Serious side effects of Tylenol 8 Hour Along with its needed effects, acetaminophen (the active ingredient contained inTylenol 8 Hour) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. ...
8HR Muscle Aches-Pain oral 650 mg tablet Non-Aspirin Extra Strength oral 500 mg tablet Non-Aspirin Extra Strength oral 500 mg tablet Non-Aspirin Extra Strength oral 500 mg tablet Arthritis Pain Reliever oral 650 mg tablet Tactinal oral