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Pharmacology – Research Paper – mhaskins Search Essays Sign up Sign in Contact us Tweet Index /Science Pharmacology According to López-Muñoz et al., (2011) early barbiturates were used as anticonvulsants, sedatives, and hypnotics. The first therapeutically active barbiturates (barbital, malonal, and gardenal) were introduced into clinical practice in 1904, a time when anxiety was not.