2-Chloroprocaine combined with bupivacaine.
D000765:Anesthesia, Conduction; D000818:Animals; D002045:Bupivacaine; D004357:Drug Synergism; D011343:Procaine / Q000031:analogs & derivatives*; D051381:Rats; D013997:Time Factors
D011343:Procaine; D002045:Bupivacaine