These include tramadol (Ultram) and acetaminophen with codeine (Tylenol with codeine).

Drugs available 'over the counter' (without a prescription) include aspirin, acetaminophen, and mild cold and allergy relief medications.

Over-the-counter analgesics (medicines bought without a prescription) include aspirin, acetaminophen, ibuprofen, naproxen sodium, and others.

Other xenobiotic substrates for this enzyme include caffeine, aflatoxin B1, and acetaminophen.

Important substrates for glucuronidation include bilirubin and acetaminophen.

Some examples include acetaminophen (for example, Tylenol) and ibuprofen (for example, Advil).

Combination medicine that includes aspirin, acetaminophen, and caffeine (such as Excedrin).

Over-the-counter medicines may include acetaminophen, ibuprofen, or naproxen sodium.

Other helpful over-the-counter treatments include corticosteroid creams, hemorrhoid creams, acetaminophen, ibuprofen, and aspirin.

These include acetaminophen, such as Tylenol; ibuprofen, such as Advil or Motrin; and aspirin.