Antimicrobial | Indication | Example
------ | ------ | ------
Penicillins | Gram-positive infections | Penicillin G, Amoxicillin, Ampicillin
Cephalosporins | Gram-negative and Gram-positive infections | Cefazolin, Ceftriaxone, Cefuroxime
Carbapenems | Severe Gram-negative infections | Imipenem, Meropenem, Ertapenem
Fluoroquinolones | Urinary tract infections, respiratory infections | Ciprofloxacin, Levofloxacin, Moxifloxacin
Macrolides | Respiratory tract infections, sexually transmitted diseases | Erythromycin, Azithromycin, Clarithromycin
Tetracyclines | Acne, Lyme disease, Rocky Mountain spotted fever | Doxycycline, Minocycline, Tetracycline
Aminoglycosides | Severe Gram-negative infections | Gentamicin, Tobramycin, Amikacin
Trimethoprim-sulfamethoxazole | Urinary tract infections, pneumonia | Bactrim, Septra
Isoniazid | Tuberculosis | Isoniazid, Rifampin, Pyrazinamide
Rifampin | Tuberculosis | Rifampin, Isoniazid, Pyrazinamide
Ethambutol | Tuberculosis | Ethambutol, Rifampin, Isoniazid
Pyrazinamide | Tuberculosis | Pyrazinamide, Isoniazid, Rifampin
Vancomycin | Methicillin-resistant Staphylococcus aureus (MRSA) infections | Vancomycin, Teicoplanin
Linezolid | MRSA and other Gram-positive infections | Linezolid
Daptomycin | MRSA and other Gram-positive infections | Daptomycin
Metronidazole | Clostridioides difficile infection, anaerobic infections | Metronidazole, Tinidazole
Clindamycin | Anaerobic infections, respiratory infections, skin infections | Clindamycin, Erythromycin
Viral Infections
Acyclovir | Herpes simplex virus (HSV) infections | Acyclovir, Valacyclovir, Famciclovir
Valacyclovir | HSV and varicella-zoster virus (VZV) infections | Valacyclovir, Acyclovir, Famciclovir
Famciclovir | HSV and VZV infections | Famciclovir, Acyclovir, Valacyclovir
Zidovudine |Human immunodeficiency virus (HIV) | Zidovudine, Lamivudine, Tenofovir
Lamivudine | HIV | Lamivudine, Zidovudine, Tenofovir
Tenofovir | HIV | Tenofovir, Zidovudine, Lamivudine
Fungus Infections
Fluconazole | Candidiasis, cryptococcosis | Fluconazole, Itraconazole, Voriconazole
Itraconazole | Candidiasis, aspergillosis, blastomycosis | Itraconazole, Fluconazole, Voriconazole
Voriconazole | Aspergillosis, candidiasis | Voriconazole, Fluconazole, Itraconazole
Terbinafine | Onychomycosis, tinea infections | Terbinafine, Itraconazole, Fluconazole