Reviewed by the HeyPsych Medical Review Board
Board-certified psychiatrists and mental health professionals
Clinical summary for Flurazepam (Dalmane): Flurazepam can knock insomnia down fast, but it can also leave you foggy the next day—and it’s not a casual med. If you mix it with alcohol or opioids, breathing can slow enough to kill you. If you take it nightly, dependence can build and stopping suddenly can be dangerous. Think: short-term, lowest dose, bedtime only, and a real plan for getting off it.
This is a benzo sleep med, so experiences tend to cluster into a few predictable buckets:
Sleepier fast (same night)
"It didn’t feel subtle. I got sleepy and I stayed sleepy."
Flurazepam can feel fast up front, but it’s the long tail that defines it. The parent drug comes on quickly, and then an active metabolite keeps the sedative effect hanging around—sometimes into the next day (or longer).
Flurazepam is used for insomnia—trouble falling asleep, staying asleep, or waking up too early. It’s a benzodiazepine sleep medication, generally meant for short-term use when safer treatments haven’t worked or aren’t available.
It’s taken at bedtime, right before you get into bed. A common starting dose is 15 mg at bedtime as needed, and some people may increase to 30 mg at bedtime if needed and tolerated. Do not take it earlier in the evening and stay up—memory issues and risky behaviors are more likely if you do.
Many people feel sedation within about 30–60 minutes. It can help the same night, but the bigger issue is that effects may linger into the next day.
Because it’s effectively long-acting. Even though the parent drug clears relatively quickly, it converts to an active metabolite that can stick around for days—especially with repeated nightly use or in older adults. That increases morning fog, slowed reaction time, and accident risk.
No. Alcohol plus flurazepam is a high-risk combination that can cause severe sedation, blackouts, dangerous behaviors, and breathing suppression. This is a hard stop interaction.
This is one of the most dangerous combinations in medicine. Benzodiazepines plus opioids can cause profound sedation, respiratory depression, coma, and death. If there’s truly no alternative, dosing should be minimal and monitoring should be close—but in most cases, the goal is to avoid combining them.
It can be. Like other benzodiazepines, flurazepam carries risk for misuse, dependence, and addiction—especially with higher doses, longer use, or a history of substance use. Regular nightly use increases the odds of tolerance and dependence.
If you’ve been taking it regularly, don’t stop suddenly. A common approach is reducing the dose by about 25% every 1–2 weeks until you reach the lowest available dose, then stopping. Because capsules are 15 mg and 30 mg, taper steps often use 15 mg decreases. People on longer-term therapy often need a slower plan and CBT-I support.
Older adults are more sensitive to benzodiazepines and clear long-acting agents more slowly. That means more confusion, more falls, more delirium risk, and higher crash risk. Flurazepam’s long-lasting metabolite makes these problems more likely.
Pregnancy is a contraindication in labeling, and late-pregnancy benzodiazepine exposure can cause neonatal sedation or withdrawal. Breastfeeding is generally not recommended by the manufacturer due to the long half-life and potential infant sedation/withdrawal risk. If exposure happens, clinicians often recommend specialized counseling and monitoring.
That’s a signal to reassess. Persistent insomnia can be driven by depression, anxiety, PTSD, substances, circadian rhythm problems, sleep apnea, pain, medications, or stress patterns. If sleep hasn’t meaningfully improved after 7–10 days, the plan should shift toward identifying the driver and using CBT-I or safer long-term strategies.
This medication information is for educational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider before starting, stopping, or changing any medication. Never take medication without a prescription from a licensed healthcare provider.
This information is for educational purposes. Always consult with a qualified healthcare provider before starting any new treatment.