Opioids How long are heroin and fentanyl detectable in urine?

[Pillsbury_Dope_Boy]

I did some dope yesterday. It may have contained fentanyl. I am staying somewhere that they do random drug tests, which I intend to cheat on.

Assuming I don't use again, how long before I can be confident that I will piss clean?

 

[MsDiz]

3 days or so.

 

[Pillsbury_Dope_Boy]

is it definitely 3 days? or it it possibly detectable (in an at-home drug test) for longer?

i've heard up to a week. but i dont know if that only applies to heavy daily users. i only use like once every 2 weeks, and very little quantity.

 

[MsDiz]

is it definitely 3 days? or it it possibly detectable (in an at-home drug test) for longer?

i've heard up to a week. but i dont know if that only applies to heavy daily users. i only use like once every 2 weeks, and very little quantity.

The reason these questions aren’t allowed is because no one can tell you for certain. Everyone’s metabolism is different. Generally though if you’re not a daily user and only occasional then yeah after 3/4 days you should be fine.

Again, I don’t know your metabolism and you could well fail it. I’d always been inclined to give it 7 days at least.