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A male asked:

Will flexeril (cyclobenzaprine hcl) show up on a drug test? informational purposes

2 doctor answers5 doctors weighed in
Dr. Joy Jackson
Family Medicine 21 years experience
Flexeril (cyclobenzaprine hcl) : Flexeril (cyclobenzaprine hcl) is not a drug that is routinely screened for in standard drug tests. As far as I am aware it will not give a positive screen on a drug test. If anyone else has any other information on this topic please add a comment. I hope this helps.
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Dr. Alan Wartenberg
A Verified Doctoranswered
Addiction Medicine 51 years experience
No: Havent seen any false positives with flexeril, (cyclobenzaprine hcl) it is not an opioid or benzodiazepine.
Created for people with ongoing healthcare needs but benefits everyone.

Similar questions

A 48-year-old member asked:

Cyclobenzaprine HCl will it show up in drug testing?

2 doctor answers2 doctors weighed in
Dr. Rodney Alan
Orthopedic Surgery 23 years experience
Yes: If they are testing for benzodiazepines, this drug will show up. Most basic drug testing panels will test for benzodiazepines. If you inform your doctors of all of your medications, you should be fine. This is a common medication for muscle spasm.
Created for people with ongoing healthcare needs but benefits everyone.
A 35-year-old member asked:

I have not took flexeril (cyclobenzaprine hcl) in four days will it show up in a drug test?

1 doctor answer3 doctors weighed in
Dr. Robert Olsen
Psychiatry 53 years experience
Possibly: The rate of drug elimination from the body is called the half life; it is the time for half of the dosage to be eliminated. After two half lives, only 1/4 of the amount will be present. The half life of cyclobenzaprine ranges fro 8 to 37 hours, and is affected by many other medications however, cyclobenzaprine is not a drug of common abuse, and would not likely show up n a drug abuse screen.
Created for people with ongoing healthcare needs but benefits everyone.
A 50-year-old member asked:

How will I know when flexeril (cyclobenzaprine hcl) kicks in?

1 doctor answer3 doctors weighed in
Dr. Edward Hellman
Orthopedic Surgery 31 years experience
You will know: You will know when it starts working when you start feeling a difference in your symptoms, it also can make you start feeling sleepy as well. Flexeril (cyclobenzaprine hcl) usually will start working 20-30!minutes after you ingest it.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Susan Rhoads
Family Medicine 40 years experience
Dr. Robison is correct. If you took it on a full stomach, it can talk up to an hour or an hour and a half for max effect.
Feb 16, 2016

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Last updated Mar 18, 2019

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