How Long Does Restoril Stay in Your System?

Detection Timetable Depends on Many Variables

Restoril 15 mg
Restoril (temazepam) is used on a short-term basis to treat insomnia. U.S. Drug Enforcement Administration

How long Restoril (temazepam) is detectable in the body depends on many variables, including which kind drug test is being used and the amount of the drug that you have taken. Restoril - also known as benzodiazepine - can be detected for a shorter time with some tests, but can be "visible" for up to three months in other tests.

The timetable for detecting Restoril in the system is also dependent upon each individual's metabolism, body mass, age, hydration level, physical activity, health conditions and other factors, making it almost impossible to determine an exact time Restoril will show up on a drug test.

The following is an estimated range of times, or detection windows, during which Restoril and other drugs in this category of benzodiazepines can be detected by various testing methods:

How Long Will Restoril Show Up in a Urine Test?

Restoril can be detected in a urine sample for 1-6 weeks.

How Long Does Restoril Stay in the Blood?

A blood test for Restoril will detect the drug from 6 to 48 hours.

How Long Is Restoril Detectable in Saliva?

A saliva test for Restoril will detect the drug for 1-10 days.

How Long Does Restoril Stay in the Hair?

Restoril, like many other drugs, can be detected with a hair follicle drug test for up to 90 days.

Restoril Is a Short to Intermediate Acting Benzodiazepine

The amount of time a benzodiazepine remains in your systems depends on whether or not it is an ultra-short, short, intermediate or long-acting benzodiazepine. Ultra-short benzos have a half-life of fewer than 5 hours, while short to intermediate-acting benzodiazepines have a half-life from five to 24 hours.

Long-acting benzos have a half-life exceeding 24 hours.

Restoril (temazepam) is classified as a short to intermediate benzodiazepine.

Interaction With Other Drugs

Restoril (temazepam) is a benzodiazepine which is a central-nervous-system depressant and a controlled substance. It is typically prescribed as a short-term sleeping aid.

When combined with other depressants or combined with alcohol, or taken in large dosages, Restoril can cause a loss of consciousness and respiratory failure.

That's why it is important to know how long Restoril remains in your system so that you do not have any negative drug interactions.

Other drugs that can cause negative interactions with Restoril include antidepressants; antihistamines such as Benadryl; digoxin; and medications for anxiety, mental illness, seizures, or pain; sedatives; other sleeping pills; and tranquilizers.


Always Test Clean. "What Are Drug Detection Times?" Drug Test Facts Accessed June 2015

American Association for Clinical Chemistry "Drugs of Abuse Testing." Lab Tests Online. Revised 2 January 2013.

LabCorp, Inc. "Drugs of Abuse Reference Guide." Accessed March 2013.

U.S. National Library of Medicine. "Temazepam." Drugs, Herbs and Supplements February 2011

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