ZOLPIDEM TARTRATE- zolpidem tartrate tablet, extended release
Complex sleep behaviors including sleep-walking, sleep-driving, and engaging in other activities while not fully awake may occur following use of zolpidem tartrate extended-release tablets. Some of these events may result in serious injuries, including death. Discontinue zolpidem tartrate extended-release tablets immediately if a patient experiences a complex sleep behavior [see Contraindications (4) and Warnings and Precautions (5.1)].
Zolpidem tartrate extended-release tablets are indicated for the treatment of insomnia characterized by difficulties with sleep onset and/or sleep maintenance (as measured by wake time after sleep onset).
The clinical trials performed in support of efficacy were up to 3 weeks (using polysomnography measurement up to 2 weeks in both adult and elderly patients) and 24 weeks (using patient-reported assessment in adult patients only) in duration [see Clinical Studies (14)].
Use the lowest effective dose for the patient. The recommended initial dose is 6.25 mg for women and either 6.25 or 12.5 mg for men, taken only once per night immediately before bedtime with at least 7 to 8 hours remaining before the planned time of awakening. If the 6.25 mg dose is not effective, the dose can be increased to 12.5 mg. In some patients, the higher morning blood levels following use of the 12.5 mg dose increase the risk of next-day impairment of driving and other activities that require full alertness [see Warnings and Precautions ( 5.2)]. The total dose of zolpidem tartrate extended-release tablets should not exceed 12.5 mg once daily immediately before bedtime. Zolpidem tartrate extended-release tablets should be taken as a single dose and should not be readministered during the same night.
The recommended initial doses for women and men are different because zolpidem clearance is lower in women.
Elderly or debilitated patients may be especially sensitive to the effects of zolpidem tartrate. The recommended dose of zolpidem tartrate extended-release tablets in these patients is 6.25 mg once daily immediately before bedtime [see Warnings and Precautions ( 5.2), Use in Specific Populations (8.5)].
Patients with mild to moderate hepatic impairment do not clear the drug as rapidly as normal subjects. The recommended dose of zolpidem tartrate extended-release tablets in these patients is 6.25 mg once daily immediately before bedtime. Avoid zolpidem tartrate extended-release tablets use in patients with severe hepatic impairment as it may contribute to encephalopathy [see Warnings and Precautions ( 5.8), Use in Specific Populations (8.7), Clinical Pharmacology (12.3)].
Dosage adjustment may be necessary when zolpidem tartrate extended-release tablets are combined with other CNS- depressant drugs because of the potentially additive effects [see Warnings and Precautions ( 5.2)].
Zolpidem tartrate extended-release tablets should be swallowed whole, and not be divided, crushed, or chewed. The effect of zolpidem tartrate extended-release tablets may be slowed by ingestion with or immediately after a meal.
Zolpidem tartrate extended-release tablets, USP contain 6.25 mg or 12.5 mg of zolpidem tartrate for oral administration. Tablets are not scored.
Zolpidem tartrate extended-release tablets, USP, 6.25 mg are dark pink, round, biconvex film-coated tablets debossed with SZ on one side and 228 on the other side.
Zolpidem tartrate extended-release tablets, USP, 12.5 mg tablets are light pink, round, biconvex film-coated tablets debossed with SZ on one side and 229 on the other side.
Zolpidem tartrate extended-release tablets are contraindicated in patients
- who have experienced complex sleep behaviors after taking zolpidem tartrate extended-release [see Warnings and Precautions (5.1)].
- with known hypersensitivity to zolpidem. Observed reactions include anaphylaxis and angioedema [see Warnings and Precautions ( 5.4)].
Complex sleep behaviors, including sleep-walking, sleep-driving, and engaging in other activities while not fully awake, may occur following the first or any subsequent use of zolpidem tartrate extended-release. Patients can be seriously injured or injure others during complex sleep behaviors. Such injuries may result in a fatal outcome. Other complex sleep behaviors (e.g., preparing and eating food, making phone calls, or having sex) have also been reported. Patients usually do not remember these events. Postmarketing reports have shown that complex sleep behaviors may occur with zolpidem tartrate extended-release alone at recommended doses, with or without the concomitant use of alcohol or other Central Nervous System (CNS) depressants [see Drug Interactions (7.1)]. Discontinue zolpidem tartrate extended-release immediately if a patient experiences a complex sleep behavior [see Contraindications (4)].
Zolpidem tartrate extended-release tablet is a CNS depressant and can impair daytime function in some patients even when used as prescribed. Prescribers should monitor for excess depressant effects, but impairment can occur in the absence of subjective symptoms, and may not be reliably detected by ordinary clinical exam (i.e. less than formal psychomotor testing). While pharmacodynamic tolerance or adaptation to some adverse depressant effects of zolpidem tartrate extended-release may develop, patients using zolpidem tartrate extended-release should be cautioned against driving or engaging in other hazardous activities or activities requiring complete mental alertness the day after use.
Additive effects occur with concomitant use of other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol), including daytime use [see Drug Interactions (7.1)]. Downward dose adjustment of zolpidem tartrate extended-release and concomitant CNS depressants should be considered [see Dosage and Administration (2.3)].
The use of zolpidem tartrate extended-release with other sedative-hypnotics (including other zolpidem products) at bedtime or the middle of the night is not recommended.
The risk of next-day psychomotor impairment is increased if zolpidem tartrate extended-release is taken with less than a full night of sleep remaining (7 to 8 hours); if higher than the recommended dose is taken; if coadministered with other CNS depressants or alcohol; or coadministered with other drugs that increase the blood levels of zolpidem. Patients should be warned against driving and other activities requiring complete mental alertness if zolpidem tartrate extended-release is taken in these circumstances [see Dosage and Administration (2), Clinical Studies (14.2)].
Vehicle drivers and machine operators should be warned that, as with other hypnotics, there may be a possible risk of adverse reactions including drowsiness, prolonged reaction time, dizziness, sleepiness, blurred/double vision, reduced alertness, and impaired driving the morning after therapy. In order to minimize this risk a full night of sleep (7 to 8 hours) is recommended.
Because zolpidem tartrate extended-release can cause drowsiness and a decreased level of consciousness, patients, particularly the elderly, are at higher risk of falls.
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 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, including zolpidem.
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