the patients in group 1 were premedicated with a single dose of penicillin-v ( phenoxymethylpenicillin ) , those in group 2 with an antisialogogue ( methylscopolamine nitrate ) , and those in group 3 with an antifibrinolytic agent ( tranexamic acid ) .
C0030842
penicillin
C0030840
phenoxymethylpenicillin