Minaxolone ( CCI-12923) is a neuroactive steroid which was developed as a general anesthetic but was withdrawn before registration due to toxicity seen with long-term administration in rats, and hence was never marketed. (1996). 9780412466304, CRC Press. . ISBN 9780412466304 (1999). 9780702021671, W.B. Saunders. . ISBN 9780702021671 (2025). 9780323037075, Elsevier Health Sciences. ISBN 9780323037075 It is a positive allosteric modulator of the GABAA receptor, (2025). 9780123668462, Academic Press. ISBN 9780123668462 as well as, less potently, a positive allosteric modulator of the glycine receptor.