Analgesia vs. Anesthesia
Marina Crivelli
Lisa Dias-Medeiros
Emilie Yeh
Why We Have Pain, & How We Kill It
Hank talks about pain and how we manage it. The video is more relevant to our topic starting at 3:57 (as it is linked) where he discusses how NSAIDs and opioids reduce our perception of pain.
This page talks about the mechanisms of major classes of analgesic drugs. It also provides insight on the CCAC's view about analgesia on animal models in research as well as the concept of nociception associated with analgesia.
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lisadmedeiros
This article also provides the same information on how analgesic drugs decrease the sensation of pain but also includes information on the mechanisms of specific drugs often seen in veterinary medicine.