USPUSP-NF
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Butalbital and Aspirin Tablets

DEFINITION

Butalbital and Aspirin Tablets contain NLT 90.0% and NMT 110.0% of the labeled amounts of butalbital (C11H16N2O3) and aspirin (C9H8O4).

USP REFERENCE STANDARDS FOR PURCHASE

USP Aspirin RS
USP Butalbital RS
USP Salicylic Acid RS
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