#
Phenobarbital Tablets
  • Professionals
  • FDA PI

Phenobarbital Tablets

Dosage form: tablet
Drug classes:Barbiturate anticonvulsants, Barbiturates

Medically reviewed by Drugs.com. Last updated on Jul 1, 2020.

Disclaimer: This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA. For further information about unapproved drugs, click here.

Phenobarbital Tablets Description

The barbiturates are nonselective central nervous system (CNS) depressants that are primarily used as sedative-hypnotics. In subhypnotic doses, they are also used as anticonvulsants. The barbiturates and their sodium salts are subject to control under the Federal Controlled Substances Act.

Phenobarbital is a barbituric acid derivative and occurs as white, odorless, small crystals or crystalline powder that is very slightly soluble in water; soluble in alcohol, in ether, and in solutions of fixed alkali hydroxides and carbonates; sparingly soluble in chloroform. Phenobarbital is 5-ethyl-5- phenylbarbituric acid. Phenobarbital is a substituted pyrimidine derivative in which the b..