Glyceryl p‐aminobenzoate patch testing in benzocaine‐sensitive subjects

Abstract
Benzocaine-reactive patients were patch tested to two commercial sources of glyceryl p-aminobenzoate containing varying concentrations of benzocaine as a contaminant. Eleven of 20 reacted to the source with approximately 0.3% benzocaine; none reacted to the source with approximately 0.001% benzocaine.

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