About

Aspirin is a medicine used to reduce pain, fever, and inflammation. It belongs to a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs) and also acts as an antiplatelet to prevent blood clots.

Aspirin is commonly prescribed for:

• Relieving mild to moderate pain (headache, toothache, muscle pain)
• Reducing fever
• Decreasing inflammation in conditions like arthritis
• Preventing heart attacks and strokes in people at risk
• Reducing risk of blood clot formation after certain surgeries

Aspirin is available in:

• Tablets (e.g., 75 mg, 100 mg, 300 mg, 500 mg)
• Effervescent tablets
• Chewable tablets
• Powder or soluble forms

How and When to Use It

Take aspirin exactly as prescribed by your doctor.

Dosage: The dose depends on your condition — low doses (75–100 mg) are used to prevent blood clots, while higher doses (300–500 mg) are for pain or inflammation.

Take tablets with a full glass of water. If upset stomach occurs, take with food or milk.

Do not crush or chew enteric-coated tablets unless directed.

Do not stop taking aspirin suddenly if it was prescribed for heart or blood vessel protection without consulting your doctor.

Contraindications

Do not take aspirin if you have:

• Allergy to aspirin or other NSAIDs
• Active bleeding or bleeding disorders
• Peptic ulcers or severe stomach problems
• Asthma triggered by NSAIDs
• Severe liver or kidney disease

Side Effects

Like all medicines, aspirin can cause side effects, although not everyone experiences them.

Common side effects:

• Stomach upset or heartburn
• Nausea or vomiting
• Easy bruising
• Minor bleeding (nosebleeds, gums)

Serious side effects — seek medical attention immediately:

• Severe or prolonged bleeding
• Black or bloody stools
• Severe stomach pain
• Allergic reactions (rash, swelling, difficulty breathing)

Contact your doctor before surgery or dental procedures, as aspirin can increase bleeding risk.

Pregnancy, Breastfeeding & Fertility

Low-dose aspirin is sometimes prescribed during pregnancy for specific conditions, but higher doses should be avoided.

Aspirin is not usually recommended while breastfeeding in high doses; low-dose use may be discussed with your doctor.

Aspirin does not usually affect fertility in men or women.

Interactions With Other Medications

Some medicines can increase the risk of bleeding or affect how aspirin works. Inform your doctor if you take:

• Other NSAIDs (e.g., ibuprofen, naproxen)
• Anticoagulants (e.g., warfarin, apixaban)
• Antiplatelet drugs (e.g., clopidogrel)
• Certain corticosteroids
• Herbal supplements like ginkgo or garlic

Frequently Asked Questions