| phenobarbital | <chemical> A barbiturate used as a sedative and an anticonvulsant. It was used as an anti-anxiety agent but has been supplanted by benzodiazepines for that purpose. It may also be useful in the treatment of neonatal hyperbilirubinaemia and in the symptomatic treatment of opiate withdrawal in mothers and infants. Pharmacological action: anticonvulsants, gaba modulators, sedatives, barbiturate. Chemical name: 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-phenyl- (12 Dec 1998) |
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| phenobarbital elixir | A palatable, coloured hydroalcoholic (12-15% alcohol) mixture containing 20 mg of phenobarbital per 5 ml (teaspoonful); useful in administering the drug to persons who have difficulty swallowing tablets; used as an anticonvulsant and sedative. (05 Mar 2000) |
| phenobarbitol | <drug> A sedating medication used to control seizures. (31 Dec 1997) |