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Cinchocaine 3D ball-and-stick.png
Clinical data
AHFS/ International Drug Names
Routes of
topical, intravenous (for animal euthanasia)
ATC code
Legal status
Legal status
CAS Number
PubChem CID
ECHA InfoCard 100.001.484 Edit this at Wikidata
Chemical and physical data
Formula C20H29N3O2
Molar mass 343.463 g/mol
3D model (JSmol)

Cinchocaine (INN/BAN) or dibucaine (USAN) is an amide local anesthetic. Among the most potent and toxic of the long-acting local anesthetics, current use of cinchocaine is generally restricted to spinal and topical anesthesia.[1][2] It is sold under the brand names Cincain, Nupercainal, Nupercaine and Sovcaine.

Medical use[edit]

Cinchocaine is the active ingredient in some topical hemorrhoid creams such as Proctosedyl. It is also a component of the veterinary drug Somulose, used for euthanasia of horses and cattle.

Physical properties[edit]

Cinchocaine is relatively insoluble in alkaline aqueous solutions.

See also[edit]


  1. ^ Martindale, The Extra Pharmacopoeia, 30th ed, p1006
  2. ^ Dibucaine

Further reading[edit]

  • Abdel-Ghani N, Youssef A, Awady M (2005). "Cinchocaine hydrochloride determination by atomic absorption spectrometry and spectrophotometry". Farmaco. 60 (5): 419–24. doi:10.1016/j.farmac.2005.03.001. PMID 15910814.
  • Souto-Padron T, Lima AP, de Oliveira Ribeiro R (2006). "Effects of dibucaine on the endocytic/exocytic pathways in Trypanosoma cruzi". Parasitol Res. 99 (4): 317–20. doi:10.1007/s00436-006-0192-1. PMID 16612626.
  • Nounou M, El-Khordagui L, Khalafallah N (2005). "Effect of various formulation variables on the encapsulation and stability of dibucaine base in multilamellar vesicles". Acta Pol Pharm. 62 (5): 369–79. PMID 16459486.
  • Aroti, A.; Leontidis, E. (2001). "Simultaneous Determination of the Ionization Constant and the Solubility of Sparingly Soluble Drug Substances. A Physical Chemistry Experiment". Journal of Chemical Education. 78 (6): 786–788. doi:10.1021/ed078p786.