Temazepam: what it treats, how to take it, side effects
Last updated September 3, 2026.
Temazepam is a benzodiazepine - it slows activity in the brain to allow sleep. You may know it as Restoril. It is a controlled substance (Schedule IV), habit forming, and built for short stretches of insomnia, not open-ended use - prescriptions for it always come from your own prescriber.
What does it treat?
Insomnia - difficulty falling asleep or staying asleep. Sleep problems should improve within 7 to 10 days; if they do not, or they worsen, or your thoughts or behavior change, that is a call to your doctor, not a dose increase.
How do you take it?
One capsule as needed at bedtime - plan to go to bed right after taking it and to stay in bed 7 to 8 hours. Do not take it if you cannot stay asleep that long; getting up too soon brings memory problems. Take exactly as directed: it may be habit forming, so never a larger dose, more often, or longer than prescribed. Never stop suddenly after regular use - withdrawal can bring unusual movements, ringing ears, anxiety, memory and concentration problems, sleep problems, seizures, shaking, muscle twitching, mental-health changes, burning or prickling in the limbs, hallucinations, thoughts of harming yourself or others, overexcitement, or losing touch with reality; any of those means calling immediately. Alcohol compounds it - ask your doctor before drinking at all.
Side effects to know
- Common: the hangover effect - grogginess the next day - drowsiness, and dizziness.
- Serious - call your doctor immediately or get emergency care: rash, hives, swelling of the face, throat, tongue, lips, or eyes, hoarseness, or difficulty breathing or swallowing; and the combination warning - unusual dizziness, lightheadedness, extreme sleepiness, slowed or difficult breathing, or unresponsiveness, especially with pain or cough medications on board.
Who should not take it?
The combination with opioids - pain or cough medications - can cause serious or life-threatening breathing problems, sedation, or coma, so that pairing only happens under explicit prescriber direction, with your family briefed on the warning signs. Tell your doctor if you have ever drunk large amounts of alcohol, used street drugs, or overused prescription medications, and about any depression or mental illness - all shape the risk. Some people on sleep medicines have driven, eaten, had sex, or made calls while not fully awake, remembering nothing: if that happens, call your doctor right away. Mental health can shift unexpectedly on it - aggression, hallucinations, feeling outside your body, new or worsening depression, thoughts of self-harm - and those mean immediate calls.
When is it an emergency?
Slowed or difficult breathing, unresponsiveness, or throat swelling is a 911 call. Thoughts of harming yourself - 988, the Suicide and Crisis Lifeline. For an overdose, call Poison Control at 1-800-222-1222. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
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Common questions
Why is temazepam only for short-term use?
It is a benzodiazepine and it may be habit forming - MedlinePlus says to never take a larger dose, more often, or longer than prescribed. Sleep problems should improve within 7 to 10 days; persisting insomnia past that is a signal to investigate the cause, not extend the drug. Your prescriber owns the duration, and stopping after regular use is a taper, not a halt - sudden stops can bring seizures, shaking, anxiety, and the withdrawal list on the warning section.
Why do I have to stay in bed 7 to 8 hours after taking it?
Because it works on your schedule whether you sleep or not. MedlinePlus: plan to go to bed right after taking temazepam and stay in bed 7 to 8 hours - take it when you cannot stay asleep that long and you risk memory problems and next-morning impairment. A 5 am dose before a 7 am alarm is not a half-night helper; it is a groggy, amnesic morning.
Why can't I take it with my pain medication?
The combination warning: benzodiazepines plus opioids - pain or cough medications - can cause serious or life-threatening breathing problems, sedation, or coma. If your prescriber ever deliberately combines them, your family should know the watch-signs: unusual dizziness, extreme sleepiness, slowed or difficult breathing, unresponsiveness. Those are call-911 signs, not sleep-it-off signs.
Is temazepam addictive?
It can be - MedlinePlus says plainly it may be habit forming, and asks you to report any history of heavy alcohol use, street drugs, or overusing prescription medications before starting. The safeguards are structural: exact doses, as-needed not reflexive use, the 7-to-10-day checkpoint, and a taper to stop. Used that way under your own prescriber, it is a tool; the problems come from dose creep.
I heard people do things in their sleep on these drugs. True?
Documented and on the label: some people taking sleep medicines got out of bed and drove, prepared and ate food, had sex, or made phone calls while partially asleep - usually remembering nothing afterward. If you find out you have done anything like that, call your doctor right away; the drug changes or stops at that point. It is uncommon, and it is exactly the kind of thing a partner or housemate spots first.
Can I have a glass of wine with temazepam?
Ask your doctor before any alcohol - MedlinePlus says alcohol can make the side effects worse, and the realistic read is stronger sedation, more breathing suppression, and higher odds of the sleep-behavior problem. The honest answer during a temazepam stretch is that the wine waits. Alcohol history is also part of the habit-forming risk screen, so your prescriber already needs the full picture.