How come Fiorinal is a Schedule 3 (C-III) controlled substance?

Fiorinal is just aspirin, caffeine, and butalbital, so why is it controlled? I've never hear of anyone abusing this before. Fioricet; which is acetaminophen, caffeine, and butalbital; is not a controlled substance. So how come Fiorinal is classified as a controlled substance and Fioricet isn't?





Thanks for your help, please include referrences.How come Fiorinal is a Schedule 3 (C-III) controlled substance?
I think Fioricet is a Class IV--


Good question. I believe the aspirin potentiates the effect of the barbiturate. At least that is what I was told when I asked the same question.How come Fiorinal is a Schedule 3 (C-III) controlled substance?
The FDA schedules combination drugs diff. than abused drugs by themselves. The FDA uses ratios to determine if a combination drug should be scheduled. The ratio for butalbital to APAP is 15:70. The ratio for butalbital to ASA is 15:188. Fiornial exceeds the ratio, Fioricet does not.

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