All strains were susceptible to phenoxymethylpenicillin , cephalosporins , erythromycin , azithromycin , clindamycin , vancomycin , doxycycline , and ciprofloxacin but were resistant to trimethoprim-sulfamethoxazole .
Antimicrobial susceptibility of Arcanobacterium haemolyticum. The susceptibilities of 138 clinical isolates of Arcanobacterium haemolyticum to 11 antimicrobial agents were tested. All strains were susceptible to phenoxymethylpenicillin , cephalosporins , erythromycin , azithromycin , clindamycin , vancomycin , doxycycline , and ciprofloxacin but were resistant to trimethoprim-sulfamethoxazole .
### Instruction:
            Given the context about compound efficacy for the given treatment mentioned within the input, mentioned the compounds 
            that can co-occur for the mentioned treatment

            ### Input:
            Antimicrobial susceptibility of Arcanobacterium haemolyticum. The susceptibilities of 138 clinical isolates of Arcanobacterium haemolyticum to 11 antimicrobial agents were tested. All strains were susceptible to phenoxymethylpenicillin , cephalosporins , erythromycin , azithromycin , clindamycin , vancomycin , doxycycline , and ciprofloxacin but were resistant to trimethoprim-sulfamethoxazole .

            ### Response:
            erythromycin, azithromycin, clindamycin, vancomycin, doxycycline, ciprofloxacin
            