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Analgesia is the loss of sensitivity to pain.
An analgesic is a substance that causes analgesia.
You may be familiar with the term "analgesic" for common pain relievers such as aspirin, ibuprofen, or acetaminophen for example. Each of these common over-the-counter (OTC) drugs are effective pain relievers, but each carries its own set of risks, particularly with long-term use; see Further Reading below to learn more./
Be careful not to confuse pain relievers with anesthetics which are used to block pain and other sensations during surgical procedures.
"Analgesia" may appear as a symptom of exposure in Section 11 (toxicological information) of a Safety Data Sheet. Acute exposure to certain chemicals such as ethyl chloride can induce analgesia among other symptoms. Less commonly, the term "analgesic" may appear in Section 4 (first-aid measures).
Complete or partial insensitivity to pain may sound great, but this presents a serious hazard. Imagine having no sensations of pain in your everyday life -- you might not notice that you have put your hand on a hot stove and suffered third degree burns until you smelled the charred flesh. Ugh!
We have all kinds of safety wall signs at Safety Emporium.
See also: anesthesia, asphyxiant.
Additional definitions from Google and OneLook.
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