Thozalinone (USAN) (brand name Stimsen; former developmental code name CL-39808) is a psychostimulant that has been used as an antidepressant in Europe.[1][2][3][4][5] It has also been trialed as an anorectic.[6] Thozalinone is described as a "dopaminergic stimulant",[7] and likely acts via inducing the release of dopamine and to a minimal extent norepinephrine; similar to analogue pemoline, it is seemingly devoid of abuse potential unlike common psychostimulants that increase catecholamines.[2][8][9]

Clinical data
Other namesTozalinone, Thozalinon
Routes of
ATC code
  • none
Legal status
Legal status
  • In general: ℞ (Prescription only)
CAS Number
PubChem CID
Chemical and physical data
Molar mass204.225 g/mol g·mol−1
3D model (JSmol)
ChiralityRacemic mixture
 NY (what is this?)  (verify)

See also


  1. J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 435–. ISBN 978-1-4757-2085-3.
  2. Greenblatt EN, Osterberg AC (July 1965). "Some pharmacologic properties of thozalinone, a new excitant". Toxicology and Applied Pharmacology. 7 (4): 566–78. doi:10.1016/0041-008X(65)90042-6. PMID 4378772.
  3. Dictionary of organic compounds. London: Chapman & Hall. 1996. ISBN 0-412-54090-8.
  4. Merck index on CD-ROM: Windows. London: Chapman & Hall EPD. 1998. ISBN 0-412-82910-X.
  5. Gallant DM, Bishop MP, Scrignar CB, Hornsby L, Moore B, Inturrisi BB (December 1966). "A double-blind study of thozalinone (C1 39,808) in depressed outpatients". Current Therapeutic Research, Clinical and Experimental. 8 (12): 621–2. PMID 4962734.
  6. Leite AC, Liepen LL, Costa VP (September 1971). "[Clinical trial of Stimsem Thozalinone in the treatment of obese patients]". Revista Brasileira De Medicina (in Portuguese). 28 (9): 475–8. PMID 5139648.
  7. Yen-koo, H. C.; Balazs, T. (2015). "Detection of Dopaminergic Supersensitivity Induced by Neuroleptic Drugs in Mice". Drug and Chemical Toxicology. 3 (2): 237–247. doi:10.3109/01480548009108286. ISSN 0148-0545. PMID 6112126.
  8. Yen-Koo HC, Balazs T (1980). "Detection of dopaminergic supersensitivity induced by neuroleptic drugs in mice". Drug and Chemical Toxicology. 3 (2): 237–47. doi:10.3109/01480548009108286. PMID 6112126.
  9. Yen-Koo HC, Davis DA, Balazs T (1985). "Inhibition of dopaminergic agonist-induced gnawing behavior by neuroleptic drugs in mice". Drug and Chemical Toxicology. 8 (6): 495–502. doi:10.3109/01480548509041072. PMID 2868876.

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