What are the three categories of analgesics?

The three categories of analgesics are correctly identified as narcotics, non-narcotics, and NSAIDs.

Narcotics, also known as opioids, are powerful pain-relieving medications that work by binding to specific receptors in the brain and spinal cord, effectively blocking pain signals. These medications are generally used for moderate to severe pain and have the potential for dependence and misuse.

Non-narcotics refer to a broad range of over-the-counter medications that can alleviate mild to moderate pain. These often include acetaminophen and non-steroidal anti-inflammatory drugs (NSAIDs), which are distinct from narcotics in their mechanism and potential for side effects.

NSAIDs specifically target inflammation, reduce pain, and lower fever. They work by inhibiting enzymes involved in the inflammatory process, thus providing relief from conditions such as arthritis or muscle pain.

The other options do not accurately define the main categories of analgesics. Prescriptive and over-the-counter classifications refer more to how medications are acquired rather than their pharmacological properties. Topical, oral, and injectable options describe forms of medication delivery rather than types of analgesics. Lastly, local, regional, and systemic refer to methods of anesthetic administration rather than analgesic classes. Each of these categoriz