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Zolpimist

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Zolpimist

Warnings
Precautions

WARNINGS

Included as part of the PRECAUTIONS section.

PRECAUTIONS

Need to evaluate for co-morbid diagnoses

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 presence of a primary psychiatric and/or medical illness that should be evaluated. Worsening of insomnia or the emergence of new thinking or behavioral 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, including zolpidem.

Severe anaphylactic and anaphylactoid reactions

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 zolpidem. 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 throat, glottis, or larynx, airway obstruction may occur and be fatal. Patients who develop angioedema after treatment with zolpidem should not be rechallenged with the drug.

Abnormal thinking and behavioral changes

A variety of abnormal thinking and behavioral changes have been reported to occur in association with the use of sedative-hypnotics. Some of these changes may be characterized by decreased inhibition (e.g., aggressiveness and extroversion that seemed out of character), similar to effects produced by alcohol and other CNS depressants. Visual and auditory hallucinations have been reported as well as behavioral changes such as bizarre behavior, agitation, and depersonalization. In controlled trials, < 1% of adults with insomnia who received zolpidem reported hallucinations. In a clinical trial, 7.4% of pediatric patients with insomnia associated with attention-deficit/hyperactivity disorder (ADHD), who received zolpidem, reported hallucinations [see Use in Specific Populations].

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 with sedative-hypnotics, including zolpidem. These events can occur in sedative-hypnotic-naive as well as in sedative­hypnotic-experienced persons. Although behaviors such as “sleep-driving” may occur with Zolpimist (zolpidem tartrate oral spray) alone at therapeutic doses, the use of alcohol and other CNS depressants with zolpidem tartrate appears to increase the risk of such behaviors, as does the use of zolpidem at doses exceeding the maximum recommended dose. Due to the risk to the patient and the community, discontinuation of Zolpimist (zolpidem tartrate oral spray) 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. Amnesia, anxiety, and other neuropsychiatric symptoms may occur unpredictably.

In primarily depressed patients, worsening of depression, including suicidal thoughts and actions (including completed suicides), has been reported in association with the use of sedative-hypnotics.

It can rarely be determined with certainty whether a particular instance of the abnormal behaviors listed above is drug induced, spontaneous in origin, or a result of an underlying psychiatric or physical disorder. Nonetheless, the emergence of any new behavioral sign or symptom of concern requires careful and immediate evaluation.

Withdrawal effects

Following the rapid dose decrease or abrupt discontinuation of sedative-hypnotics, there have been reports of signs and symptoms similar to those associated with withdrawal from other CNS-depressant drugs [see Drug Abuse and Dependence].

CNS-depressant effects

Zolpidem tartrate, like other sedative-hypnotic drugs, has CNS-depressant effects. Due to the rapid onset of action, Zolpimist (zolpidem tartrate oral spray) should only be administered immediately prior to going to bed. Patients should be cautioned against engaging in hazardous occupations requiring complete mental alertness or motor coordination such as operating machinery or driving a motor vehicle after ingesting the drug, including potential impairment of the performance of such activities that may occur the day following administration of Zolpimist. Zolpidem tartrate showed additive effects when combined with alcohol and should not be taken with alcohol. Patients should also be cautioned about possible combined effects with other CNS-depressant drugs. Dosage adjustments may be necessary when Zolpimist (zolpidem tartrate oral spray) is administered with such agents because of the potentially additive effects.

Special populations

Use in the elderly and/or debilitated patients

Impaired motor and/or cognitive performance after repeated exposure or unusual sensitivity to sedative-hypnotic drugs is a concern in the treatment of elderly and/or debilitated patients. Therefore, the recommended Zolpimist (zolpidem tartrate oral spray) dosage is 5 mg in such patients to decrease the possibility of side effects [see DOSAGE AND ADMINISTRATION ]. These patients should be closely monitored.

Use in patients with concomitant illness

Clinical experience with zolpidem tartrate in patients with concomitant systemic illness is limited. Caution is advisable in using Zolpimist (zolpidem tartrate oral spray) in patients with diseases or conditions that could affect metabolism or hemodynamic responses.

Although studies did not reveal respiratory depressant effects at hypnotic doses of zolpidem in normal subjects or in patients with mild to moderate chronic obstructive pulmonary disease (COPD), a reduction in the Total Arousal Index together with a reduction in lowest oxygen saturation and increase in the times of oxygen desaturation below 80% and 90% was observed in patients with mild-to-moderate sleep apnea when treated with zolpidem tartrate (10 mg) when compared to placebo. Since sedative-hypnotics have the capacity to depress respiratory drive, precautions should be taken if Zolpimist (zolpidem tartrate oral spray) is prescribed to patients with compromised respiratory function. Post-marketing reports of respiratory insufficiency, most of which involved patients with pre-existing respiratory impairment, have been received. Zolpimist (zolpidem tartrate oral spray) should be used with caution in patients with sleep apnea syndrome or myasthenia gravis.

Data in end-stage renal failure patients repeatedly treated with zolpidem tartrate did not demonstrate drug accumulation or alterations in pharmacokinetic parameters. No dosage adjustment in renally impaired patients is required; however, these patients should be closely monitored [see CLINICAL PHARMACOLOGY].

A study in subjects with hepatic impairment did reveal prolonged elimination in this group; therefore, treatment should be initiated with 5 mg in patients with hepatic compromise, and they should be closely monitored [see DOSAGE AND ADMINISTRATION and CLINICAL PHARMACOLOGY].

Use in patients with depression

As with other sedative-hypnotic drugs, Zolpimist (zolpidem tartrate oral spray) should be administered with caution to patients exhibiting signs or symptoms of depression. Suicidal tendencies may be present in such patients and protective measures may be required. Intentional over-dosage is more common in this group of patients; therefore, the least amount of drug that is feasible should be prescribed for the patient at any one time.

Use in pediatric patients

Safety and effectiveness of zolpidem have not been established in pediatric patients. In an 8-week study in pediatric patients (6-17 years of age) with insomnia associated with ADHD, zolpidem did not decrease sleep latency compared to placebo. Hallucinations were reported in 7.4% of the pediatric patients who received zolpidem tartrate; none of the pediatric patients who received placebo reported hallucinations [see Use in Specific Populations].

Patient Counseling Information

Prescribers or other healthcare professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with sedative-hypnotics, should counsel them in its appropriate use, and should instruct them to read the accompanying Medication Guide and Patient Instructions for Use [see Medication Guide and Patient Instructions for Use].

Severe anaphylactic and anaphylactoid reactions

Inform patients that severe anaphylactic and anaphylactoid reactions have occurred with zolpidem. Describe the signs/symptoms of these reactions and advise patients to seek medical attention immediately if any of them occur.

Sleep-driving and other complex behaviors

There have been reports of people getting out of bed after taking a sedative-hypnotic and driving their cars while not fully awake, often with no memory of the event. If a patient experiences such an episode, it should be reported to his or her doctor immediately, since “sleep-driving” can be dangerous. This behavior is more likely to occur when Zolpimist (zolpidem tartrate oral spray) is taken with alcohol or other central nervous system depressants [see WARNINGS AND PRECAUTIONS]. 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 “sleepdriving”, patients usually do not remember these events.

In addition patients should be advised to report all concomitant medications to the prescriber. Patients should be instructed to report events such as “sleep-driving” and other complex behaviors immediately to the prescriber.

Administration instructions

See the DOSAGE AND ADMINISTRATION section [see Administration]. Zolpimist (zolpidem tartrate oral spray) is packaged in a child-resistant container. Patients should be referred to the Patient Instructions for Use (following the Medication Guide) for detailed instructions on how to use Zolpimist (zolpidem tartrate oral spray) . Patients should be counseled to take Zolpimist (zolpidem tartrate oral spray) right before they get into bed and only when they are able to stay in bed a full night (7-8 hours) before being active again. Zolpimist (zolpidem tartrate oral spray) should not be taken with or immediately after a meal. Advise patients NOT to take Zolpimist (zolpidem tartrate oral spray) when drinking alcohol.

Nonclinical Toxicology

Carcinogenesis, mutagenesis, impairment of fertility

Carcinogenesis

Zolpidem was administered to mice and rats for 2 years at dietary dosages of 4, 18, and 80 mg base/kg. In mice, these doses are ≈ 2.5, 10, and 50 times the maximum recommended human dose (MRHD) of 10 mg/day (8 mg zolpidem base) on mg/m² basis. In rats, these doses are ≈ 5, 20, and 100 times the MRHD on a mg/m² basis. No evidence of carcinogenic potential was observed in mice. In rats, renal tumors (lipoma, liposarcoma) were seen at the mid- and high doses.

Mutagenesis

Zolpidem was negative in in vitro (bacterial reverse mutation, mouse lymphoma, and chromosomal aberration) and in vivo (mouse micronucleus) genetic toxicology assays.

Impairment of fertility

Oral administration of zolpidem (doses of 4, 20, and 100 mg base/kg or ≈5, 24, and 120 times the MRHD on a mg/m² basis) to rats prior to and during mating, and continuing in females through postpartum day 25, resulted in irregular estrus cycles and prolonged precoital intervals. The no-effect dose for these findings is ≈24 times the MRHD on a mg/m² basis. There was no impairment of fertility at any dose tested.

Use In Specific Populations

Pregnancy

Pregnancy Category C

There are no adequate and well-controlled studies of Zolpimist (zolpidem tartrate oral spray) in pregnant women. Zolpimist (zolpidem tartrate oral spray) should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Studies to assess the effects on children whose mothers took zolpidem during pregnancy have not been conducted. There is a published case report documenting the presence of zolpidem in human umbilical cord blood. Children born to mothers taking sedative-hypnotic drugs may be at some risk for withdrawal symptoms from the drug during the postnatal period. In addition, neonatal flaccidity has been reported in infants born of mothers who received sedative-hypnotic drugs during pregnancy.

Administration of zolpidem to pregnant rats and rabbits resulted in adverse effects on offspring development at doses greater than the maximum recommended human dose (MRHD) of 10 mg/day (8 mg/day zolpidem base); however, teratogenicity was not observed.

When zolpidem was administered at oral doses of 4, 20, and 100 mg base/kg ( 5, 24, and 120 times the MRHD on a mg/m² basis) to pregnant rats during the period of organogenesis, dose-related decreases in fetal skull ossification were observed at all but the low dose, which is 5 times the MRHD on a mg/m² basis. In rabbits treated during organogenesis with zolpidem at oral doses of 1, 4, and 16 mg base/kg (≈ 2.5, 10, and 40 times the MRHD on a mg/m² basis), increased embryo-fetal death and incomplete fetal skeletal ossification were seen at the highest dose tested. The no-effect dose for embryo-fetal toxicity in rabbits is ≈ 10 times the MRHD on a mg/m² basis. Administration of zolpidem to rats at oral doses of 4, 20, and 100 mg base/kg (≈ 5, 24, and 120 times the MRHD on a mg/m² basis) during the latter part of pregnancy and throughout lactation produced decreased offspring growth and survival at all but the low dose, which is ≈ 5 times the MRHD on a mg/m² basis.

Labor and delivery

Zolpimist (zolpidem tartrate oral spray) has no established use in labor and delivery [see Pregnancy].

Nursing mothers

Zolpidem is excreted into human milk. Studies in lactating mothers indicate that the t½ of zolpidem is similar to that in non-lactating women (2.6 ± 0.3hours). Between 0.004% and 0.019% of the total administered dose is excreted into milk. The effect of zolpidem on the nursing infant is not known.

Pediatric use

Safety and effectiveness of zolpidem have not been established in pediatric patients.

In an 8-week controlled study, 201 pediatric patients (6-17 years of age) with insomnia associated with ADHD (90% of the patients were using psychoanaleptics) were treated with an oral solution of zolpidem (n=136) or placebo (n=65). Zolpidem did not significantly decrease latency to persistent sleep, compared to placebo, as measured by polysomnography after 4 weeks of treatment. Psychiatric and nervous system disorders comprised the most frequent ( > 5%) treatment emergent adverse reactions observed with zolpidem tartrate versus placebo and included dizziness (23.5% vs 1.5%), headache (12.5% vs 9.2%), and hallucinations (7.4% vs 0%) [see WARNINGS AND PRECAUTIONS]. Ten patients on zolpidem (7.4%) discontinued treatment due to an adverse reaction.

Geriatric use

A total of 154 patients in U.S. controlled clinical trials and 897 patients in non-U.S. clinical trials who received zolpidem were ≥ 60 years of age. In a pool of U.S. patients receiving zolpidem at doses of ≥ 10 mg or placebo, there were three adverse reactions occurring at an incidence of at least 3% for zolpidem tartrate and for which the zolpidem incidence was at least twice the placebo incidence (i.e., they could be considered drug related).

Adverse Reaction Zolpidem Placebo
Dizziness 3% 0%
Drowsiness 5% 2%
Diarrhea 3% 1%

A total of 30/1,959 (1.5%) non-U.S. patients receiving zolpidem reported falls, including 28/30 (93%) who were ≥ 70 years of age. Of these 28 patients, 23 (82%) were receiving zolpidem doses > 10 mg. A total of 24/1,959 (1.2%) non-U.S. patients receiving zolpidem reported confusion, including 18/24 (75%) who were ≥ 70 years of age. Of these 18 patients, 14 (78%) were receiving zolpidem doses > 10 mg.

The dose of Zolpimist (zolpidem tartrate oral spray) in elderly patients is 5 mg to minimize the adverse effects related to impaired motor and/or cognitive performance and unusual sensitivity to sedative-hypnotic drugs [see WARNINGS AND PRECAUTIONS].

Last reviewed on RxList: 2/23/2009
This monograph has been modified to include the generic and brand name in many instances.

Warnings
Precautions
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