What are analgesics ? How are they classified ?

Explanation

Drugs which reduce or abolish pain without causing disturbances of nervous system like impairment of consciousness, mental confusion, incoordination, paralysis etc., are called analgesics. Analgesics are classified as
(i) Non - narcotic (non-addictive) analgesics and .
ii) Narcotic drugs.
Non - Narcotic analgesics : Aspirin and paracetamol belong to this class of analgesics. These drugs relieve pain and have other effects such as reducing fever and preventing platelet coagulation. Narcoticanalgesics: Morphin and many ofits homologues belong to this category. When administered in medicinal doses they relieve pain and produce sleep.