Knowra Analgesic Analgesic An analgesic is a drug or other agent that relieves pain without necessarily causing loss of consciousness. Analgesics act through varied mechanisms, from reducing inflammation to altering pain signaling in the nervous system.
Nociception : The nervous system’s detection and transmission of potentially tissue-damaging stimuli. Analgesics can interrupt nociceptive signals at different points between tissues and brain.
Pain : An unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage. Analgesia reduces this experience without necessarily removing its underlying cause.
Nonsteroidal anti-inflammatory drug : A drug that reduces pain, fever, and inflammation, usually by inhibiting cyclooxygenase enzymes. NSAIDs are widely used for inflammatory and musculoskeletal pain.
Anesthesia : A controlled state that reduces or eliminates sensation, often for medical procedures. Unlike analgesia alone, anesthesia may suppress sensation broadly or include loss of consciousness.
Cyclooxygenase : An enzyme family that produces prostaglandins and other lipid mediators from arachidonic acid. NSAIDs relieve pain partly by inhibiting cyclooxygenase and reducing prostaglandin production.
Nociceptive pain : Pain arising from actual or threatened damage to non-neural tissue and activation of nociceptors. Inflammatory and tissue-injury pain often responds to conventional analgesics.
Paracetamol : A non-opioid analgesic and antipyretic also known as acetaminophen. It is commonly used for mild to moderate pain when anti-inflammatory action is unnecessary.
Sedative : A substance that reduces alertness, agitation, or anxiety, sometimes causing sleepiness. Sedation can accompany some pain treatments but is not itself pain relief.
Opioid receptor : A cell-surface receptor activated by endogenous opioid peptides and opioid drugs. Opioid analgesics act at these receptors to reduce pain signaling and alter its perception.
Neuropathic pain : Pain caused by a lesion or disease of the somatosensory nervous system. Nerve injury can make standard painkillers insufficient, prompting other drug choices.
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