Adult dosage:
To treat pain or fever in adults, the recommended dose is 325 mg to 650 mg every 4 to 6 hours as needed. The maximum daily dose is 4,000 mg, unless otherwise directed by your doctor.
For adults with conditions caused by inflammation such as rheumatoid arthritis,the usual dose is 975 mg 4 to 6 times daily on a regular basis. Sometimes, higher doses may be used.
To treat migraine headache pain, the recommended adult dose is 1,000 mg at the onset of pain or symptoms.
To prevent a first nonfatal heart attack, TIA, a second heart attack, or a second stroke, the usual dose for adults is 80 mg to 325 mg once daily, depending on your doctor's instructions.
During a heart attack, the recommended ASA dose is 160 mg to 162.5 mg chewed or crushed. As soon as you suspect you are having a heart attack, call an ambulance and take the recommended ASA dose, providing you have no allergies or other conditions or factors that would indicate ASA is not right for you.
To prevent blood clots after total hip replacement surgery, the recommended dose is 650 mg twice a day started one day before surgery and continued for 14 days after surgery unless otherwise directed by your doctor.
For rheumatic fever, the usual dose of ASA is 80 mg per kilogram of body weight per day in divided doses.
Children's dosage:
This medication is not recommended to be used by children, teenagers, or young adults to treat fever (see the section, "Are there any other precautions or warnings for this medication?"). However, if recommended by a doctor in other circumstances such as to treat pain, the recommended dose is 10 mg to 15 mg per kilogram of body weight every 6 hours as needed to a maximum of 2,400 mg per day (ask your doctor or pharmacist to give you the correct dose if you are unsure).
When used as an anti-inflammatory, the recommended dose is 60 mg to 125 mg per kilogram of body weight daily in 4 to 6 divided doses.
Because ASA can cause stomach