Does Flexeril (cyclobenzaprine) show up on a advanced drug test?

Published July 5, 2010

Question by J-Knowitall: Does Flexeril (cyclobenzaprine) show up on a advanced drug test?
Is flexeril a benzo? What does a half life of 8-37 hours mean? I take a drug test every month, how long before I take the test do I have to stop taking cyclobenzaprine? (assuming they test for it which I am unsure of)
I take a drug test that tests for

Cannabinoids (marijuana, hash)
Cocaine (cocaine, crack, benzoylecognine)
Amphetamines (amphetamines, methamphetamines, speed)
Opiates (heroin, opium, codeine, morphine)
Phencyclidine (PCP

and I am unsure if the lab checks the expanded test for

Barbiturates (Phenobarbital, Secobarbitol, Butalbital)
Hydrocodone (Lortab, Vicodin)
Methaqualone (Qualuudes)
Benzodiazepines (Valium, Xanax, Librium, Serax, Rohypnol)
Methadone
Propoxyphene (Darvon compounds)
Ethanol (Alcohol)
MDMA (Ecstacy)

any help would be appreciated.

Best answer:

Answer by mark f
Flexeril is not a benzodiazepine. I don’t think it will show up on a drug test. It is not very addictive. I think it has some abuse potential and you can get some withdrawal effects if you stop taking it suddenly but it is not like heroin or benzos. You should be fine.

Know better? Leave your own answer in the comments!