The structure of an aspirin molecule is formulated as C9H8O4, meaning that it has nine carbon atoms, eight hydrogen atoms and four oxygen atoms. There are several chemical names for aspirin, including acetylsalicylic acid and 2-Acetoxybenzoic acid.
The drug is a prototypical analgesic that treats mild and moderate pain. Aspirin may be prescribed as an anti-stroke therapy for people who have had or are at risk of stroke or heart attack, following the narrowing of vessels that supply blood to the heart or brain. It inhibits clotting action in the blood, hence preventing possible blockage of narrow blood vessels by clots.