PMID- 3304918 OWN - NLM STAT- MEDLINE DCOM- 19871021 LR - 20131121 IS - 0378-6501 (Print) IS - 0378-6501 (Linking) VI - 13 IP - 4 DP - 1987 TI - Susceptibility in vitro of gram-positive aerobe and anaerobe bacteria to ofloxacin. PG - 213-7 AB - Ofloxacin is a new fluoroquinolone derivative active against Gram-positive and Gram-negative bacteria including obligate anaerobes. In this study the in vitro activity of ofloxacin was evaluated against 325 Gram-positive organisms freshly isolated from clinical specimens, in comparison with that of ampicillin, erythromycin, clindamycin and ceftazidime. Susceptibility tests indicated that the MIC90 was 2 mg/l (range 0.25-2) against both methicillin-susceptible (MS) and methicillin-resistant (MR) Staphylococcus aureus. A value of 2 mg/l (range 0.5-4) was also found for all other staphylococci. The MIC of ofloxacin was 8 mg/l for 90% of Streptococcus faecalis (range 1-16), Str. faecium (range 2-8) and members of JK group (range 0.5-16). Propionibacterium acnes strains were all inhibited by 2 mg/l and 90% of Clostridia spp. (range 2-16) by 8 mg/l. Ofloxacin activity compared favourably with that of ampicillin, erythromycin, clindamycin and ceftazidime determined on the same isolates. MBC and time-kill studies indicated that this compound is rapidly bactericidal against enterococci. The great intrinsic activity against MS and MR staphylococci, refractory enterococci and JK bacteria may make ofloxacin a useful adjunct to the therapeutic arsenal. FAU - Debbia, E AU - Debbia E FAU - Mannelli, S AU - Mannelli S FAU - Gianrossi, G AU - Gianrossi G FAU - Schito, G C AU - Schito GC LA - eng PT - Comparative Study PT - Journal Article PL - Switzerland TA - Drugs Exp Clin Res JT - Drugs under experimental and clinical research JID - 7802135 RN - 0 (Anti-Bacterial Agents) RN - 0 (Oxazines) RN - 3U02EL437C (Clindamycin) RN - 63937KV33D (Erythromycin) RN - 7C782967RD (Ampicillin) RN - 9M416Z9QNR (Ceftazidime) RN - A4P49JAZ9H (Ofloxacin) SB - IM MH - Ampicillin/pharmacology MH - Anti-Bacterial Agents/*pharmacology MH - Ceftazidime/pharmacology MH - Clindamycin/pharmacology MH - Erythromycin/pharmacology MH - Gram-Positive Bacteria/*drug effects MH - Humans MH - Microbial Sensitivity Tests MH - Ofloxacin MH - Oxazines/*pharmacology EDAT- 1987/01/01 00:00 MHDA- 1987/01/01 00:01 CRDT- 1987/01/01 00:00 PHST- 1987/01/01 00:00 [pubmed] PHST- 1987/01/01 00:01 [medline] PHST- 1987/01/01 00:00 [entrez] PST - ppublish SO - Drugs Exp Clin Res. 1987;13(4):213-7.