Methadone - An opioid used in the maintenance treatment of heroin dependency because it prevents heroin withdrawal symptoms and fulfills the addict's physical need for the drug.

Ice - a slang term for smokeable methamphetamine, has a translucent rock-like appearance and is a highly addictive and toxic amphetamine.

Heroin - highly addictive drug derived from morphine, is obtained from the opium poppy. It is a "downer" that affects the brain's pleasure systems and interferes with its ability to perceive pain. Heroin can be injected into a vein or a muscle; smoked through a water pipe or standard pipe; mixed in a marijuana joint or regular cigarette; inhaled as smoke through a straw or as powder through the nose. Heroin users quickly develop a tolerance for the drug and need more and more to get the same high.