Acetaminophen CAS#103-90-2

Acetaminophen CAS#103-90-2

Acetaminophen is an analgesic and antipyretic compound. Unlike many NSAIDs, which inhibit both COX-1 and COX-2, early studies suggested that acetaminophen is a poor inhibitor of both isoforms. However, it does inhibit COX-2 by 83% and COX-1 by 56% in human blood ex vivo, albeit at a high 1,000 mg dose, with IC50 values of 25.8 and 113.7 μM, respectively. Acetaminophen is enzymatically and non-enzymatically converted to several reactive metabolites that contribute to adverse or indirect effects, including liver injury. At toxic doses, the acetaminophen metabolite N-acetyl-4-benzoquinone imine (NAPQI; ) depletes glutathione reserves in the liver, leading to an accumulation of NAPQI and subsequent hepatocyte necrosis. Acetaminophen decreases glutathione levels and reduces glutathione peroxidase activity in mice when administered at a dose of 250 mg/kg and induces ferroptotic cell death in primary mouse hepatocytes, an effect that can be blocked by the ferroptosis inhibitor ferrostatin-1 . Acetaminophen has analgesic and antipyretic properties in animal models.

Product Application of Acetaminophen CAS#103-90-2

Usage
This product is antipyretic and analgesic whose international nonproprietary name is Paracetamol. It is the most common non anti-inflammatory analgesia-antipyretic drugs without anti inflammatory and anti rheumatism action. Its antipyretic effect is similar to aspirin, but analgesic effect is weak. It is the best of breed of acetanilid drugs. The product is especially suitable for patients who cannot use carboxylic acids drugs. It is used for cold and toothache. Acetaminophen is also used as organic synthesis intermediates, stabilizer of hydrogen peroxide, photographic chemicals.
Dosage   
1. Oral (1) Paracetamol tablets or paracetamol capsules: adults take 300～600mg at a time and 3～4 times a day according to the need. The daily dosage should not be greater than 2g. Defervescence treatment is generally less than 3 days and the administration of pain relief lasts less than 10 days. Children take 10～15mg/kg every 4～ 6 hours. The dosage of children under the age of 12 does not exceed 5 times a day, a five-day course at most. This product should not be taken for a long time.
2. Dispersible tablets: When take tablets, disperse them in warm water dispersion. The commonly used amount of children is 10～15mg/kg every 4～ 6 hours. The dosage of children under the age of 12 does not exceed 5 times a day, a five-day course at most. Children under 3 years old cut back on the amount.

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