a qualitative test of the ability of antibiotic-resistant pneumococci to inactivate penicillin , oxacillin , cephalothin , cefoxitin , chloramphenicol , tetracycline , minocycline , erythromycin , clindamycin , streptomycin , gentamicin , and cotrimoxazole revealed that only chloramphenicol was degraded .
C0030842
penicillin
C0029983
oxacillin