I wouldn't advise it, simply because codeine being the narcotic and acetaminophen combining with aspirin can be harmful.
Yes
No. Acetaminophen has no aspirin in it. Acetylsalicylic Acid is aspirin.
No, aspirin is not acetaminophen. Aspirin is acetylsalicylic acid. Acetaminophen is the active ingredient in Tylenol and other preparations.
Negative. They are different chemical compounds.
Aspirin is non steroidal analgesic while Codeine is potent narcotic analgesic