OTC
Painkiller / Blood Thinner (NSAID — Non-Steroidal Anti-Inflammatory Drug and Antiplatelet)
Acetylsalicylic Acid
Last reviewed April 2026
Who is this for?
What is this drug?
Acetylsalicylic acid (commonly known as Aspirin) is a painkiller and blood thinner that works by reducing substances in the body that cause pain, swelling, and fever, and by preventing blood cells from clumping together to form dangerous clots.
What is it used for?
Headachebody painfeverjoint paintoothacheprevention of heart attackprevention of strokemild arthritis pain
Available Over The Counter
Available at pharmacies without a prescription. Rules may vary by country.
Quick Interaction Check
Is Acetylsalicylic safe to take with another drug?
Check with multiple drugs →