Phenacetin

It is mainly used as antipyretic and analgesic, with slow and lasting effect. It has good curative effect on headache, neuralgia, arthralgia and fever, but weak anti rheumatic and anti-inflammatory effects. For the treatment of cold. If a small amount of chlorpheniramine is added to the above medicine, it can also be made into chlorpheniramine cold tablets, which can be used to treat cold headache, neuralgia, rheumatic pain, etc. Phenacetin itself has no antipyretic and analgesic effect. In the body, paracetamol, or paracetamol, is metabolized and decomposed to produce antipyretic and analgesic effect. In addition, p-aminophenethyl ether was also decomposed. P-aminophenethyl ether not only had no antipyretic and analgesic effect, but also was the main factor of phenacetin side effects.