Parents/Guardians: The following websites from Help.Org provide up-to-date information on addiction, drug effects, drug background information, and various rehab/treatment options for heroin, methamphetamine, and alcohol addiction:
https://www.help.org/guide-to-heroin-addiction/
https://www.help.org/guide-to-heroin-rehab/
https://www.help.org/guide-to-methamphetamine-addiction/
https://www.help.org/guide-to-methamphetamine-rehab/
https://www.help.org/guide-to-alcohol-addiction/