loss of consciousness. There are basically two kinds of analgesics: non-narcotics and narcotics. Analgesic drugs: Analgesic drugs act in various ways on the peripheral and central nervous systems; they include paracetamol (para-acetylaminophenol, also known in the US as acetaminophen), the non-steroidal anti-inflammatory drugs (NSAIDs) such as the salicylates , and opioid