CHRIS KNAPTON / SCIENCE PHOTO LIBRARY CHRIS KNAPTON / SCIENCE PHOTO LIBRARY
Aspirin pills. View of several aspirin pills. The pills are scored with a groove so that they can be easily halved for lower doses, such as for children. Aspirin is the common name for the analgesic (painkiller) acetylsalicylic acid. It is used to treat mild pain and can reduce the effects of a fever. It also prevents blood clotting, which can help prevent heart attacks and strokes.
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