Butalbital, Aspirin, Caffeine, and Codeine Phosphate Capsules

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DEFINITION

Butalbital, Aspirin, Caffeine, and Codeine Phosphate Capsules contain NLT 90.0% and NMT 110.0% of the labeled amounts of butalbital (C₁₁H₁₆N₂O₃), aspirin (C₉H₈O₄), caffeine (C₈H₁₀N₄O₂), and codeine phosphate (C₁₈H₂₁NO₃·H₃PO₄·½H₂O).

USP REFERENCE STANDARDS FOR PURCHASE

USP Aspirin RS
USP Butalbital RS
USP Caffeine RS
USP Codeine Phosphate RS
USP Salicylic Acid RS

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