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DALMANE®
(flurazepam hydrochloride) Capsules
Dalmane (flurazepam) is available as capsules containing 15 mg or 30 mg flurazepam hydrochloride. Each 15-mg capsule also contains cornstarch, lactose, magnesium stearate and talc; gelatin capsule shells contain the following dye systems: D&C Red No. 28, FD&C Red No. 40, FD&C Yellow No. 6 and D&C Yellow No. 10. Each 30-mg capsule also contains cornstarch, lactose and magnesium stearate; gelatin capsule shells contain the following dye systems: FD&C Blue No. 1, FD&C Yellow No. 6, D&C Yellow No. 10 and either FD&C Red No. 3 or FD&C Red No. 40.
Flurazepam hydrochloride is chemically 7-chloro-1-[2-(diethylamino)ethyl]-5-(o- fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one dihydrochloride. It is a pale yellow, crystalline compound, freely soluble in USP alcohol and very soluble in water. It has a molecular weight of 460.826 and the following structural formula:
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Dalmane (flurazepam) is a hypnotic agent useful for the treatment of insomnia characterized by difficulty in falling asleep, frequent nocturnal awakenings, and/or early morning awakening. Dalmane (flurazepam) can be used effectively in patients with recurring insomnia or poor sleeping habits, and in acute or chronic medical situations requiring restful sleep. Sleep laboratory studies have objectively determined that Dalmane (flurazepam) is effective for at least 28 consecutive nights of drug administration. Since insomnia is often transient and intermittent, short-term use is usually sufficient. Prolonged use of hypnotics is usually not indicated and should only be undertaken concomitantly with appropriate evaluation of the patient.
Dosage should be individualized for maximal beneficial effects. The usual adult dosage is 30 mg before retiring. In some patients, 15 mg may suffice. In elderly and/or debilitated patients, 15 mg is usually sufficient for a therapeutic response and it is therefore recommended that therapy be initiated with this dosage.
Dalmane (flurazepam hydrochloride) Capsules are available in the following presentations:
15 mg hard gelatin capsules in bottles of 100 (NDC 0187-4051-10), with ICN logo imprinted on the opaque orange cap and Dalmane® (flurazepam) 15 imprinted on the opaque ivory body.
30 mg hard gelatin capsules in bottles of 100 (NDC 0187-4052-10), with ICN logo imprinted on the opaque red cap and Dalmane® (flurazepam) 30 imprinted on the opaque ivory body.
Store at 25ºC (77ºF); excursions permitted to 15Cº-30ºC (59ºF-86ºF). [See USP Controlled Room Temperature]
Valeant Pharmaceuticals North America, Aliso Viejo, CA 92656. Rev. April 2007. FDA rev date: 10/30/2007
Dizziness, drowsiness, light-headedness, staggering, ataxia and falling have occurred, particularly in elderly or debilitated persons. Severe sedation, lethargy, disorientation and coma, probably indicative of drug intolerance or overdosage, have been reported.
Also reported were headache, heartburn, upset stomach, nausea, vomiting, diarrhea, constipation, gastrointestinal pain, nervousness, talkativeness, apprehension, irritability, weakness, palpitations, chest pains, body and joint pains and genitourinary complaints. There have also been rare occurrences of leukopenia, granulocytopenia, sweating, flushes, difficulty in focusing, blurred vision, burning eyes, faintness, hypotension, shortness of breath, pruritus, skin rash, dry mouth, bitter taste, excessive salivation, anorexia, euphoria, depression, slurred speech, confusion, restlessness, hallucinations, and elevated SGOT, SGPT, total and direct bilirubins, and alkaline phosphatase. Paradoxical reactions, eg, excitement, stimulation and hyperactivity, have also been reported in rare instances.
Abuse and addiction are separate and distinct from physical dependence and tolerance. Abuse is characterized by misuse of the drug for non-medical purposes, often in combination with other psychoactive substances. Physical dependence is a state of adaptation that is manifested by a specific withdrawal syndrome that can be produced by abrupt cessation, rapid dose reduction, decreasing blood level of the drug and/or administration of an antagonist. Tolerance is a state of adaptation in which exposure to a drug induces changes that result in a diminution of one or more of the drug's effects over time. Tolerance may occur to both the desired and undesired effects of the drug and may develop at different rates for different effects.
Addiction is a primary, chronic, neurobiological disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. It is characterized by behaviors that include one or more of the following: impaired control over drug use, compulsive use, continued use despite harm, and craving. Drug addiction is a treatable disease, utilizing a multidisciplinary approach, but relapse is common.
Withdrawal symptoms, similar in character to those noted with barbiturates and alcohol (convulsions, tremor, abdominal and muscle cramps, vomiting and sweating), have occurred following abrupt discontinuance of benzodiazepines. The more severe withdrawal symptoms have usually been limited to those patients who had received excessive doses over an extended period of time. Generally milder withdrawal symptoms (eg, dysphoria and insomnia) have been reported following abrupt discontinuance of benzodiazepines taken continuously at therapeutic levels for several months. Consequently, after extended therapy, abrupt discontinuation should generally be avoided and a gradual dosage tapering schedule followed. Addiction-prone individuals (such as drug addicts or alcoholics) should be under careful surveillance when receiving flurazepam or other psychotropic agents because of the predisposition of such patients to habituation and dependence.
No information provided.
Because sleep disturbances may be the presenting manifestation of a physical and/or psychiatric disorder, symptomatic treatment of insomnia should be initiated only after a careful evaluation of the patient. The failure of insomnia to remit after 7 to 10 days of treatment may indicate the presents of a primary psychiatric and/or medical illness that should be evaluated. Worsening of insomnia or the emergence of new thinking or behavior abnormalities may be the consequence of an unrecognized psychiatric or physical disorder. Such findings have emerged during the course of treatment with sedative-hypnotic drugs. Because some of the important adverse effects of sedative-hypnotics appear to be dose related (see PRECAUTIONS and DOSAGE AND ADMINISTRATION), it is important to use the smallest possible effective dose, especially in the elderly.
Complex behaviors such as "sleep-driving" (i.e., driving while not fully awake after ingestion of a sedative-hypnotic, with amnesia for the event) have been reported. These events can occur in sedative-hypnotic-naïve as well as in sedative-hypnotic-experienced persons. Although behaviors such as sleep-driving may occur with sedative-hypnotics alone at therapeutic doses, the use of alcohol and other CNS depressants with sedative- hypnotics appears to increase the risk of such behaviors, as does the use of sedative- hypnotics at doses exceeding the maximum recommended dose. Due to the risk to the patients and the community, discontinuation of sedative-hypnotics should be strongly considered for patients who report a "sleep-driving" episode.
Other complex behaviors (e.g., preparing and eating food, making phone calls, or having sex) have been reported in patients who are not fully awake after taking a sedative- hypnotic. As with sleep-driving, patients usually do not remember these events.
Rare cases of angioedema involving the tongue, glottis or larynx have been reported in patients after taking the first or subsequent doses of sedative-hypnotics, including Dalmane (flurazepam) . Some patients have had additional symptoms such as dyspnea, throat closing, or nausea and vomiting that suggest anaphylaxis. Some patients have required medical therapy in the emergency department. If angioedema involves the tongue, glottis or larynx, airway obstruction may occur and be fatal. Patients who develop angioedema after treatment with Dalmane (flurazepam) should not be rechallenged with the drug.
Patients receiving Dalmane (flurazepam) should be cautioned about possible combined effects with alcohol and other CNS depressants. Also, caution patients that an additive effect may occur if alcoholic beverages are consumed during the day following the use of Dalmane (flurazepam) for nighttime sedation. The potential for this interaction continues for several days following discontinuance of flurazepam, until serum levels of psychoactive metabolites have declined.
Patients should also be cautioned about engaging in hazardous occupations requiring complete mental alertness such as operating machinery or driving a motor vehicle after ingesting the drug, including potential impairment of the performance of such activities which may occur the day following ingestion of Dalmane (flurazepam) .
Usage in Children: Clinical investigations of Dalmane (flurazepam) have not been carried out in children. Therefore, the drug is not currently recommended for use in persons under 15 years of age.
Withdrawal symptoms of the barbiturate type have occurred after the discontinuation of benzodiazepines. (See DRUG ABUSE AND DEPENDENCE Section.)
Since the risk of the development of oversedation, dizziness, confusion and/or ataxia increases substantially with larger doses in elderly and debilitated patients, it is recommended that in such patients the dosage be limited to 15 mg. If Dalmane (flurazepam) is to be combined with other drugs having known hypnotic properties or CNS- depressant effects, due consideration should be given to potential additive effects.
The usual precautions are indicated for severely depressed patients or those in whom there is any evidence of latent depression; particularly the recognition that suicidal tendencies may be present and protective measures may be necessary.
The usual precautions should be observed in patients with impaired renal or hepatic function and chronic pulmonary insufficiency.
Geriatric Use: Since the risk of the development of oversedation, dizziness, confusion and/or ataxia increases substantially with larger doses in elderly and debilitated patients, it is recommended that in such patients the dosage be limited to 15 mg. Staggering and falling have also been reported, particularly in geriatric patients.
Following single-dose administration of flurazepam, the elimination half-life for desalkyl-flurazepam was longer in elderly male subjects compared with younger male subjects, while values between elderly and young females were not significantly different. After multiple dosing, elimination half-life of desalkyl-flurazepam was longer in all elderly subjects compared with younger subjects, and mean steady-state serum concentrations were higher only in elderly male subjects relative to younger subjects (see CLINICAL PHARMACOLOGY: Geriatric Pharmacokinetics).
Manifestations of Dalmane (flurazepam) overdosage include somnolence, confusion and coma. Respiration, pulse and blood pressure should be monitored as in all cases of drug overdosage. General supportive measures should be employed, along with immediate gastric lavage. Intravenous fluids should be administered and an adequate airway maintained. Hypotension and CNS depression may be combated by judicious use of appropriate therapeutic agents. The value of dialysis has not been determined. If excitation occurs in patients following Dalmane (flurazepam) overdosage, barbiturates should not be used. As with the management of intentional overdosage with any drug, it should be borne in mind that multiple agents may have been ingested.
Flumazenil, a specific benzodiazepine-receptor antagonist, is indicated for the complete or partial reversal of the sedative effects of benzodiazepines and may be useful in situations when an overdose with a benzodiazepine is known or suspected. Prior to the administration of flumazenil, necessary measures should be instituted to secure airway, ventilation and intravenous access. Flumazenil is intended as an adjunct to, not as a substitute for, proper management of benzodiazepine overdose. Patients treated with flumazenil should be monitored for resedation, respiratory depression and other residual benzodiazepine effects for an appropriate period after treatment. The prescriber should be aware of a risk of seizure in association with flumazenil treatment, particularly in long-term benzodiazepine users and in cyclic antidepressant overdose. The complete flumazenil package insert, including CONTRAINDICATIONS, WARNINGS and PRECAUTIONS, should be consulted prior to use.
Dalmane (flurazepam) is contraindicated in patients with known hypersensitivity to the drug.
Usage in Pregnancy: Benzodiazepines may cause fetal damage when administered during pregnancy. An increased risk of congenital malformations associated with the use of diazepam and chlordiazepoxide during the first trimester of pregnancy has been suggested in several studies.
Dalmane (flurazepam) is contraindicated in pregnant women. Symptoms of neonatal depression have been reported; a neonate whose mother received 30 mg of Dalmane (flurazepam) nightly for insomnia during the 10 days prior to delivery appeared hypotonic and inactive during the first 4 days of life. Serum levels of N1-desalkyl-flurazepam in the infant indicated transplacental circulation and implicate this long-acting metabolite in this case. If there is a likelihood of the patient becoming pregnant while receiving flurazepam, she should be warned of the potential risks to the fetus. Patients should be instructed to discontinue the drug prior to becoming pregnant. The possibility that a woman of childbearing potential may be pregnant at the time of institution of therapy should be considered.
Flurazepam hydrochloride is rapidly absorbed from the GI tract. Flurazepam is rapidly metabolized and is excreted primarily in the urine. Following a single oral dose, peak flurazepam plasma concentrations ranging from 0.5 to 4.0 ng/mL occur at 30 to 60 minutes post-dosing. The harmonic mean apparent half-life of flurazepam is 2.3 hours. The blood level profile of flurazepam and its major metabolites was determined in man following the oral administration of 30 mg daily for 2 weeks. The N1-hydroxyethyl-flurazepam was measurable only during the early hours after a 30-mg dose and was not detectable after 24 hours. The major metabolite in blood was N1-desalkyl-flurazepam, which reached steady-state (plateau) levels after 7 to 10 days of dosing, at levels approximately 5- to 6-fold greater than the 24-hour levels observed on Day 1. The half-life of elimination of N1-desalkyl-flurazepam ranged from 47 to 100 hours. The major urinary metabolite is conjugated N1-hydroxyethyl- flurazepam which accounts for 22% to 55% of the dose. Less than 1% of the dose is excreted in the urine as N1-desalkyl-flurazepam.
This pharmacokinetic profile may be responsible for the clinical observation that flurazepam is increasingly effective on the second or third night of consecutive use and that for 1 or 2 nights after the drug is discontinued both sleep latency and total wake time may still be decreased.
Geriatric Pharmacokinetics: The single dose pharmacokinetics of flurazepam were studied in 12 healthy geriatric subjects (aged 61 to 85 years). The mean elimination half- life of desalkyl-flurazepam was longer in elderly male subjects (160 hours) compared with younger male subjects (74 hours), while mean elimination half-life was similar in geriatric female subjects (120 hours) and younger female subjects (90 hours). After multiple dosing, mean steady-state plasma levels of desalkyl-flurazepam were higher in elderly male subjects (81 ng/ml) compared with younger male subjects (53 ng/ml), while values were similar between elderly female subjects (85 ng/ml) and younger female subjects (86 ng/ml). The mean washout half-life of desalkyl-flurazepam was longer in elderly male and female subjects (126 and 158 hours, respectively) compared with younger male and female subjects (111 and 113 hours, respectively).1
REFERENCE:
1. Greenblatt DJ, Divoll M, Harmatz JS, MacLauglin DS, Shader RI: Kinetics and clinical effects of flurazepam in young and elderly noninsomniacs. Clin Pharmacol Ther 30:475-486, 1981.
MEDICATION GUIDE
Dalmane (flurazepam) ®
(DAL-main) Capsules, 15 mg and 30 mg
is a Sedative-Hypnotic indicated for Insomnia
Generic name: flurazepam (flew-raz-e-pam) hydrochloride capsules
Read this Medication Guide carefully before you start taking your medicine and each time you get more, since there may be new information. It does not contain all the information about your medicine that you may need to know, so please ask your doctor, nurse or pharmacist if you have any questions.
IMPORTANT
YOUR DOCTOR HAS PRESCRIBED THIS DRUG FOR YOUR USE ONLY. DO NOT LET ANYONE ELSE USE IT. KEEP THIS MEDICINE OUT OF THE REACH OF CHILDREN AND PETS. If a child puts a Dalmane® (flurazepam) capsule in his or her mouth or swallows it, call your local Poison Control Center or go immediately to the nearest emergency room.
What is the most important information I should know about sedative-hypnotic drugs?
After taking a sedative-hypnotic drug, you may get up out of bed while not being fully awake and do an activity that you do not know you are doing. The next morning, you may not remember that you did anything during the night. You have a higher chance for doing these activities if you drink alcohol or take other medications that make you sleepy with a sedative-hypnotic drug.
Reported activities include:
Important:
What is Dalmane® (flurazepam) ?
Dalmane® (flurazepam) is a sedative-hypnotic agent used to treat insomnia (difficulty falling asleep and staying asleep).
Who should not take Dalmane® (flurazepam) ?
Do not use Dalmane® (flurazepam) if you are:
How should I take Dalmane® (flurazepam) ?
Dalmane® (flurazepam) comes as a capsule to take by mouth. You should take Dalmane® (flurazepam) , or other sedative-hypnotic medications, exactly as directed by your doctor. It usually is taken right before you get in bed, not sooner. If you forget to take Dalmane® (flurazepam) at bedtime, you are unable to fall asleep, and you will still be able to stay in bed for a full night's sleep, you may take Dalmane® (flurazepam) at that time. Do not take a double dose of Dalmane® (flurazepam) to make up for a missed dose.
The smallest possible effective dose is suggested for elderly patients due to the risk of the development of oversedation, dizziness, confusion and/or loss of coordination.
Sleep problems are often temporary, requiring treatment for a very short time. You should not use Dalmane® (flurazepam) , or any other sedative-hypnotic medications, for long periods of time without talking to your doctor about the risks and benefits of prolonged use.
In the case of a suspected overdose, you should contact your local poison control center immediately.
What should I avoid while taking Dalmane® (flurazepam) ?
Do not drink alcohol or take other medications that depress the central nervous system.
While taking Dalmane® (flurazepam) , do not engage in any hazardous occupations requiring complete mental alertness such as operating machinery or driving a car.
What are the possible or reasonably likely side effects of Dalmane® (flurazepam) ?
Dizziness, drowsiness, light-headedness, staggering, loss of coordination and falling have occurred, particularly in elderly or debilitated persons. Severe sedation, lethargy, disorientation and coma, probably indicative of drug intolerance or overdosage, have been reported. Also reported are headache, heartburn, upset stomach, nausea, vomiting, diarrhea, constipation, nervousness, talking more than usual, anxiety, irritability, weakness, pounding heartbeat, chest pain, body and joint pains and difficulty urinating.
General information about the safe and effective use of Dalmane® (flurazepam)
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. If you have any concerns about taking this, or any sedative-hypnotic medication, please ask your doctor. For detailed information regarding Dalmane® (flurazepam) please consult the physician's package insert. Do not use for conditions for which this medication was not prescribed. Do not give this medication to others.
What are the ingredients of Dalmane (flurazepam) ® Capsules?
Active Ingredient: flurazepam hydrochloride (15 mg or 30 mg)
Inactive Ingredients: Each 15 mg capsule also contains cornstarch, lactose,
magnesium stearate and talc; gelatin capsule shells contain D&C Red No.
28, FD&C Red No. 40, FD&C Yellow No. 6 and D&C Yellow No. 10. Each
30 mg capsule also contains cornstarch, lactose and magnesium stearate; gelatin
capsule shells contain FD&C Blue No. 1, FD&C Yellow No. 6, D&C Yellow
No. 10 and either FD&C Red No. 3 or FD&C Red No. 40.
How should I store Dalmane® (flurazepam) Capsules?
This Medication Guide has been approved by the U.S. Food and Drug Administration.
Distributed by: Valeant Pharmaceuticals North America Aliso Viejo, CA 92625
U.S.A. Rev. Date: 3/09
