Aspirin is an NSAID (non-steroidal anti-inflammatory drug). It has anti-infalammatory, analgesic, antipyretic and antithrombotic activity. It interferes with prostaglandin synthesis by irreversibly inhibiting cyclooxygenase. It was synthesized in 1853, but the drug was not in use until 1899, when it was found to be effective in the arthritis and well tolerated. The name it was coined from the German word for the compound, acetylspirsaure. Because of its greater efficacy and lower cost, it rapidly replaced the natural products in use at that time, and has remained one the most widely employed remedies for over 90 years.