Source:http://linkedlifedata.com/resource/umls/id/C0025627
MSH: A quinazoline derivative with hypnotic and sedative properties. It has been withdrawn from the market in many countries because of problems with abuse. (From Martindale, The Extra Pharmacopoeia, 30th ed, p604),NCI: A sedative, hypnotic agent that was used for insomnia, but was taken off of the market, in the U.S., in 1983 due to its high risk of abuse.(NCI)