Benzocaine
Benzocaine, a topical compound. Ester-class topical local anesthetic — Na+ channel blocker. OTC oral gels for dental pain, throat lozenges… Transdermal half-life 1 h.
Ester-class topical local anesthetic — Na+ channel blocker. OTC oral gels for dental pain, throat lozenges, condoms. Methemoglobinemia risk (especially in infants/children) is the FDA-warned concern.