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51 31 V Pill - yellow round

Pill with imprint 51 31 V is Yellow, Round and has been identified as Primidone 250 mg. It is supplied by Qualitest Pharmaceuticals Inc.

Primidone is used in the treatment of Epilepsy; Seizures and belongs to the drug class barbiturate anticonvulsants. FDA has not classified the drug for risk during pregnancy. Primidone 250 mg is not a controlled substance under the Controlled Substances Act (CSA).

Images for 51 31 V

Primidone 250 mg 51 31 V
Primidone 250 mg 51 31 V


51 31 V
250 mg
Prescription only
Drug Class
Barbiturate anticonvulsants
Pregnancy Category
N - Not classified
CSA Schedule
Not a controlled drug
Labeler / Supplier
Qualitest Pharmaceuticals Inc.
National Drug Code (NDC)
00603-5372 (Discontinued)
Inactive Ingredients
hypromelloses, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, sodium starch glycolate type A potato, magnesium silicate, D&C Yellow No. 10, FD&C Yellow No. 5

Note: Inactive ingredients may vary.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.