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    API refers to the pharmaceutical raw materials used in the production of various types of preparations. It is the active ingredient in the preparations. It is prepared by chemical synthesis, plant extraction, or biotechnology for various powders, crystals, and extracts used as medicinal products. Substances that the patient cannot take directly. Complete definition of API in ICH Q7A: It is intended to be used for any substance or mixture of substances in the manufacture of drugs, and when used in pharmaceuticals, it becomes an active ingredient of drugs.

    Inhibitor Drugs

    Inhibitors drugs are psychotropic drugs, and common ones include alcohol, opium, and barbiturates, which inhibit or reduce the transmission of nerve impulses in the central nervous system, thereby suppressing (slowing) mental and physical activity. "Inhibitor Drugs" on Echemi mainly supplies APIs for inhibitor drugs.

    Nervous System Drugs

    Nervous system drugs mainly include: sedative and hypnotic, antiepileptic and anticonvulsant, anxiolytics, antipsychotics, antidepressants, antimanics drugs, antiparkinson drugs, drug Metabolism in human brain, cholinergic drugs, central stimulant drugs, parkinson's disease drugs and other nervous system drugs. "Echemi The Nervous System Drugs "list mainly supplies APIs for such drugs.

    Antipyretic Analgesics

    Antipyretic Analgesics refer to drugs that can restore the body temperature of fever patients to normal, but have no effect on the body temperature of normal people. Such drugs also have moderate analgesic effects, but their strength is not as strong as morphine and its synthetic substitutes. Commonly used Antipyretic Analgesics can be divided into salicylic acid, aniline and pyrazolone according to their chemical structure. The "Echemi Antipyretic Analgesics" list mainly supplies APIs for such drugs.
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