Hexylcaine hydrochloride is also known as cyclaine and osmocaine. It is a short acting local anesthetic that acts through inhibition of sodium channels. Patients experience an overdose may present with headache, tinnitus, numbness and tingling around the mouth and tongue, convulsions, inability to breathe, and decreased heart function. Hexylcaine has been discontinued in the US market.



Used as a local anesthetic for surface application, infiltration or nerve block


Hexylcaine is a local ester-class anesthetic. Local anesthetics produce a transient block of nerve conduction by interfering with sodium channels. This effect of the anesthetic interferes with the development of an action potential across the nerve.

Mechanism of action

Hexyl caine acts mainly by inhibiting sodium influx through voltage gated sodium channels in the neuronal cell membrane of peripheral nerves. When the influx of sodium is interrupted, an action potential cannot arise and signal conduction is thus inhibited. The receptor site is thought to be located... Read more


Information currently not available.

Protein binding

Information currently not available.

Volume of distribution

Information currently not available.


Information currently not available.

Half life

Route of elimination

Information currently not available.


Symptoms of anesthetic overdose include headache, tinnitus, circumoral and tongue paresthesias, restlessness, talkativeness, facial twitching, convulsions, respiratory arrest, and cardiac depression

Adverse Effects


Information currently not available.

Food Interactions

    Information currently not available.


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  • Paracetamol(acetaminophen)
  • Paxil(paroxetine)
  • Pamelor(nortriptyline)
  • Panadol(acetaminophen)
  • Patanol(olopatadine ophthalmic)
  • Pataday(olopatadine ophthalmic)
  • Parnate(tranylcypromine)
  • Pazeo(olopatadine ophthalmic)