1-(2-Phenylethyl)-4-phenyl-4-acetoxypiperidine (PEPAP) is a synthetic analogue of meperidine. It is sold as a "synthetic heroin."

Alphameprodine is an opioid analgesic classified by the United States Drug Enforcement Administration under Schedule I of illegal substances. The stereoisomer betameprodine is similarly classified, however alphameprodine is more widely used (both are referred…

Anileridine is a synthetic opioid and strong analgesic medication. It is a narcotic pain reliever used to treat moderate to severe pain. Narcotic analgesics act in the central nervous system (CNS) to relieve pain. Some of their side effects are also caused by…

Betameprodine is an opioid analgesic classified by the United States Drug Enforcement Administration under Schedule I of illegal substances. The stereoisomer alphameprodine is similarly classified, and was more widely used (both are referred to as Meprodine).…

An opioid analgesic chemically related to and with an action resembling that of meperidine, but more rapid in onset and of shorter duration. It has been used in obstetrics, as pre-operative medication, for minor surgical procedures, and for dental procedures.…

Desmethylprodine, a derivative of meperidine, is an opioid analgesic with the potency of morphine. It has been listed as a Schedule I controlled drug in the United States, and thus is not used clinically. It is known to be a designer drug, synthesized in 1977…

Difenoxin is a 4-phenylpiperidine which is closely related to the opioid analgesic meperidine. Difenoxin alone is a USA Schedule I controlled drug, as it may be habit forming. However, it is listed as a Schedule IV controlled drug if combined with atropine, w…

A meperidine congener used as an antidiarrheal, usually in combination with atropine. At high doses, it acts like morphine. Its unesterified metabolite difenoxin has similar properties and is used similarly. It has little or no analgesic activity. This medica…

Ketorolac is a Non-steroidal anti-inflammatory drug (NSAID) and is commercially available as an oral tablet, injectable, nasal spray and as an ophthalmic solution.[L6358][L6508][L11055][L3674][L11070] It's analgesic properties make it a useful pain manage…

A narcotic analgesic that can be used for the relief of most types of moderate to severe pain, including postoperative pain and the pain of labor. Prolonged use may lead to dependence of the morphine type; withdrawal symptoms appear more rapidly than with mor…

Morphine, the main alkaloid of opium, was first obtained from poppy seeds in 1805.[A176035] It is a potent analgesic, though its use is limited due to tolerance, withdrawal, and the risk of abuse.[A176050] Morphine is still routinely used today, though there …