WATSON 540 is
Drug/Strength/Manufacturer:
Acetaminophen 500mg /
Hydrocodone Bitartrate 10mg
Generic
Lortab 10
WATSON 503 is
Drug/Strength/Manufacturer: Acetaminophen 650mg / Hydrocodone Bitartrate 10mg
Generic Lorcet Plus
Both have the same amount of hydrocodone, and both are schedule III controlled substances, the 503 just has some more apap.
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