Methamphetamine can be taken in a variety of ways including smoking, injecting, snorting, swallowing, or inserting the drug into the anus.
LSD is listed as a Schedule I drug under the Controlled Substances Act.
Salvia can be purchased without showing any form of identification, making it available to millions of young people across the U.S. who are legally buying the drug.
In the case of heroin, craving and relapse can occur weeks and months after withdrawal symptoms are long gone.