Benzocaine
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Benzocaine
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Benzocaine is an ester local anesthetic commonly used topically or in cough drops.
Uses
It is available in oral preparations (lozenges, throat spray), topical preparations (commonly for oral ulcers) or otic preparations.
Contraindications
Absolute contraindications
Precautions
Pharmacology
Pharmacodynamics
Mechanism of action
Adverse effects
- Risk of methemoglobinemia
Pharmacokinetics
- Metabolized by esters
- pKa 3.5
Chemistry and formulation
- Ester local anesthetic
- Formed from ethanol and PABA