An analgesic (colloquially known as a painkiller) is any member of the diverse group of drugs used to relieve pain (achieve analgesia). Analgesic drugs act in various ways on the peripheral and central nervous systems; they include paracetamol (acetaminophen), the nonsteroidal anti-inflammatory drugs (NSAIDs) such as the salicylates, narcotic drugs such as morphine, synthetic drugs with narcotic properties such as tramadol, and various others. Some other classes of drugs not normally considered analgesics are used to treat neuropathic pain syndromes; these include tricyclic antidepressants and anticonvulsants.
Advancements in terran medical technology have greatly decreased the time needed for an analgesic to take effect, namely almost immediately. Analgesics are part of the equipment of at least some wranglers, a simple touch of a button delivering doses of analgesics into their bloodstream, thus removing any discomfort when near an individual with psionic powers, or in an area with the residue of such energies.
The list of authors can be seen in the page history of Analgesic.
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