antipyrine

drug

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June 18, 2026

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Antipyrine is a drug that was formerly widely used as an analgesic and antipyretic. It is a crystalline compound with the molecular formula C₁₁H₁₂N₂O. While effective, it has largely been replaced in oral use by substances considered less toxic, such as aspirin. Acetopyrine is a combination of aspirin and antipyrine, also used for pain relief and fever reduction. The term "antipyrine" itself originated as a trademark.12

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Ludwig Knorr
…a German chemist who discovered antipyrine.
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…a German chemist who discovered antipyrine.
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pyrazole
Among them are: antipyrine, used as an analgesic and febrifuge; tartrazine, most commonly used as a yellow dye for food; phenylbutazone (Butazolidin), an anti-inflammatory drug used in treatment of arthritis; and a series of dyes used as sensitizing agents in colour photography.
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Among them are: antipyrine, used as an analgesic and febrifuge; tartrazine, most commonly used as a yellow dye for food; phenylbutazone (Butazolidin), an anti-inflammatory drug used in treatment of arthritis; and a series of dyes used as sensitizing agents in colour photography.
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