Tiletamine

Tiletamine is a dissociative anesthetic and pharmacologically classified as an NMDA receptor antagonist.[1] It is related chemically to ketamine.[2] Tiletamine hydrochloride exists as odorless white crystals.

Tiletamine
Clinical data
AHFS/Drugs.comInternational Drug Names
Routes of
administration		IV, IM, SC, Other
ATC code
  • none
Legal status
Legal status
Pharmacokinetic data
MetabolismLiver
ExcretionKidneys
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
CompTox Dashboard (EPA)
ECHA InfoCard100.034.559
Chemical and physical data
FormulaC12H17NOS
Molar mass223.33 g·mol−1
3D model (JSmol)
 NY (what is this?)  (verify)

It is used in veterinary medicine in the combination product Telazol (tiletamine/zolazepam, 50 mg/ml of each in 5 ml vial) as an injectable anesthetic for use in cats and dogs.[3][4][5] It is sometimes used in combination with xylazine (Rompun) to tranquilize large mammals such as polar bears[6] and wood bison.[7] Telazol is the only commercially available tiletamine product in the United States. It is contraindicated in patients of an ASA score of III or greater and in animals with CNS signs, hyperthyroidism, cardiac disease, pancreatic or renal disease, pregnancy, glaucoma, or penetrating eye injuries.[3]

Recreational use of telazol has been documented.[8] Animal studies have also shown that tiletamine produces rewarding and reinforcing effects.[9] Tiletamine products are classified as Schedule III controlled substances in the United States.[10]

References
  1. Klockgether, Thomas; Turski, Lechoslaw; Schwarz, Michael; Sontag, Karl-Heinz; Lehmann, John (1 October 1988). "Paradoxical convulsant action of a novel non-competitiveN-methyl-d-aspartate (NMDA) antagonist, tiletamine". Brain Research. 461 (2): 343–348. doi:10.1016/0006-8993(88)90265-X. PMID 2846121.
  2. CID 26533 from PubChem
  3. "Tiletamine entry at Drugs.com". Retrieved 5 January 2012.
  4. Lin, H. C; Thurmon, J. C; Benson, G. J; Tranquilli, W. J (1993). "Telazol--a review of its pharmacology and use in veterinary medicine". Journal of veterinary pharmacology and therapeutics. 16 (4): 383–418. PMID 8126757.
  5. NIH Tiletamine entry in Toxnet Page last reviewed 1/21/2009
  6. Cattet, M.R.; Caulkett, N.A.; Lunn, N.J. (July 2003). "Anesthesia of polar bears using xylazine-zolazepam-tiletamine or zolazepam-tiletamine". Journal of Wildlife Diseases. 39 (3): 655–64. doi:10.7589/0090-3558-39.3.655. PMID 14567228.
  7. Caulkett, N.A.; Cattet, M.R.; Cantwell, S.; Cool, N.; Olsen, W. (January 2000). "Anesthesia of wood bison with medetomidine-zolazepam/tiletamine and xylazine-zolazepam/tiletamine combinations". The Canadian Veterinary Journal. 41 (1): 49–53. PMC 1476335. PMID 10642872.
  8. Quail, MT; Weimersheimer, P; Woolf, AD; Magnani, B (2001). "Abuse of telazol: an animal tranquilizer". Journal of Toxicology: Clinical Toxicology. 39 (4): 399–402. doi:10.1081/clt-100105161. PMID 11527235.
  9. de la Peña JB, Lee HC, de la Peña IC, Woo TS, Yoon SY, Lee HL, Han JS, Lee JI, Cho YJ, Shin CY, Cheong JH (2012). "Rewarding and reinforcing effects of the NMDA receptor antagonist-benzodiazepine combination, Zoletil®: difference between acute and repeated exposure". Behavioural Brain Research. 233 (2): 434–42. doi:10.1016/j.bbr.2012.05.038. PMID 22659394.
  10. "Lists of: Scheduling Actions, Controlled Substances, Regulated Chemicals" (PDF). Drug Enforcement Administration. Retrieved 5 January 2012.
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