DetoxLocal Periodic Table of Drugs
https://www.detoxlocal.com/resources/periodic-table-drug-addiction/

Full guide to Opiate and Heroin Withdrawal

https://www.detoxlocal.com/opiates/heroin-detox/


Another awesome opiate guide we have
https://www.opiates.net/

(Harm Reduction) Needle Exchange with over 221 needle exchange programs located nationwide
https://www.detoxlocal.com/needle-exchanges/