational agents.25,71 However, in the non-diabetic woman, oral contraceptives appear to have no effect on fasting blood glucose.69 Because of these demonstrated effects, prediabetic and diabetic women should be carefully observed while taking oral contraceptives.
Some women may develop persistent hypertriglyceridemia while on the pill.72 As discussed earlier (see WARNINGS), changes in serum triglycerides and lipoprotein levels have been reported in oral contraceptive users.23
An increase in blood pressure has been reported in women taking oral contraceptives and this increase is more likely in older oral contraceptive users and with continued use.73,84 Data from the Royal College of General Practitioners and subsequent randomized trials have shown that the incidence of hypertension increases with increasing concentrations of progestogens.
Women with a history of hypertension or hypertension-related diseases or renal disease should be encouraged to use another method of contraception. If women elect to use oral contraceptives, they should be monitored closely and if significant elevation of blood pressure occurs oral contraceptives should be discontinued. For most women, elevated blood pressure will return to normal after stopping oral contraceptives and there is no difference in the occurrence of hyper-tension among ever- and never-users.73–75
The onset or exacerbation of migraine or development of headache with a new pattern which is recurrent, persistent or severe requires discontinuation of oral contraceptives and evaluation of the cause.
Breakthrough bleeding and spotting are sometimes encountered in patients on oral contraceptives, especially during the first 3 months of use. Non-hormonal causes should be considered and adequate diagnostic measures taken to rule out malignancy or pregnancy in the event of breakthrough bleeding, as in the case of any abnormal vaginal bleeding. If pathology has been excluded, time or a change to another formulation may solve the problem. In the event of amenorrhea, pregnancy should be ruled out.
Some women may encounter post-pill amenorrhea or oligomenorrhea, especially when such a condition was pre-existent.
Patients should be counseled that this product does not protect against HIV infection (AIDS) and other sexually transmitted diseases.
It is good medical practice for all women to have annual history and physical examinations, including women using oral contraceptives. The physical examination, however, may be deferred until after initiation of oral contraceptives if requested by the woman and judged appropriate by the clinician. The physical examination should include special reference to blood pressure, breasts, abdomen and pelvic organs, including cervical cytology, and relevant laboratory tests. In case of undiagnosed, persistent or recurrent abnormal vaginal bleeding, appropriate measures should be conducted to rule out malignancy. Women with a strong family history of breast cancer or who have breast nodules should be monitored with particular care.
Women who are being treated for hyperlipidemias should be followed closely if they elect to use oral contraceptives. Some progestogens may elevate LDL levels and may render the control of hyperlipidemias more difficult.
If jaundice develops in any woman receiving oral contraceptives the medication should be discontinued. Steroid hormones may be poorly metabolized in patients with impaired liver function.
Oral contraceptives may cause some degree of fluid retention. They should be prescribed with caution, and only with careful monitoring, in patients with conditions which might be aggravated by fluid retention.
Women with a history of depression should be carefully observed and the drug discontinued if depression recurs to a serious degree.
Contact lens wearers who develop visual changes or changes in lens tolerance should be assessed by an ophthalmologist.
See WARNINGS section.
Pregnancy Category X. See CONTRAINDICATIONS and WARNINGS sections.
Small amounts of oral contraceptive steroids have been identified in the milk of nursing mothers and a few adverse effects on the child have been reported, including jaundice and breast enlargement. In addition, oral contraceptives given in the postpartum period may interfere with lactation by decreasing the quantity and quality of breast milk. If possible, the nursing mother should be advised not to use oral contraceptives but to use other forms of contraception until she has completely weaned her child.
Safety and efficacy of Low-Ogestrel (norgestrel and ethinyl estradiol tablets) have been established in women of reproductive age. Safety and efficacy are expected to be the same for postpubertal adolescents under the age of 16 and for users 16 years and older. Use of this product before menarche is not indicated.
See PATIENT LABELING.
REFERENCES
2. Mann, J., et al.: Br Med J 2(5956): 241-245, 1975.
3. Knopp, R.H.: J Reprod Med 31(9): 913-921, 1986.
4. Mann, J.I., et al.: Br Med J 2: 445-447, 1976.
5. Ory, H.: JAMA 237: 2619-2622, 1977.
12. Stadel, B.: N Engl J Med 305(11): 612-618, 1981.
13. Stadel, B.: N Engl J Med 305(12): 672-677, 1981.
14. Adam, S., et al.: Br J Obstet Gynaecol 88: 838-845, 1981.
15. Mann, J., et al.: Br Med J 2(5965): 245-248, 1975.
16. Royal College of General Practitioners' Oral Contraceptive Study: Lancet 1: 541-546, 1981.
17. Slone, D., et al.: N Engl J Med 305(8): 420-424, 1981.
18. Vessey, M.P.: Br J Fam Plann 6 (Supplement): 1-12, 1980.
19. Russell-Briefel, R., et al.: Prev Med 15: 352-362, 1986.
20. Goldbaum, G., et al.: JAMA 258(10): 1339-1342, 1987.
21. LaRosa, J.C.: J Reprod Med 31 (9): 906-912, 1986. 22. Krauss, R.M., et al.: Am J Obstet Gynecol 145: 446-452, 1983.
23. Wahl, P., et al.: N Engl J Med 308(15): 862-867, 1983.
24. Wynn, V., et al.: Am J Obstet Gynecol 142(6): 766-771, 1982.
25. Wynn V., et al.: J Reprod Med 31(9): 892-897, 1986.
26. Inman, W.H., et al.: Br Med J 2(5599): 193-199, 1968.
27. Maguire, M.G., et al.: Am JEpidemiol 110(2): 188-195, 1979.
28. Petitti, D., et al.: JAMA 242(11): 1150-1154, 1979.
29. Vessey, M.P., et al.: Br Med J 2(5599): 199-205, 1968.
30. Vessey, M.P., et al.: Br Med J 2(5658): 651-657, 1969.
31. Porter, J.B., et al.: Obstet Gynecol 59(3): 299-302, 1982.
32. Vessey, M.P., et al.: J Biosoc Sci 8: 373-427, 1976.
33. Mishell, D.R., et al.: Reproductive Endocrinology, Philadelphia, F.A. Davis Co., 1979.
34. Petitti, D.B., et al.: Lancet 2: 234-236, 1978.
35. Collaborative Group for the Study of Stroke in Young Women: JAMA 231(7): 718-722, 1975.
36. Inman, W.H., et al.: Br Med J 2: 203-209, 1970.
37. Meade, T.W., et al.: Br Med J 280(6224): 1157-1161, 1980.
38. Kay, C.R.: Am J Obstet Gynecol 142(6): 762-765, 1982.
39. Gordon, T., et al.: Am J Med 62: 707-714, 1977.
40. Royal College of General Practitioners' Oral Contraception Study: J Coll GenPract 33: 75-82, 1983.
41. Ory, H.W.: Fam Plann Perspect 15(2): 57-63, 1983.
42. Paul, C., et al.: Br Med J 293: 723-725, 1986.
43. The Cancer and Steroid Hormone Study of the Centers for Disease Control: N Engl J Med 315(7): 405-411, 1986.
44. Pike, M.C., et al.: Lancet 2: 926-929, 1983.
45. Miller, D.R., et al.: Obstet Gynecol 68: 863-868, 1986.
46. Olsson, H., et al.: Lancet 2: 748-749, 1985.
47. McPherson, K., et al.: Br J Cancer 56: 653-660, 1987.
48. Huggins, G.R., et al.: Fertil Steril 47(5): 733-761, 1987.
49. McPherson, K., et al.: Br Med J 293: 709-710, 1986.
50. Ory, H., et al.: Am J Obstet Gynecol 124(6): 573-577, 1976.
51. Vessey, M.P., et al.: Lancet 2: 930, 1983.
52. Brinton, L.A., et al.: Int J Cancer 38: 339-344, 1986.
53. WHO Collaborative Study of Neoplasia and Steroid Contraceptives: Br Med J 290: 961-965, 1985.
54. Rooks, J.B., et al.: JAMA 242(7): 644-648, 1979.
55. Bein, N.N., et al.: Br J Surg 64: 433-435, 1977.
56. Klatskin, G.: Gastroenterology 73: 386-394, 1977.
57. Henderson, B.E., et al.: Br JCancer 48: 437-440, 1983.
58. Neuberger, J., et al.: Br Med J 292: 1355-1357, 1986.
59. Forman, D., et al.: Br Med J 292: 1357-1361, 1986.
60. Harlap, S., et al.: Obstet Gynecol 55(4): 447-452, 1980.
61. Savolainen, E., et al.: Am J Obstet Gynecol 140(5): 521-524, 1981.
62. Janerich, D.T., et al.: Am J Epidemiol 112(1): 73-79, 1980.
63. Ferencz, C., et al.: Teratology 21: 225-239, 1980.
64. Rothman, K.J., et al.: Am J Epidemiol 109(4): 433-439, 1979.
65. Boston Collaborative Drug Surveillance Program: Lancet 1: 1399-1404, 1973.
66. Royal College of General Practitioners: Oral contraceptives and health. New York, Pittman, 1974.
67. Rome Group for the Epidemiology and Prevention of Cholelithiasis: Am J Epidemiol 119(5): 796-805, 1984.
68. Strom, B.L., et al.: Clin Pharmacol Ther 39(3): 335-341, 1986.
69. Perlman, J.A., et al.: J Chronic Dis 38(10): 857-864, 1985.
70. Wynn, V., et al.: Lancet 1: 1045-1049, 1979.
71. Wynn, V.: Progesterone and Progestin, New York, Raven Press, 1983.
72. Wynn, V., et al.: Lancet 2: 720-723, 1966.
73. Fisch, I.R., et al.: JAMA 237(23): 2499-2503, 1977.
74. Laragh, J.H.: Am J Obstet Gynecol 126(1): 141-147, 1976.
75. Ramcharan, S., et al.: Pharmacology of Steroid Contraceptive Drugs, New York, Raven Press, 1977.
76. Stockley, I.: Pharm J 216: 140-143, 1976.
78. Porter J.B., Hunter J., Jick H., et al.: Obstet Gynecol 1985;66: 1-4.
79. Porter J.B., Hershel J., Walker A.M.: Obstet Gynecol 1987;70: 29-32.
80. Fertility and Maternal Health Drugs Advisory Committee, F.D.A., October, 1989.
81. Schlesselman J., Stadel B.V., Murray P., Lai S.: Breast cancer in relation to early use oforal contraceptives. JAMA 1988;259: 1828-1833.
82. Hennekens C.H., Speizer F.E., Lipnick R.J., Rosner B., Bain C., Belanger C., Stampfer M.J., Willett W., Peto R.: A case-control study of oral contraceptive use and breast cancer. JNCI 1984;72: 39-42.
83. Royal College of General Practitioners: Oral contraceptives, venous thrombosis, and varicose veins. J Coll Gen Pract 28: 393-399, 1978.
84. Royal College of General Practitioners' Oral Contraception Study: Effect on Hypertension and benign breast disease of progestogen component in combined oral contraceptives. Lancet 1: 624, 1977.
Serious ill effects have not been reported following acute ingestion of large doses of oral contraceptives by young children. Overdosage may cause nausea, and withdrawal bleeding may occur in females.
The following non-contraceptive health benefits related to the use of oral contraceptives are supported by epidemiological studies which largely utilized oral contraceptive formulations containing estrogen doses exceeding 0.035 mg of ethinyl estradiol or 0.05 mg of mestranol.6–11
Effects on menses:
Effects related to inhibition of ovulation:
Effects from long-term use:
Oral contraceptives should not be used in women who have the following conditions:
REFERENCES
6. The Cancer and Steroid Hormone Study of the Centers for Disease Control: JAMA 249(2): 1596-1599, 1983.
7. The Cancer and Steroid Hormone Study of the Centers for Disease Control: JAMA 257(6): 796-800, 1987.
8. Ory, H.W.: JAMA 228(1): 68-69, 1974.
9. Ory, H.W., et al.: N Engl JMed 294: 419-422, 1976.
10. Ory, H.W.: Fam Plann Perspect 14: 182-184, 1982.
11. Ory, H.W., et al.: Making Choices, New York, The Alan Guttmacher Institute, 1983.
Combination oral contraceptives act by suppression of gonadotrophins. Although the primary mechanism of this action is inhibition of ovulation, other alterations include changes in the cer-vical mucus (which increase the difficulty of sperm entry into the uterus) and the endometrium (which may reduce the likelihood of implantation).
This product (like all oral contraceptives) is intended to prevent pregnancy. It does not protect against HIV infection (AIDS) and other sexually transmitted diseases.
INTRODUCTION
Any woman who considers using oral contraceptives (“birth control pills” or “the pill”) should understand the benefits and risks of using this form of birth control. This leaflet will give you much of the information you will need to make this decision and also will help you determine if you are at risk of developing any of the serious side effects of the pill. It will tell you how to use the pill properly so that it will be as effective as possible. However, this leaflet is not a replacement for a careful discussion between you and your health care provider. You should discuss the information provided in this leaflet with him or her, both when you first start taking the pill and during your regular visits. You also should follow the advice of your health care provider with regard to regular checkups while you are on the pill.
EFFECTIVENESS OF ORAL CONTRACEPTIVES
Oral contraceptives are used to prevent pregnancy and are more effective than other non-surgical methods of birth control. When they are taken correctly, without missing any pills, the chance of becoming pregnant is less than 1% (1 pregnancy per 100 women per year of use). Typical failure rates are actually 3% per year. The chance of becoming pregnant increases with each missed pill during a menstrual cycle.
In comparison, typical failure rates for other nonsurgical methods of birth control during the first year are as follows:
PERCENTAGE OF WOMEN EXPERIENCING AN UNINTENDED PREGNANCY DURING THE FIRST YEAR OF A CONTRACEPTIVE METHOD
| Method | Perfect use | Average use |
| Levonorgestrel implants | 0.05 | 0.05 |
| Male sterilization | 0.1 | 0.15 |
| Female sterilization | 0.5 | 0.5 |
| Depo-Provera® (injectable progestogen) | 0.3 | 0.3 |
| Oral contraceptives | 5 | |
| Combined | 0.1 | NA |
| Progestin only | 0.5 | NA |
| IUD | ||
| Progesterone | 1.5 | 2 |
| Copper T 380A | 0.6 | 0.8 |
| Condom (male) without spermicide | 3 | 14 |
| (female) without spermicide | 5 | 21 |
| Cervical cap | ||
| Never given birth | 9 | 20 |
| Given birth | 26 | 40 |
| Vaginal sponge | ||
| Never given birth | 9 | 20 |
| Given birth | 20 | 40 |
| Diaphragm with spermicidal cream or jelly | 6 | 20 |
| Spermicides alone (foam, creams, jellies, and vaginal suppositories) | 6 | 26 |
| Periodic abstinence (all methods) | 1-9* | 25 |
| Withdrawal | 4 | 19 |
| No contraception (planned pregnancy) | 85 | 85 |
| NA- not available *Depending on method (calender, ovulation symptothermal, post-ovulation) Adapted from Hatcher RA et al, Contraceptive Technology: 17 th Revised Edition. NY, NY: Ardent Medi, Inc., 1998 |
||
WHO SHOULD NOT TAKE ORAL CONTRACEPTIVES
Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with heavy smoking (15 or more cigarettes per day) and is quite marked in women over 35 years of age. Women who use oral contraceptives are strongly advised not to smoke.
Some women should not use the pill. For example, you should not take the pill if you are pregnant or think you may be pregnant. You also should not use the pill if you have any of the following conditions:
Tell your health care provider if you have ever had any of these conditions. Your health care provider can recommend a safer method of birth control.
OTHER CONSIDERATIONS BEFORE TAKING ORAL CONTRACEPTIVES
Tell your health care provider if you have or have had:
Women with any of these conditions should be checked often by their health care provider if they choose to use oral contraceptives.
Also, be sure to inform your doctor or health care provider if you smoke or are on any medications.
RISKS OF TAKING ORAL CONTRACEPTIVES
1. Risk of developing blood clots
Blood clots and blockage of blood vessels are the most serious side effects of taking oral contraceptives. In particular, a clot in the legs can cause thrombophlebitis and a clot that travels to the lungs can cause a sudden blocking of the vessel carrying blood to the lungs. Rarely, clots occur in the blood vessels of the eye and may cause blindness, double vision, or impaired vision.
If you take oral contraceptives and need elective surgery, need to stay in bed for a prolonged illness or have recently delivered a baby, you may be at risk of developing blood clots. You should consult your doctor about stopping oral contraceptives three to four weeks before surgery and not taking oral contraceptives for two weeks after surgery or during bed rest. You should also not take oral contraceptives soon after delivery of a baby. It is advisable to wait for at least four weeks after delivery if you are not breast feeding. If you are breast feeding, you should wait until you have weaned your child before using the pill (see GENERAL PRECAUTIONS—While breast feeding).
2. Heart attacks and strokes
Oral contraceptives may increase the tendency to develop strokes (stoppage or rupture of blood vessels in the brain) and angina pectoris and heart attacks (blockage of blood vessels in the heart). Any of these conditions can cause death or temporary or permanent disability.
Smoking greatly increases the possibility of suffering heart attacks and strokes. Furthermore, smoking and the use of oral contraceptives greatly increase the chances of developing and dying of heart disease.
3. Gallbladder disease
Oral contraceptive users may have a greater risk than non-users of having gallbladder disease, although this risk may be related to pills containing high doses of estrogen.
4. Liver tumors
In rare cases, oral contraceptives can cause benign but dangerous liver tumors. These benign liver tumors can rupture and cause fatal internal bleeding. In addition, a possible but not definite association has been found with the pill and liver cancers in 2 studies in which a few women who developed these very rare cancers were found to have used oral contraceptives for long periods. However, liver cancers are extremely rare. The chance of developing liver cancer from using the pill is thus even rarer.
5. Cancer of the breast and reproductive organs
There is, at present, no confirmed evidence that oral contraceptives increase the risk of cancer of the reproductive organs in human studies. Several studies have found no overall increase in the risk of developing breast cancer. However, women who use oral contraceptives and have a strong family history of breast cancer or who have breast nodules or abnormal mammograms should be followed closely by their doctors. Some studies have reported an increase in the risk of developing breast cancer, particularly at a younger age. This increased risk appears to be related to duration of use.
Some studies have found an increase in the incidence of cancer of the cervix in women who use oral contraceptives. However, this finding may be related to factors other than the use of oral contraceptives.
ESTIMATED RISK OF DEATH FROM A BIRTH CONTROL METHOD OR PREGNANCY
All methods of birth control and pregnancy are associated with a risk of developing certain diseases which may lead to disability or death. An estimate of the number of deaths associated with different methods of birth control and pregnancy has been calculated and is shown in the following table:
ESTIMATED ANNUAL NUMBER OF BIRTH-RELATED OR METHOD-RELATED DEATHS ASSOCIATED WITH CONTROL OF FERTILITY PER 100,000 NON-STERILE WOMEN, BY FERTILITY CONTROL METHOD ACCORDING TO AGE
| Method of control and outcome | 15–19 | 20–24 | 25–29 | 30–34 | 35–39 | 40–44 |
| No fertility control methods* | 7 | 7.4 | 9.1 | 14.8 | 25.7 | 28.2 |
| Oral contraceptives non-smoker** | 0.3 | 0.5 | 0.9 | 1.9 | 13.8 | 31.6 |
| Oral contraceptives smoker** | 2.2 | 3.4 | 6.6 | 13.5 | 51.1 | 117.2 |
| IUD** | 0.8 | 0.8 | 1 | 1 | 1.4 | 1.4 |
| Condom* | 1.1 | 1.6 | 0.7 | 0.2 | 0.3 | 0.4 |
| Diaphragm/Spermicide* | 1.9 | 1.2 | 1.2 | 1.3 | 2.2 | 2.8 |
| Periodic abstinence* | 2.5 | 1.6 | 1.6 | 1.7 | 2.9 | 3.6 |
| * Deaths are birth-related ** Deaths are method-related |
||||||
In the above table, the risk of death from any birth control method is less than the risk of child-birth except for oral contraceptive users over the age of 35 who smoke and pill users over the age of 40 even if they do not smoke. It can be seen from the table that for women aged 15 to 39 the risk of death is highest with pregnancy (7–26 deaths per 100,000 women, depending on age). Among pill users who do not smoke the risk of death is always lower than that associated with pregnancy for any age group, although over the age of 40 the risk increases to 32 deaths per 100,000 women compared to 28 associated with pregnancy at that age. However, for pill users who smoke and are over the age of 35 the estimated number of deaths exceeds those for other methods of birth control. If a woman is over the age of 40 and smokes, her estimated risk of death is 4 times higher (117/100,000 women) than the estimated risk associated with pregnancy (28/100,000 women) in that age group.
The suggestion that women over 40 who don't smoke should not take oral contraceptives is based on information from older high-dose pills and on less selective use of pills than is practiced today. An Advisory Committee of the FDA discussed this issue in 1989 and recommended that the benefits of oral contraceptive use by healthy, non-smoking women over 40 years of age may outweigh the possible risks. However, all women, especially older women, are cautioned to use the lowest dose pill that is effective.
WARNING SIGNALS
If any of these adverse effects occur while you are taking oral contraceptives, call your doctor immediately:
SIDE EFFECTS OF ORAL CONTRACEPTIVES
1. Vaginal bleeding
Irregular vaginal bleeding or spotting may occur while you are taking the pill. Irregular bleeding may vary from slight staining between menstrual periods to breakthrough bleeding which is a flow much like a regular period. Irregular bleeding occurs most often during the first few months of oral contraceptive use but may also occur after you have been taking the pill for some time. Such bleeding may be temporary and usually does not indicate any serious problem. It is important to continue taking your pills on schedule. If the bleeding occurs in more than 1 cycle or lasts for more than a few days, talk to your doctor or health care provider.
2. Contact lenses
If you wear contact lenses and notice a change in vision or an inability to wear your lenses, contact your doctor or health care provider.
3. Fluid retention
Oral contraceptives may cause edema (fluid retention) with swelling of the fingers or ankles and may raise your blood pressure. If you experience fluid retention, contact your doctor or health care provider.
4. Melasma (Mask of Pregnancy)
A spotty darkening of the skin is possible, particularly of the face.
5. Other side effects
Other side effects may include change in appetite, headache, nervousness, depression, dizziness, loss of scalp hair, rash and vaginal infections.
If any of these side effects occur, contact your doctor or health care provider.
GENERAL PRECAUTIONS
1. Missed periods and use of oral contraceptives before or during early pregnancy
At times you may not menstruate regularly after you have completed taking a cycle of pills. If you have taken your pills regularly and miss 1 menstrual period, continue taking your pills for the next cycle but be sure to inform your health care provider before doing so. If you have not taken the pills daily as instructed and miss 1 menstrual period, or if you miss 2 consecutive menstrual periods, you may be pregnant. Check with your health care provider immediately to determine whether you are pregnant. Do not continue to take oral contraceptives until you are sure you are not pregnant, but continue to use another method of birth control.
There is no conclusive evidence that oral contraceptive use is associated with an increase in birth defects when taken inadvertently during early pregnancy. Previously, a few studies had reported that oral contraceptives might be associated with birth defects but these studies have not been confirmed. Nevertheless, oral contraceptives or any other drugs should not be used during pregnancy unless clearly necessary and prescribed by your doctor. You should check with your doctor about risks to your unborn child from any medication taken during pregnancy.
2. While breast feeding
If you are breast feeding, consult your doctor before starting oral contraceptives. Some of the drug will be passed on to the child in the milk. A few adverse effects on the child have been reported, including yellowing of the skin (jaundice) and breast enlargement. In addition, oral contraceptives may decrease the amount and quality of your milk. If possible, do not use oral contraceptives and use another method of contraception while breast feeding. You should consider starting oral contraceptives only after you have weaned your child completely.
3. Laboratory tests
If you are scheduled for any laboratory tests, tell your doctor you are taking birth control pills. Certain blood tests may be affected by birth control pills.
4. Drug interactions
Certain drugs may interact with birth control pills to make them less effective in preventing pregnancy or cause an increase in breakthrough bleeding. Such drugs include rifampin; drugs used for epilepsy such as barbiturates (for example phenobarbital) and phenytoin (Dilantin is one brand of this drug); phenylbutazone (Butazolidin is one brand of this drug) and possibly certain antibiotics. You may need to use additional contraception when you take drugs which can make oral contraceptives less effective.
5. This product (like all oral contraceptives) is intended to prevent pregnancy. It does not protect against transmission of HIV (AIDS) and other sexually transmitted diseases such as chlamydia, genital herpes, genital warts, gonorrhea, hepatitis B, and syphilis.
HOW TO TAKE THE PILL
IMPORTANT POINTS TO REMEMBER
BEFORE YOU START TAKING YOUR PILLS:
BEFORE YOU START TAKING YOUR PILLS
1. DECIDE WHAT TIME OF DAY YOU WANT TO TAKE YOUR PILL.
It is important to take it at about the same time every day.
2. LOOK AT YOUR PILL PACK:
The pill pack has 21 “active” white (with hormones) pills to take for 3 weeks, followed by 1 week of reminder peach pills (without hormones).
3. ALSO FIND:
Active Pill Color: White
Reminder Pill Color: Peach
 |
4. BE SURE YOU HAVE READY AT ALL TIMES:
ANOTHER KIND OF BIRTH CONTROL (such as condoms, foam, or sponge) to use as a back-up in case you miss pills.
AN EXTRA, FULL PILL PACK.
* For use of day labels, see WHEN TO START THE FIRST PACK OF PILLS below.
WHEN TO START THE FIRST PACK OF PILLS
You have a choice of which day to start taking your first pack of pills. Decide with your doctor or clinic which is the best day for you. Pick a time of day which will be easy to remember.
DAY 1 START:
SUNDAY START:
WHAT TO DO DURING THE MONTH
Start the next pack on the day after your last “reminder” pill. Do not wait any days between packs.
WHAT TO DO IF YOU MISS PILLS
If you MISS 1 white “active” pill:
If you MISS 2 white “active” pills in a row in WEEK 1 OR WEEK 2 of your pack:
If you MISS 2 white “active” pills in a row in THE 3rd WEEK:
If you MISS 3 OR MORE white “active” pills in a row (during the first 3 weeks):
REMINDER:
If you forget any of the 7 peach “reminder” pills in Week 4:
THROW AWAY the pills you missed.
Keep taking 1 pill each day until the pack is empty.
You do not need a back-up method.
FINALLY, IF YOU ARE STILL NOT SURE WHAT TO DO ABOUT THE PILLS YOU HAVE MISSED:
Use a BACK-UP METHOD anytime you have sex.
KEEP TAKING ONE “ACTIVE” PILL EACH DAY until you can reach your doctor or clinic.
6. Missed periods, spotting or light bleeding
At times, you may not have a period after you have completed a pack of pills. If you miss 1 period but you have taken the pills exactly as you were supposed to, continue as usual into the next cycle. If you have not taken the pills correctly, and have missed a period, you may be pregnant and you should stop taking the pill until your doctor or clinic determines whether or not you are pregnant. Until you can talk to your doctor or clinic, use an appropriate back-up birth control method. If you miss 2 consecutive periods, you should stop taking the pill until it is determined that you are not pregnant.
Even if spotting or light bleeding should occur, continue taking the pill according to the schedule. Should spotting or light bleeding persist, you should notify your doctor or clinic.
7. Stopping the pill before surgery or prolonged bed rest
If you are scheduled for surgery or you need to stay in bed for a long period of time you should tell your doctor that you are on the pill. You should stop taking the pill four weeks before your operation to avoid an increased risk of blood clots. Talk to your doctor about when you may start taking the pill again.
8. Starting the pill after pregnancy
After you have a baby it is advisable to wait 4–6 weeks before starting to take the pill. Talk to your doctor about when you may start taking the pill after pregnancy.
9. Pregnancy due to pill failure
When the pill is taken correctly, the expected pregnancy rate is approximately 1% (i.e., 1 pregnancy per 100 women per year). If pregnancy occurs while taking the pill, there is little risk to the fetus. The typical failure rate of large numbers of pill users is less than 3% when women who have missed pills are included. If you become pregnant, you should discuss your pregnancy with your doctor.
10. Pregnancy after stopping the pill
There may be some delay in becoming pregnant after you stop taking the pill, especially if you had irregular periods before you started using the pill. Your doctor may recommend that you delay becoming pregnant until you have had one or more regular periods.
There does not appear to be any increase in birth defects in newborn babies when pregnancy occurs soon after stopping the pill.
11. Overdosage
There are no reports of serious illness or side effects in young children who have swallowed a large number of pills. In adults, overdosage may cause nausea and/or bleeding in females. In case of overdosage, contact your doctor, clinic or pharmacist.
12. Other information
Your doctor or clinic will take a medical and family history and will examine you before prescribing the pill. The physical examination may be delayed to another time if you request it and the health care provider believes that it is a good medical practice to postpone it. You should be re-examined at least once a year. Be sure to inform your doctor or clinic if there is a family history of any of the conditions listed previously in this leaflet. Be sure to keep all appointments with your doctor or clinic because this is a time to determine if there are early signs of side effects from using the pill.
Do not use the pill for any condition other than the one for which it was prescribed. The pill has been prescribed specifically for you, do not give it to others who may want birth control pills.
If you want more information about birth control pills, ask your doctor or clinic. They have a more technical leaflet called PHYSICIAN LABELING which you might want to read.
NON-CONTRACEPTIVE HEALTH BENEFITS
In addition to preventing pregnancy, use of oral contraceptives may provide certain non-contraceptive health benefits:
Store at controlled room temperature 15°C to 25°C (59°F to 77°F).
Keep this and all medications out of the reach of children.
BRIEF SUMMARY PATIENT PACKAGE INSERT
This product (like all oral contraceptives) is intended to prevent pregnancy. It does not protect against HIV infection (AIDS) and other sexually transmitted diseases.
Oral contraceptives, also known as “birth control pills” or “the pill,” are taken to prevent pregnancy and, when taken correctly, have a failure rate of about 1% per year when used without missing any pills. The typical failure rate of large numbers of pill users is less than 3% per year when women who miss pills are included. For most women, oral contraceptives are also free of serious or unpleasant side effects. However, forgetting to take oral contraceptives considerably increases the chances of pregnancy.
For the majority of women, oral contraceptives can be taken safely, but there are some women who are at high risk of developing certain serious diseases that can be life-threatening or may cause temporary or permanent disability. The risks associated with taking oral contraceptives increase significantly if you:
You should not take the pill if you suspect you are pregnant or have unexplained vaginal bleeding.
Cigarette smoking increases the risk of serious cardiovascular side effects from oral contraceptive use. This risk increases with age and with heavy smoking (15 or more cigarettes per day) and is quite marked in women over 35 years of age. Women who use oral contraceptives are strongly advised not to smoke.
Most side effects of the pill are not serious. The most common such effects are nausea, vomiting, bleeding between menstrual periods, weight gain, breast tenderness, and difficulty wearing contact lenses. These side effects, especially nausea and vomiting, may subside within the first 3 months of use.
The serious side effects of the pill occur very infrequently, especially if you are in good health and are young. However, you should know that the following medical conditions have been associated with or made worse by the pill:
The symptoms associated with these serious side effects are discussed in the detailed leaflet given to you with your supply of pills. Notify your doctor or health care provider if you notice any unusual physical disturbances while taking the pill. In addition, drugs such as rifampin, as well as some anti-convulsants and some antibiotics, may decrease oral contraceptive effectiveness.
Studies to date of women taking the pill have not shown an increase in the incidence of cancer of the breast or cervix. There is, however, insufficient evidence to rule out the possibility that the pill may cause such cancers. Some studies have reported an increase in the risk of developing breast cancer, particularly at a younger age. This increased risk appears to be related to duration of use.
Taking the pill provides some important non-contraceptive health benefits. These include less painful menstruation, less menstrual blood loss and anemia, fewer pelvic infections and fewer cancers of the ovary and the lining of the uterus.
Be sure to discuss any medical condition you may have with your health care provider. Your health care provider will take a medical and family history before prescribing oral contraceptives and will examine you. The physical examination may be delayed to another time if you request it and the health care provider believes that it is a good medical practice to postpone it. You should be re-examined at least once a year while taking oral contraceptives. The detailed patient information leaflet gives you further information which you should read and discuss with your health care provider.
HOW TO TAKE THE PILL
See full text of HOW TO TAKE THE PILL which is printed in full in the DETAILED PATIENT LABELING.
Keep this and all medications out of the reach of children.
