allonal
/ˈalənl/Pharmacology. Now historical and rare
noun
A sedative and hypnotic drug of the barbiturate class.
- Chemical name: 5-allyl-5-isopropylbarbituric acid; C10H14N2O3.Originally a trademark in the United States and United Kingdom for a drug that also contained pyramidon..
Origin
1920s; earliest use found in Spatula. From all- + -onal.