How long weed stays in your system depends on the type of drug test being used and how frequently you use cannabis.

Alcohol only stays in your blood for up to six hours, but certain drug tests can detect alcohol as far as three months after ...

The amount of time marijuana stays in your system can range from one to 90 days, depending on the test you take to measure it. For example, a urine test for marijuana may test positive for up to 30 ...

Humira (adalimumab) is used to treat several autoimmune conditions. The drug typically stays in your system for a few months after your final dose. This article explains how long Humira may remain in ...

Nicotine itself could clear from your body in a few hours, but its byproduct can linger for days or weeks. Most nicotine tests detect cotinine, which can show up in urine, saliva, blood, hair, and ...

After taking prednisone, it may stay in your system for up to about 22 hours. The half-life of prednisone is 3 to 4 hours in an adult. Half-life describes the time it takes your body to get rid of ...