| Peak 20-30 and trough 5 | |
| Cimetidine, ciprofloxacin, clarithromycin, erythromycin, fluvoxamine, gemfibrozil, isoniazid, ketoconazole, zileuton | |
| Gram negative, inhibits bacterial cell wall synthesis, alternative for PCN allergy, renally dose | |
| Lovastatin, simvastatin, atorvastatin |