PRECAUTIONS
General
During withdrawal from oral corticosteroids, some patients may experience symptoms
of systemically active corticosteroid withdrawal, eg, joint and/or muscular
pain, lassitude, and depression, despite maintenance or even improvement of
respiratory function (see DOSAGE AND ADMINISTRATION).
In responsive patients, PULMICORT TURBUHALER (budesonide) may permit control of asthma symptoms with less suppression of HPA-axis function than therapeutically equivalent oral doses of prednisone. Since budesonide is absorbed into the circulation and can be systemically active, the beneficial effects of PULMICORT TURBUHALER (budesonide) in minimizing HPA dysfunction may be expected only when recommended dosages are not exceeded and individual patients are titrated to the lowest effective dose. Since individual sensitivity to effects on cortisol production exists, physicians should consider this information when prescribing PULMICORT TURBUHALER (budesonide) .
Because of the possibility of systemic absorption of inhaled corticosteroids, patients treated with PULMICORT TURBUHALER (budesonide) should be observed carefully for any evidence of systemic corticosteroid effects. Particular care should be taken in observing patients postoperatively or during periods of stress for evidence of inadequate adrenal response.
It is possible that systemic corticosteroid effects such as hypercorticism, reduced bone mineral density, and adrenal suppression may appear in a small number of patients, particularly at higher doses. If such changes occur, PULMICORT TURBUHALER (budesonide) should be reduced slowly, consistent with accepted procedures for management of asthma symptoms and for tapering of systemic steroids.
Orally inhaled corticosteroids, including budesonide, may cause a reduction
in growth velocity when administered to pediatric patients. A reduction in growth
velocity may occur as a result of inadequate control of asthma or from use of
corticosteroids for treatment. The potential effects of prolonged treatment
on growth velocity should be weighed against the clinical benefits obtained
and the risks associated with alternative therapies. To minimize the systemic
effects of orally inhaled corticosteroids, including PULMICORT TURBUHALER (budesonide) , each
patient should be titrated to his/her lowest effective dose (see PRECAUTIONS,
Pediatric Use).
Although patients in clinical trials have received PULMICORT TURBUHALER (budesonide) on a continuous basis for periods of 1 to 2 years, the long-term local and systemic effects of PULMICORT TURBUHALER (budesonide) in human subjects are not completely known. In particular, the effects resulting from chronic use of PULMICORT TURBUHALER (budesonide) on developmental or immunological processes in the mouth, pharynx, trachea, and lung are unknown.
In clinical trials with PULMICORT TURBUHALER (budesonide) , localized infections with Candida
albicans occurred in the mouth and pharynx in some patients. These infections
may require treatment with appropriate antifungal therapy and/or discontinuance
of treatment with PULMICORT TURBUHALER (budesonide) .
Inhaled corticosteroids should be used with caution, if at all, in patients
with active or quiescent tuberculosis infection of the respiratory tract, untreated
systemic fungal, bacterial, viral or parasitic infections, or ocular herpes
simplex.
Rare instances of glaucoma, increased intraocular pressure, and cataracts have been reported following the inhaled administration of corticosteroids.
Information for Patients
Patients being treated with PULMICORT TURBUHALER (budesonide) should receive the following
information and instructions. This information is intended to aid the patient
in the safe and effective use of the medication. It is not a disclosure of all
possible adverse or intended effects. For proper use of PULMICORT TURBUHALER (budesonide)
and to attain maximum improvement, the patient should read and follow the accompanying
Patient's Instructions for Use carefully.
- Patients should use PULMICORT TURBUHALER (budesonide) at regular intervals as directed
since its effectiveness depends on regular use. The patient should not alter
the prescribed dosage unless advised to do so by the physician.
- Patients should be advised that PULMICORT TURBUHALER (budesonide) is not a bronchodilator
and is not intended to treat acute or life-threatening episodes of asthma.
- Patients should be advised that the effectiveness of PULMICORT TURBUHALER (budesonide)
depends on proper use of the device and inhalation-administering technique:
- 1. PULMICORT TURBUHALER (budesonide) must be in the upright position (mouthpiece
on top) during loading in order to provide the correct dose.
- 2. PULMICORT TURBUHALER (budesonide) must be primed when the unit is
used for the very first time. To prime the unit, it must be held in an
upright position and the brown grip turned fully to the right, then turned
fully to the left until it clicks. Repeat.
- 3. To load the first dose, the grip must be turned fully
to the right and fully to the left until it clicks.
- 4. After the first dose, it is not necessary to prime the
unit. However, it must be loaded in the upright position immediately prior
to use as described above.
- 5. Patients should be advised not to shake the inhaler.
- Patients should place the mouthpiece between the lips and inhale forcefully
and deeply. The powder is then delivered to the lungs.
- Patients should not exhale through PULMICORT TURBUHALER (budesonide) .
- Due to the small volume of powder, the patient may not taste or sense the
presence of any medication entering the lungs when inhaling from the TURBUHALER
inhaler. This lack of sensation does not indicate that the patient is not
receiving benefit from PULMICORT TURBUHALER (budesonide) .
- Patients should be advised that rinsing the mouth with water without swallowing
after each dosing may decrease the risk of the development of oral candidiasis.
- Patients should be instructed that they will receive a new PULMICORT TURBUHALER (budesonide)
unit each time they refill their prescription. Patients should be advised
to discard the whole device after the labelled number of inhalations has been
used. When there are 20 doses remaining in PULMICORT TURBUHALER (budesonide) , a red mark
will appear in the indicator window.
- PULMICORT TURBUHALER (budesonide) should not be used with a spacer.
- The mouthpiece should not be bitten or chewed.
- The cover should be replaced securely after each opening.
- Patients should keep PULMICORT TURBUHALER (budesonide) clean and dry at all times.
- Patients should be advised that improvement in asthma control following
inhalation of PULMICORT TURBUHALER (budesonide) can occur within 24 hours of beginning
treatment although maximum benefit may not be achieved for 1 to 2 weeks, or
longer. If symptoms do not improve in that time frame, or if the condition
worsens, the patient should be instructed not to increase the dosage, but
to contact the physician.
- Patients whose systemic corticosteroids have been reduced or withdrawn should
be instructed to carry a warning card indicating that they may need supplemental
systemic corticosteroids during periods of stress or an asthma attack that
does not respond to bronchodilators.
- Patients should be advised not to stop the use of PULMICORT TURBUHALER (budesonide) abruptly.
- Patients should be warned to avoid exposure to chicken pox or measles and
if they are exposed, to consult their physicians without delay.
- Long-term use of inhaled corticosteroids, including budesonide, may increase
the risk of some eye problems (cataracts or glaucoma). Regular eye examinations
should be considered.
- Women considering the use of PULMICORT TURBUHALER (budesonide) should consult with their
physician if they are pregnant or intend to become pregnant, or if they are
breast-feeding a baby.
- Patients considering use of PULMICORT TURBUHALER (budesonide) should consult with their
physician if they are allergic to budesonide or any other orally inhaled corticosteroid.
- Patients should inform their physician of other medications they are taking
as PULMICORT TURBUHALER (budesonide) may not be suitable in some circumstances and the
physician may wish to use a different medicine.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Long-term studies were conducted in rats and mice using oral administration to evaluate the carcinogenic potential of budesonide.
In a 104-week oral study in Sprague-Dawley rats, a statistically significant
increase in the incidence of gliomas was observed in male rats receiving an
oral dose of 50 mcg/kg/day (less than the maximum recommended daily inhalation
dose in adults and children on a mcg/m2 basis). No tumorigenicity
was seen in male and female rats at respective oral doses up to 25 and 50 mcg/kg
(less than the maximum recommended daily inhalation dose in adults and children
on a mcg/m2 basis). In two additional two-year studies in male Fischer
and Sprague-Dawley rats, budesonide caused no gliomas at an oral dose of 50
mcg/kg (less than the maximum recommended daily inhalation dose in adults and
children on a mcg/m2 basis). However, in the male Sprague-Dawley
rats, budesonide caused a statistically significant increase in the incidence
of hepatocellular tumors at an oral dose of 50 mcg/kg (less than the maximum
recommended daily inhalation dose in adults and children on a mcg/m2
basis). The concurrent reference corticosteroids (prednisone and triamcinolone
acetonide) in these two studies showed similar findings.
There was no evidence of a carcinogenic effect when budesonide was administered
orally for 91 weeks to mice at doses up to 200 mcg/kg/day (less than the maximum
recommended daily inhalation dose in adults and children on a mcg/m2
basis).
Budesonide was not mutagenic or clastogenic in six different test systems:
Ames Salmonella/microsome plate test, mouse micronucleus test, mouse
lymphoma test, chromosome aberration test in human lymphocytes, sex-linked recessive
lethal test in Drosophila melanogaster, and DNA repair analysis in rat
hepatocyte culture.
In rats, budesonide had no effect on fertility at subcutaneous doses up to
80 mcg/kg (less than the maximum recommended human daily inhalation dose on
a mcg/m2 basis).
At 20 mcg/kg/day (less than the maximum recommended human daily inhalation
dose on a mcg/m2 basis), decreases in maternal body weight gain,
prenatal viability, and viability of the young at birth and during lactation
were observed. No such effects were noted at 5 mcg/kg (less than the maximum
recommended human daily inhalation dose in adults on a mcg/m2 basis).
Pregnancy: Teratogenic Effects
Pregnancy Category B: As with other glucocorticoids, budesonide produced fetal
loss, decreased pup weight, and skeletal abnormalities at subcutaneous doses
of 25 mcg/kg/day in rabbits (less than the maximum recommended human daily inhalation
dose on a mcg/m2 basis) and 500 mcg/kg/day in rats (approximately
3 times the maximum recommended human daily inhalation dose on a mcg/m2
basis).
No teratogenic or embryocidal effects were observed in rats when budesonide
was administered by inhalation at doses up to 250 mcg/kg/day (equivalent to
the maximum recommended human daily inhalation dose on a mcg/m2 basis).
Experience with oral corticosteroids since their introduction in pharmacologic as opposed to physiologic doses suggests that rodents are more prone to teratogenic effects from corticosteroids than humans.
Studies of pregnant women, however, have not shown that PULMICORT TURBUHALER (budesonide) increases the risk of abnormalities when administered during pregnancy. The results from a large population-based prospective cohort epidemiological study reviewing data from three Swedish registries covering approximately 99% of the pregnancies from 1995-1997 (i.e., Swedish Medical Birth Registry; Registry of Congenital Malformations; Child Cardiology Registry) indicate no increased risk for congenital malformations from the use of inhaled budesonide during early pregnancy. Congenital malformations were studied in 2,014 infants born to mothers reporting the use of inhaled budesonide for asthma in early pregnancy (usually 10-12 weeks after the last menstrual period), the period when most major organ malformations occur. The rate of recorded congenital malformations was similar compared with the general population rate (3.8 % vs. 3.5%, respectively). In addition, after exposure to inhaled budesonide, the number of infants born with orofacial clefts was similar to the expected number in the normal population (4 children vs. 3.3, respectively).
These same data were utilized in a second study bringing the total to 2,534 infants whose mothers were exposed to inhaled budesonide. In this study, the rate of congenital malformations among infants whose mothers were exposed to inhaled budesonide during early pregnancy was not different from the rate for all newborn babies during the same period (3.6%).
Despite the animal findings, it would appear that the possibility of fetal harm is remote if the drug is used during pregnancy. Nevertheless, because the studies in humans cannot rule out the possibility of harm, PULMICORT TURBUHALER (budesonide) should be used during pregnancy only if clearly needed.
Nonteratogenic Effects
Hypoadrenalism may occur in infants born of mothers receiving corticosteroids during pregnancy. Such infants should be carefully observed.
Nursing Mothers
Corticosteroids are secreted in human milk. Because of the potential for adverse reactions in nursing infants from any corticosteroid, a decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother. Actual data for budesonide are lacking.
Pediatric Use
Safety and effectiveness of PULMICORT TURBUHALER (budesonide) in pediatric patients below 6 years of age have not been established.
In pediatric asthma patients the frequency of adverse events observed with PULMICORT TURBUHALER (budesonide) was similar between the 6- to 12-year age group (N=172) compared with the 13- to 17-year age group (N=124).
Controlled clinical studies have shown that orally inhaled corticosteroids may cause a reduction in growth velocity in pediatric patients. This effect has been observed in the absence of laboratory evidence of hypothalamic-pituitary-adrenal (HPA) axis suppression, suggesting that growth velocity is a more sensitive indicator of systemic corticosteroid exposure in pediatric patients than some commonly used tests of HPA-axis function. The long-term effects of this reduction in growth velocity associated with orally inhaled corticosteroids including the impact on final adult height are unknown. The potential for “catch up” growth following discontinuation of treatment with orally inhaled corticosteroids has not been adequately studied.
In a study of asthmatic children 5-12 years of age, those treated with PULMICORT TURBUHALER (budesonide) 200 mcg twice daily (n=311) had a 1.1-centimeter reduction in growth compared with those receiving placebo (n=418) at the end of one year; the difference between these two treatment groups did not increase further over three years of additional treatment. By the end of four years, children treated with PULMICORT TURBUHALER (budesonide) and children treated with placebo had similar growth velocities. Conclusions drawn from this study may be confounded by the unequal use of corticosteroids in the treatment groups and inclusion of data from patients attaining puberty during the course of the study.
The growth of pediatric patients receiving orally inhaled corticosteroids, including PULMICORT TURBUHALER (budesonide) , should be monitored routinely (eg, via stadiometry). The potential growth effects of prolonged treatment should be weighed against clinical benefits obtained and the risks and benefits associated with alternative therapies. To minimize the systemic effects of inhaled corticosteroids, including PULMICORT TURBUHALER (budesonide) , each patient should be titrated to his/her lowest effective dose.
Geriatric Use
One hundred patients 65 years or older were included in the US and non-US controlled clinical trials of PULMICORT TURBUHALER (budesonide) . There were no differences in the safety and efficacy of the drug compared with those seen in younger patients.
In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.