The aspirin story - from willow to wonder drug.

The story of the discovery of aspirin stretches back more than 3500 years to when bark from the willow tree was used as a pain reliever and antipyretic. It involves an Oxfordshire clergyman, scientists at a German dye manufacturer, a Nobel Prize-winning discovery and a series of pivotal clinical trials. Aspirin is now the most commonly used drug in the world. Its role in preventing cardiovascular and cerebrovascular disease has been revolutionary and one of the biggest pharmaceutical success stories of the last century.

The preventive and therapeutic impact of antiplatelet agents: past and present.

Already more than two thousands years ago the Greek physician Hippocrates (V-IV century B.C.) used the extracts of the willow bark to fight fever. At the end of the eighteen hundreds the German chemist Felix Hoffmann obtained acetylsalicylic acid in stable and pure form, and from then on Aspirin (where A is the abbreviation of acetyl and Spir stands for Spirsaure, the German name of salicylic acid) has had enormous diffusion. In 1953 Lawrence Craven reported that he had successfully prescribed aspirin to hundreds of adult male patients for the non-specific prophylaxis of coronary thrombosis. Aspirin is now one of the most well-known drugs in the world, and in the last decades a large body of scientific evidence has appeared with regard to the preventive and therapeutic effects of aspirin and those of other antiplatelet agents. In fact, antiplatelet agents constitute a cornerstone in current pharmacological treatment and prophylaxis. Among the most interesting recent and beneficial areas of impact of aspirin and of other antiplatelet drugs, there are those of stroke and of coronary artery disease, and today targeted pharmacological and non-pharmacological interventions should be carefully combined to deal, preventively and therapeutically, with the cardiovascular epidemic.

[Aspirin throughout the ages: a historical review]. / L'aspirine à travers les siècles: rappel historique.

Even at the beginning of the next millennium, aspirin will still offer surprises. Its relatively young pharmacological history compares with the early use of salicylate-containing plants since antiquity. The Assyrians and the Egyptians were aware of the analgesic effects of a decoction of myrtle or willow leaves for joint pains. Hippocrates recommended chewing willow leaves for analgesia in childbirth and the Reverend Edward Stones is acknowledged as the first person to scientifically define the beneficial antipyretic effects of willow bark. At the beginning of the 19th century salicin was extracted from willow bark and purified. Although a French chemist, Charles Gerhardt, was the first to synthesize aspirin in a crude form, the compound was ignored, and later studied by Felix Hoffmann. He reportedly tested the rediscovered agent on himself and on his father, who suffered from chronic arthritis--a legend was born and Bayer Laboratories rose to the heights of the pharmacological world. First used for its potent analgesic, antipyretic and anti-inflammatory properties, aspirin was successfully used as an antithrombotic agent. Sir John Vane elucidated aspirin's active mechanism as an inhibitor of prostaglandin synthetase and received the Nobel Price in Medicine for this work in 1982. Two isoform of cyclooxygenase (COX-1 and COX-2) have now been identified, each possessing similar activities, but differing in characteristic tissue expression. The cox enzyme is now a target of drug interventions against the inflammatory process. After two centuries of evaluation, aspirin remains topical, and new therapeutic indications are increasingly being studied.