Pregnanolone, formerly known as 3a5b-Pregnanolone; Kabi-2213, SKF 6455, Eltanolone, is a cell membrane modulator potentially for the treatment of pain. Pregnanolone is an endogenous neurosteroid that is biosynthesized from progesterone. It is a positive allosteric modulator of the GABAA receptor, as well as a negative allosteric modulator of the glycine receptor, and is known to have sedative, anxiolytic, anesthetic, and anticonvulsant effects. It was investigated for clinical use as a general anesthetic, but produced unwanted side effects such as convulsions on occasion, and for that reason was never marketed. References: Hulin MW, Lawrence MN, Amato RJ, Weed PF, Winsauer PJ. Comparison of dehydroepiandrosterone (DHEA) and pregnanolone with existing pharmacotherapies for alcohol abuse on ethanol- and food-maintained responding in male rats. Alcohol. 2015 Mar;49(2):127-38. doi: 10.1016/j.alcohol.2014.07.024. Epub 2015 Jan 6. PubMed PMID: 25620274; PubMed Central PMCID: PMC4514518.

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CAS：128-20-1