there were no detectable concentrations of penicillin in the csf after administration of benzathine penicillin 2.4 megaunits , benzathine penicillin 7.2 megaunits , procaine penicillin in aluminium monostearate ( pam ) 12 megaunits , or aqueous procaine penicillin g 2.4 megaunits .
C0030842
penicillin
C0030829
benzathine penicillin