Indication |
Used as a local (ophthalmic) anesthetic. |
Pharmacodynamics |
Proparacaine stabilizes the neuronal membrane by inhibiting the
ionic fluxes required for the initiation and conduction of impulses
thereby effecting local anesthetic action. More specifically,
proparacaine appears to bind or antagonize the function of voltage gated
sodium channels. |
Mechanism of action |
The exact mechanism whereby proparacaine and other local
anesthetics influence the permeability of the cell membrane is unknown;
however, several studies indicate that local anesthetics may limit
sodium ion permeability through the lipid layer of the nerve cell
membrane. Proparacaine may alter epithelial sodium channels through
interaction with channel protein residues. This limitation prevents the
fundamental change necessary for the generation of the action potential. |
Absorption |
Not Available |
Volume of distribution |
Not Available |
Protein binding |
Not Available |
Metabolism |
Plasma |
Route of elimination |
Not Available |
Half life |
Not Available |
Clearance |
Not Available |
Toxicity |
Not Available |