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The Active Ingredient Acetylsalicic Acid
How Does Acetylsalicic Acid Work?
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Some 2.500 years ago already, Hippokrates, the forefather of all medical doctors, successfully treated pain and fever with the bitter extract of the willow bark. This extract contained a large portion of salicylic acid, the prototype of today's Aspirin®. Since then, salicylic acid and the later further developed acetylsalicylic acid has been successfully used in pain therapy.

However, the exact mechanism of acetylsalicylic acid's action was only discovered some thirty years ago by Sir John Vane. Acetylsalicylic acid inhibits the synthesis of endogenous substances, prostaglandins, which
can, amongst others, activate and increase painful states. At the same time it was discovered, that prostaglandins' synthesis in blood platelets (thrombocytes) is inhibited by acetylsalicylic acid, by which a conglomeration of blood platelets (thrombocyte aggregation) is prevented.

With this, the spectrum for application was extended to prophylactic treatment of heart attacks and strokes as well as therapy thereof. Here, intake of the low acetylsalicylic acid dosage Aspirin® Protect is advised as a preventative measure against re-infarction, thrombosis and after coronary surgery. More recent studies even point to a potentially prophylactic effect in the emergence of cancer.