#pyramidon

• Amidopyrine — A medicinal compound from the pyrazolone class, historically used as a potent analgesic, antipyretic, and anti-inflammatory agent, chemically known as aminophenazone. Although it possesses high structural efficiency in combating fever and acute pain, its modern clinical use has been severely restricted or banned in most countries due to the documented risk of inducing severe agranulocytosis and the formation of carcinogenic nitrosamines in the stomach.
• Aminophenazone — An organic compound of the pyrazolone class, historically widely used as a drug with potent analgesic, antipyretic, and anti-inflammatory properties (also known as pyramidon). Due to its major structural risk of causing severe agranulocytosis and its carcinogenic potential through the formation of nitrosamines, its clinical use has been banned or severely restricted in modern medicine.