Medically reviewed by Femi Aremu, PharmD Key Takeaways A urine test can detect THC for up to 30 days after use.THC is detectable in blood for the shortest time, up to 12 hours, but can stay longer in ...

The legal landscape around marijuana is rapidly changing. Several decades ago, when I was in college, it was a regular social event to toke up and then go to the theater and watch Reefer Madness, a ...