Temazepam is a prescription sleep medication used to treat insomnia. Sold under the brand name Restoril, it belongs to the benzodiazepine class of drugs and is intended for short-term use, typically 7 to 10 days. It’s classified as a Schedule IV controlled substance, meaning it carries a recognized risk of dependence but lower than many other controlled drugs.
How Temazepam Treats Insomnia
Temazepam works by amplifying the effects of GABA, a chemical your brain naturally produces to slow down nerve activity. Normally, GABA binds to receptors on brain cells and makes them less excitable. Temazepam increases GABA’s grip on those receptors, essentially turning up the volume on your brain’s own “calm down” signal. The result is reduced mental activity, muscle relaxation, and drowsiness that helps you fall asleep and stay asleep longer.
This makes temazepam effective for two specific sleep problems: difficulty falling asleep (also called sleep latency) and difficulty staying asleep through the night. For people dealing with short-term insomnia triggered by stress, jet lag, schedule changes, or a temporary medical issue, temazepam can restore a more normal sleep pattern while the underlying cause resolves.
Why It’s Only for Short-Term Use
Temazepam is not designed as a long-term sleep solution. Guidelines consistently recommend limiting benzodiazepine use to 2 to 6 weeks. Beyond that window, the medication tends to lose its effectiveness as your brain adjusts to its presence. At the same time, physical and psychological dependence can develop, meaning your body starts to rely on the drug to sleep at all.
Stopping temazepam abruptly after regular use can trigger rebound insomnia, where sleep problems return worse than before. Withdrawal symptoms like anxiety, irritability, and restlessness are also possible. For these reasons, prescribers typically plan a gradual taper rather than a sudden stop if you’ve been taking it for more than a few days.
Typical Doses
The standard adult dose is 15 mg taken shortly before bed. Some people respond well to a lower 7.5 mg dose, particularly for transient insomnia where the main goal is simply falling asleep faster. Others may need up to 30 mg, though higher doses come with a greater risk of side effects.
For adults 65 and older, the recommended starting dose is 7.5 mg. Older adults are significantly more susceptible to oversedation, dizziness, confusion, and falls at higher doses. The same caution applies to people with kidney or liver problems, or chronic lung conditions like COPD, since the body may clear the drug more slowly in these situations.
Common Side Effects
The most frequently reported effects are what you’d expect from a drug that suppresses brain activity: drowsiness that lingers into the next morning, dizziness, and a foggy or sluggish feeling. Some people experience headaches, nausea, or difficulty with coordination.
Next-day grogginess is particularly important to watch for. If you feel impaired the morning after taking temazepam, driving and operating machinery become genuinely dangerous. This hangover effect is more common at higher doses and in older adults.
Less common but more concerning side effects include memory lapses for events that happen after taking the medication, sleepwalking, and other complex behaviors performed while not fully awake (like eating or making phone calls with no memory of doing so). These are rare but well-documented with benzodiazepines as a class.
What You Shouldn’t Combine With Temazepam
Alcohol is the most important substance to avoid. Both alcohol and temazepam slow brain activity, and together they can cause dangerously heavy sedation or suppressed breathing. Opioid pain medications pose the same compounding risk and have been the focus of FDA boxed warnings on benzodiazepine labels.
Other sedating medications, including certain antihistamines, muscle relaxants, and other sleep aids, can intensify temazepam’s effects in ways that feel unpredictable. If you’re taking any medication that makes you drowsy, your prescriber needs to know before adding temazepam.
How Temazepam Compares to Other Sleep Medications
Temazepam sits in the middle of the benzodiazepine family in terms of how long it lasts. It’s slower to kick in than some ultra-short-acting options but doesn’t linger as long as longer-acting benzodiazepines like diazepam (Valium). This profile makes it well suited for people who need help both falling asleep and staying asleep without excessive morning sedation.
Newer non-benzodiazepine sleep medications (sometimes called “Z-drugs”) like zolpidem work on similar brain receptors but are more narrowly targeted. They tend to cause less muscle relaxation and may carry a somewhat lower dependence risk, which is why they’ve largely replaced benzodiazepines as first-line sleep prescriptions. Temazepam remains a useful option when those alternatives aren’t effective or aren’t tolerated, and it’s still widely prescribed.
Dependence and Misuse Risk
As a Schedule IV controlled substance, temazepam has a recognized potential for misuse. The DEA lists it alongside other well-known benzodiazepines like alprazolam (Xanax), lorazepam (Ativan), and diazepam (Valium) in this category. The risk of dependence increases with higher doses, longer use, and a personal or family history of substance use problems.
Physical dependence can develop in as little as a few weeks of nightly use. This doesn’t mean everyone who takes temazepam for a week will become dependent, but it does mean the drug should be used at the lowest effective dose for the shortest time that makes sense. If insomnia persists beyond the initial treatment window, that’s a signal to explore other approaches like cognitive behavioral therapy for insomnia (CBT-I), which has strong evidence as a long-term solution without the risks of medication.