How long does street drugs stay in system?

The amount of time drugs will stay in your system varies by:

<code>Your age
Your weight
Your sex
Your physical health
Presence of other drugs in the body
</code>

According to the American Addiction Centers, these are averages from urine tests:

<code>Heroin: 1-3 days in your system
Cocaine: 2-3 days in your system
Marijuana: 1-7 days in your system
Meth: 2-3 days in your system
MDMA: 2-4 days in your system
</code>

Many factors will lead to how long a drug will stay in your system because drugs are so very different from each other, and people are also different. Two people using the same drug may have completely different reactions.