Overview
Marc’s aspirin is an over-the-counter nonsteroidal anti-inflammatory drug (NSAID) used primarily to temporarily relieve various types of mild to moderate pain and reduce fever. Each coated tablet contains 325 mg of aspirin.
What is it used for?
This aspirin formulation is used by adults and children 12 years and older to temporarily relieve headaches, muscle pain, toothaches, menstrual pain, minor arthritis pain, and pain caused by colds. It also temporarily reduces fever.
Active ingredients
Aspirin 325 mg
How it works
Aspirin works by inhibiting certain enzymes involved in the production of prostaglandins, which are chemicals in the body that cause pain, inflammation, and fever. By reducing prostaglandin levels, aspirin alleviates pain and lowers fever.
Dosage and administration
Adults and children 12 years and over: Take 1 or 2 tablets every 4 hours, or 3 tablets every 6 hours, not exceeding 12 tablets in 24 hours. Always take with a full glass of water.
Children under 12 years: Consult a doctor before use.
Contraindications
Do not use if you have ever had an allergic reaction to any other pain reliever or fever reducer.
Warnings and precautions
Reye's syndrome risk: Children and teenagers who have or are recovering from chickenpox or flu-like symptoms should not use this aspirin, as it may lead to Reye's syndrome, a rare but serious illness.
Allergy alert: Aspirin may cause severe allergic reactions including hives, facial swelling, shock, and asthma symptoms.
Stomach bleeding warning: Aspirin can cause serious stomach bleeding that may be fatal. The risk is greater if you are age 60 or older, have had stomach ulcers or bleeding problems, take blood thinners or steroids, consume 3 or more alcoholic drinks daily, take other NSAID-containing drugs, or exceed recommended doses or duration.
Do not use if you have ever had an allergic reaction to any other pain reliever or fever reducer.
Ask a doctor before use if you have a history of stomach problems, high blood pressure, heart disease, liver cirrhosis, kidney disease, asthma, or are taking diuretics or prescription drugs for diabetes, gout, or arthritis.
Stop use and seek medical help if you experience signs of stomach bleeding such as fainting, vomiting blood, black or bloody stools, or persistent stomach pain; or if pain worsens or lasts more than 10 days; redness, swelling or fever worsens or lasts more than 3 days; new symptoms appear; or ringing in ears or hearing loss occurs.
If pregnant or breastfeeding, consult a healthcare professional before use. Especially avoid aspirin during the last 3 months of pregnancy unless directed by a doctor.
Side effects
Serious reactions: Severe allergic reactions (hives, facial swelling, shock, asthma/wheezing), signs of stomach bleeding (fainting, vomiting blood, bloody or black stools, persistent stomach pain).
Other possible effects: Ringing in ears or hearing loss may occur with excessive or prolonged use.
Drug interactions
Aspirin's risk of stomach bleeding increases when taken with blood thinners (anticoagulants), steroids, or other NSAIDs like ibuprofen or naproxen. Alcohol consumption of 3 or more drinks daily further increases this risk. Consult your doctor if you are on prescription drugs for diabetes, gout, or arthritis.
Pregnancy and breastfeeding
Pregnancy: Avoid use during the last 3 months of pregnancy unless specifically directed by a doctor due to risks to the unborn child and complications during delivery.
Lactation: Consult a healthcare professional before use while breastfeeding.
Overdose information
In case of overdose, seek immediate medical attention or contact a Poison Control Center at 1-800-222-1222.
Storage
Store between 20°-25°C (68°-77°F) in a dry place. Keep out of reach of children.
Manufacturer(s)
Medical references
- U.S. National Library of Medicine – DailyMed
- Official prescribing information
- Other authoritative medical references, where applicable
References are used to support the medical information presented on this page.
Medical information disclaimer
The information on WikiDrug is provided for educational and informational purposes only. It is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making decisions about medication use.
Last updated November 3, 2026