How long will drugs stay within your body?

How long will drugs stay within your body?
It depends on the drug, how long you took it, and how much.
Depends on what kind.Which one u discussion bout?
Well recreational drugs, take a month for marijuana and a couple days for the harder drugs. For prescription drugs you hold to see what the half-life is and that will tell you.. Usually anywhere from 4 - 12 hours...but it could be more/less.
30+ days depending on the drug