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Function and Efficacy

It is a compound antipyretic analgesic. Among them, aminopyrine and phenacetin can inhibit the synthesis and release of prostaglandins in the hypothalamus, restore the normal responsiveness of the receptor neurons in the temperature regulation center, and have an antipyretic effect; at the same time, it also has an analgesic effect by inhibiting the synthesis of prostaglandins. Aminopyrine can also inhibit the synthesis and release of prostaglandins in local inflammatory tissues, stabilize lysosomal enzymes, and affect the phagocytic function of phagocytes to play an anti-inflammatory role. Caffeine is a central nervous system stimulant that can excite the cerebral cortex, increase sensitivity to the outside world, and constrict cerebral blood vessels, thereby enhancing the effect of the first two drugs in relieving headaches. Phenobarbital has sedative, hypnotic, and anticonvulsant effects, which can enhance the analgesic effect of aminopyrine and phenacetin, and prevent convulsions caused by fever.

Ingredients

This product is a compound preparation, and its components are: each tablet contains 150mg of aminopyrine, 150mg of phenacetin, 50mg of caffeine, and 15mg of phenobarbital

Name Description Content CAS NO. Manufacturer
PhenacetinIngredients

It inhibits the synthesis and release of prostaglandins in the hypothalamus, restores the normal responsiveness of the receptor neurons in the body temperature regulation center, and has an antipyretic effect; it has an analgesic effect by inhibiting the synthesis of prostaglandins, etc.

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62-44-2 7

Appearance

This product is white tablets.

Indication

Used for fever and mild to moderate pain.

Usage and Dosage

Oral administration: 0.3g-0.6g/time, 4 times/day for adults, maximum dose 2g/day, antipyretic treatment course should not exceed 3 days, analgesia should not exceed 10 days. Children: 10mg-15mg/kg per time, once every 4h-6h; children under 12 years old should not take more than 5 times/day, and the course of treatment should not exceed 5 days.

Adverse Reactions

Both aminopyrine and phenacetin contained in this compound have obvious adverse reactions. Taking aminopyrine may cause vomiting, rash, fever, heavy sweating and stomatitis, etc. A few cases may cause neutropenia, aplastic anemia, exudative erythema, exfoliative dermatitis, glans erosion, etc. Long-term use of phenacetin can cause renal papillary necrosis, interstitial nephritis and acute renal failure, and may even induce renal pelvic cancer and bladder cancer, and may also cause drug dependence. Phenacetin also easily causes hemoglobin to form methemoglobin, which reduces the oxygen-carrying capacity of the blood and leads to cyanosis. It can also cause hemolysis, liver damage, and has a certain toxicity to the retina.

Precautions

1. It is contraindicated for those who are allergic to aminopyrine, phenacetin, caffeine or phenobarbital drugs; 2. It is more likely to cause renal damage in the elderly and should be used with caution.

Special Population Medication

Precautions for children: Not yet clear. Precautions for pregnancy and lactation: Not recommended. Precautions for the elderly: Use with caution in the elderly.

Drug Interactions

Not yet clear.

Storage

Seal and store in a dry place.

Packaging Specification

Compound

Validity Period

24 months.

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