Despite the frequent use of lidocaine as an anesthetic and its ... balsam of Peru 25% (2 cases), dibucaine 2.5% (1 case), and benzocaine 5% (1 case). Patch tests with lidocaine dilutions (in ...

Pertinent negative reactions to the amides dibucaine 2.5% and prilocaine 2.5% and to the esters benzocaine 5% and tetracaine 1% were observed. Intradermal test results with lidocaine 1% ...