Class | Indications | Examples
------- | -------- | --------
Penicillins | Gram-positive bacteria, some Gram-negative bacteria | Penicillin, amoxicillin, cefazolin
Cephalosporins | Gram-positive and Gram-negative bacteria | Cefotaxime, ceftriaxone, cefazolin
Macrolides | Gram-positive bacteria, atypical bacteria | Erythromycin, azithromycin, clarithromycin
Lincosamides | Gram-positive bacteria | Clindamycin, lincomycin
Quinolones | Gram-negative bacteria, urinary tract infections | Ciprofloxacin, levofloxacin, moxifloxacin
Aminoglycosides | Serious Gram-negative infections | Gentamicin, tobramycin, amikacin
Tetracyclines | Gram-positive and Gram-negative bacteria, atypical bacteria | Doxycycline, minocycline, tetracycline
Sulfonamides | Urinary tract infections | Trimethoprim-sulfamethoxazole, sulfamethoxazole-trimethoprim
Nitrofurans | Urinary tract infections | Nitrofurantoin, furazolidone
Polymyxins | Serious Gram-negative infections | Polymyxin B, polymyxin E
Vancomycin | Methicillin-resistant Staphylococcus aureus (MRSA) | Vancomycin
Daptomycin | MRSA, Gram-positive bacteria | Daptomycin
Linezolid | MRSA, Gram-positive bacteria | Linezolid
Tigecycline | Multidrug-resistant Gram-negative bacteria | Tigecycline
Carbapenems | Serious Gram-negative infections | Imipenem, meropenem, ertapenem
Polymyxins | Serious Gram-negative infections | Colistin, polymyxin B
Liposomal Amphotericin B | Invasive fungal infections | Liposomal amphotericin B