ca Pharmacist. Always carry Aspirin 81mg with you, it could help save a life. Do not give to children/teenagers less than 18 years of age who have chicken pox or cold/flu symptoms before a doctor is consulted aboutReye’s Syndrome, a rare but serious illness reported to be associated with ASA.Directions: (Adults over 18 years): During a heart attack: Call 911, then, crush or chew 2 – Aspirin 81mg or Aspirin 81mg Quick Chews tablets or 1 – Aspirin Regular Strength325mg tablet/caplet.