Clinical effect not specified
Source: DDInter
Local Anesthetic · Anesthesia
Procaine is an ester-type local anesthetic that blocks voltage-gated sodium channels in nerve fibers, preventing action potential generation and propagation. As an ester, it is rapidly hydrolyzed by plasma cholinesterases to para-aminobenzoic acid (PABA) and diethylaminoethanol, giving it the shortest duration of action among injectable local anesthetics. The PABA metabolite can antagonize the antibacterial activity of sulfonamides and is responsible for the higher incidence of allergic reactions compared to amide-type anesthetics.
Clinical effect not specified
Source: DDInter
Clinical effect not specified
Source: DDInter
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Sources: KD Tripathi 7e, Goodman & Gilman 14e, BNF·Verified: 2026-05-13 · House clinical team