I took a 5mg percocet roughly 60-90 days ago for knee pain. would 1 pill show on a hair test? i heard it would take sustained use to generate a positive reaction not just a single use of 1 pill?

Opioids can generally be detected by a hair drug test for up to three months, or 90 days, after a person’s last use. However, highly unlikely that a single 5mg tablet of percocet would be detectable. The data that states the 90 day period is in chronic opioid users.

Technically, hair testing can reveal use of opiates up to 90 days, but 1 pill will most likely not even show up. Hair tests detect regular use or abuse of drugs.