GAR-936, a new glycylcycline, had lower MICs (0.016 to 0.125 µg/ml) for 201 penicillin- and tetracycline-susceptible and -resistant pneumococcal strains than tetracycline ( Journal Articledoi:10.1128/AAC.44.4.958-966.2000 pmid:10722497 Journal Articledoi:10.1128/AAC.44.4.848-852.2000 pmid:10722480