
All medicines may cause side effects, but many people have no, or minor,
side effects. When used in small doses, no COMMON
side effects have been reported with Tylenol. Seek medical attention right away if any of these SEVERE side effects occur when using Tylenol:
"Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine or pale stools; unusual fatigue; yellowing of the skin or eyes.