Tablets, capsules
For mild to moderate everyday pain and inflammation; to reduce fever; to prevent the formation of blood clots, a primary cause of heart attack, stroke, and other circulatory problems; to ease the inflammation, joint pain, and stiffness associated with arthritis.
Nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin inhibit the release of chemicals in the body called prostaglandins, which play a role in inflammation, though it is unknown exactly how they exert their pain-relieving, fever-reducing, and anti-inflammatory effects.
For pain or fever: 325 to 650 mg every 4 hours as needed. For prevention of blood clots: 80 to 100 mg daily or every other day. For arthritis: 3,600 to 5,400 mg daily in divided doses.
Thirty minutes.
For pain relief, up to four hours.
Swallow aspirin with food or a full glass of water to lessen stomach irritation.
Store in a tightly sealed container away from heat and direct light.
For pain and fever, take a missed dose as soon as you remember, then wait four hours for your next dose. For arthritis, take the aspirin as soon as you remember up to two hours late, then return to your regular schedule.
For pain and fever, stop when relief is achieved. For arthritis and blood clotting, consult your doctor about stopping.
Talk to your doctor about the need for medical examinations or laboratory tests if you must take aspirin regularly for a prolonged period.
Gastrointestinal bleeding and irritation are more likely to occur in older persons.
The use of aspirin should not impair your ability to perform such tasks safely.
Alcohol intake should be limited because it increases the risk of stomach irritation and bleeding.
Do not use aspirin during the last three months of pregnancy unless prescribed by your doctor.
Aspirin passes into breast milk. Avoid it or do not nurse.
Do not give aspirin to children under age 16 unless your doctor instructs otherwise, since it may cause a very rare but life-threatening condition known as Reye's syndrome.
Nausea, disorientation, seizures, vomiting, rapid breathing, fever.
Call your doctor, emergency medical services (EMS), or the nearest poison control center immediately.
Consult your doctor before taking aspirin if you currently take a blood pressure medication, a medication for gout, an arthritis drug, an anticoagulant such as warfarin, a diabetes medication, a steroid, or an antiseizure medication.
No known adverse food interactions. Taking aspirin with caffeine-containing foods or beverages may actually enhance the medicine's pain-relieving effects.
Consult your doctor about taking aspirin if you have asthma, a bleeding disorder, congestive heart failure, diabetes mellitus, gout, hemophilia, high blood pressure, kidney disease, liver disease, thyroid disease, or a peptic ulcer.
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