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WW 458 (Phenobarbital 100 mg)

Pill imprint WW 458 has been identified as Phenobarbital 100 mg.

Phenobarbital is used in the treatment of sedation; seizures; hyperbilirubinemia; insomnia and belongs to the drug classes barbiturate anticonvulsants, barbiturates. There is positive evidence of human fetal risk during pregnancy. Phenobarbital 100 mg is classified as a Schedule 4 controlled substance under the Controlled Substance Act (CSA).

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