Top Definition
A Canadian analgesic with 325mg Acetaminophen, 15mg Caffeine, and 8mg Codeine. Available without a prescription, but one must ask for it at the pharmacy counter. A generic version is also available.
Tylenol 1 and its Aspirin counterpart, AC&C, are popular purchases for Americans visiting Canada

Tylenol 1 is NOT to be confused with the much-stronger Tylenol 3, available only by prescription in both the USA and Canada.
by DFJD May 09, 2006

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