Naloxone is a drug used to counter the effects of overdosing on opioids such as heroin and morphine. It is marketed under trade names including Narcan, Nalone, and Narcanti.

GoldBamboo

... NALOXONE (Narcan®) reverses effects that are produced by narcotic drugs such as difficult breathing and coma. Narcotics may be used during surgery to help produce anesthesia and relieve pain, and naloxone can reverse these effects after surgery. Naloxone is used to treat cases of narcotic drug overdose. If you are dependent on narcotic drugs, naloxone will cause withdrawal symptoms. Generic naloxone injections are available. ...
Drug Digest - more...

Naloxone Systematic (IUPAC) name 17-allyl-4,5α-epoxy- 3,14-di ...
Wikipedia - [full article]

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