#painkiller

• Analgesic — A medication, substance, or chemical compound structurally utilized to calm, attenuate, or completely suppress the sensation of pain, without causing loss of consciousness or general sensitivity (unlike anesthetics). Clinically classified into non-opioid analgesics (such as paracetamol or ibuprofen) and opioid or narcotic analgesics (such as morphine), these preparations act either by inhibiting the synthesis of inflammatory mediators at the periphery or by binding to specific receptors in the central nervous system.
• Antalgic — Having the property to calm, diminish, or suppress the sensation of pain; analgesic. As a noun, it denotes any medicinal substance or pharmaceutical preparation administered to block the transmission of pain signals to the central nervous system without causing loss of consciousness.
• Analgesic — A medication or chemical substance used to relieve, mitigate, or suppress the sensation of pain; an analgesic. It acts either peripherally by inhibiting prostaglandin synthesis or centrally by interacting with opioid receptors.
• Antineuralgic — A property of a substance or medication to combat, alleviate, or suppress violent pain localized along the path of a nerve; in a noun sense, it represents a complex analgesic and antipyretic pharmaceutical preparation, widely used for the rapid relief of headaches, dental or intercostal neuralgias, and mild febrile states.
• Antispasmodic — Orthographic variant accepted for antispasmodic; the property of a pharmaceutical compound or plant extract to inhibit increased motility and involuntary contractions in the smooth muscles of hollow organs. As a noun, it represents an active substance frequently prescribed for the rapid relief of acute pain caused by biliary, urinary, or intestinal crises.