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Pb Online, Description, Chemistry, Ingredients - Phenobarbital

DESCRIPTION

PHENOBARBITAL TABLETS, USP

PHENOBARBITAL ELIXIR, USP

Phenobarbital is a barbiturate, nonselective central nervous system depressant which is primarily used as a sedative hypnotic and also as an anticonvulsant in subhypnotic doses.

Phenobarbital Tablets and Elixir are administered orally and are contained in DEA Schedule IV. Barbiturates are substituted pyrimidine derivatives in which the basic structure common to these drugs is barbituric acid, a substance which has no central nervous system (CNS) activity. CNS activity is obtained by substituting alkyl, alkenyl, or aryl groups on the pyrimidine ring.

Chemically Designated: 5-Ethyl -5-phenylbarbituric acid

Molecular Formula: C₁₂H₁₂N₂O₃

Molecular Weight: 232.24

Inactive Ingredients

Oral Tablets — corn starch, lactose (monohydrate), magnesium stearate and sodium starch glycolate

Oral Elixir — ethyl alcohol, glycerin, oil of orange, sucrose, water, FD& C Red #40 and FD& C Blue #1

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