Marijuana is often seen as a relatively mild substance, but for those who use it heavily or over a long period, stopping can bring a various surprising challenges. Quitting and withdrawal yourself ...

Medically reviewed by Mary Choy, PharmD Key Takeaways THC detection times vary by test type, lasting up to 12 hours in blood, 24-48 hours in saliva, up to 30 days in urine (on the longer side with ...