Methyprylon

Methyprylon is a sedative

Sedative

A sedative is a substance that induces sedation by reducing irritability or excitement.At higher doses it may result in slurred speech, staggering gait, poor judgment, and slow, uncertain reflexes...

 of the piperidinedione

Piperidinedione

Piperidinediones are a derivatives of piperidine with two ketone functional groups. There are six isomers, each of which has a molecular weight of 113.115 and a formula of C₅H₇NO₂...

 derivative family. This medicine was used for treating insomnia

Insomnia

Insomnia is a symptom of any of several sleep disorders, characterized by persistent difficulty falling asleep or staying asleep despite the opportunity. Insomnia is a symptom, not a stand-alone diagnosis or a disease. By definition, insomnia is "difficulty initiating or maintaining sleep, or both"...

, but is now rarely used as it has been replaced by newer drugs with fewer side effects, such as benzodiazepines. Methyprylon was withdrawn from the US market in June 1965 and the Canadian market in September 1990.

Side effects can include: Skin rash, fever, depression, ulcers or sores in mouth or throat, unusual bleeding or bruising, confusion, fast heartbeat, respiratory depression, swelling of feet or lower legs, dizziness, drowsiness, headache, double vision, clumsiness, constipation, diarrhea, nausea, vomiting, unusual weakness