Proxymetacaine

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Proxymetacaine
Proxymetacaine structure.svg
Clinical data
AHFS/Drugs.com International Drug Names
Pregnancy
category
  • US: C (Risk not ruled out)
Routes of
administration
Topical (eye drops)
ATC code
Pharmacokinetic data
Metabolism Plasma
Identifiers
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEMBL
ECHA InfoCard 100.007.169
Chemical and physical data
Formula C16H26N2O3
Molar mass 294.389 g/mol
3D model (Jmol)
  (verify)

Proxymetacaine (INN) or proparacaine (USAN) is a topical anesthetic drug of the aminoester group.

Clinical pharmacology[edit]

Indications and usage[edit]

Proxymetacaine hydrochloride ophthalmic solution (eye drops) is indicated for procedures such as tonometry, gonioscopy, removal of foreign bodies, or other similar procedures requiring topical anesthesia of the cornea and conjunctiva

Warnings[edit]

Proxymetacaine is for topical ophthalmic use only, and it is specifically not intended for injection. Prolonged use of this or any other topical ocular anesthetic may produce permanent corneal opacification with accompanying visual loss.

Mechanism of action[edit]

Proxymetacaine is believed to act as an antagonist on voltage-gated sodium channels to affect the permeability of neuronal membranes; how this inhibits pain sensations and the exact mechanism of action of proxymetacaine are, however, unknown.

How supplied[edit]

Proxymetacaine is available as its hydrochloride salt in ophthalmic solutions at a concentration of 0.5%. Although it is no longer on patent, it is still marketed under the trade names Alcaine, Ak-Taine, and others. Proparacaine 0.5% is marketed as Poencaina by Poen Laboratories.