Do not chew.
ca Pharmacist. Do not use if you are allergic to: salicylates, acetylsalicylic acid (ASA), if you have: an ulcer, a bleeding problem, bloody or black stool. For children under 3 years, consult a physician. Stop use and ask a doctor if you have: symptoms of upset stomach that worsen, come back or last for more than two weeks such as: heartburn, indigestion, nausea, any hearing loss, ringing or buzzing in the ears, diarrhea that persists for more than 2 days, worsens or that is accompanied by a fever.