the 65 dogs in the study received injections in the subarachnoid space as follows : 6 to 8 ml of bupivacaine ( n = 15 ) , 2-chloroprocaine-ce ( n = 20 ) , low ph normal saline ( ph 3.0 ) ( n = 20 ) , or normal saline ( n = 10 ) .
C0006400
bupivacaine
C0055443
ce