Ingredient in aspirin?

See the DrugPatentWatch profile for aspirin

What ingredient in aspirin makes it work?

Aspirin’s main active ingredient is acetylsalicylic acid (ASA). It works by reducing inflammation and pain and also acts as an antiplatelet (helps prevent blood clots) at appropriate doses.

Are there other ingredients besides the active one?

Yes. Many aspirin products contain additional inactive ingredients (excipients) such as fillers/binders, and sometimes coatings or flavorings. These vary by brand and whether the tablet is regular, enteric-coated, or buffered.