: Potent drugs such as cocaine , methamphetamine (meth), and crack cocaine that significantly alter brain chemistry and heart rate.
: Highly addictive substances like heroin and fentanyl , which carry a high risk of fatal overdose.
: Ecstasy (MDMA) and GHB are often classified as hard drugs in certain legal frameworks, such as in the Netherlands . Risks and Impact NA White Booklet: Narcotics Anonymous
