ChemSpider 34980845
Chemical and physical data
Formula C16H23N3
Molar mass 257.373 g/mol
3D model (Jmol) Interactive image

E-55888 is a drug developed by Esteve, which acts as a potent and selective full agonist at the 5HT7 serotonin receptor, and is used for investigating the role of 5-HT7 receptors in the perception of pain. When administered by itself, E-55888 is anti-hyperalgesic but not analgesic, but when administered alongside morphine, E-55888 was found to significantly increase the analgesic effects.[1][2]

See also


  1. Brenchat A, Romero L, García M, Pujol M, Burgueño J, Torrens A, Hamon M, Baeyens JM, Buschmann H, Zamanillo D, Vela JM (February 2009). "5-HT7 receptor activation inhibits mechanical hypersensitivity secondary to capsaicin sensitization in mice". Pain. 141 (3): 239–47. doi:10.1016/j.pain.2008.11.009. PMID 19118950.
  2. Brenchat A, Ejarque M, Zamanillo D, Vela JM, Romero L (August 2011). "Potentiation of Morphine Analgesia by Adjuvant Activation of 5-HT(7) Receptors". Journal of Pharmacological Sciences. 116 (4): 388–91. doi:10.1254/jphs.11039sc. PMID 21778664.
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