I. Antimycobacterial Drugs Chapter 41 A. Background 1. Mycobacteria 2. _Mycobacterium tuberculosis_ B. Treatment 1. first-line drugs a. isoniazid b. rifampin c. ethambutol d. pyrazinamide 2. second-line drugs C. Resistance II. Antifungal Drugs Chapter 42 A. Background 1. mycoses 2. chitin 3. ergosterol B. Subcutaneous drugs 1. amphotericin B 2. fluconazole a. triazole 3. itracanazole C. Cutaneous mycotic infections a. dermatophytes 1. squalene epoxidase inhibitors a. terbinafine 1) onychomycoses b. butenafine c. tolnaftate 2. grisofulvin 3. nystatin 4. imidazoles a. clotrimazole b. miconazole III. Antiprotozoal Drugs Chapter 43 A. Background B. Metronidazole 1. _Entamoeba histolytica_ 2. _Giardia lamblia_ 3. _Trichomonas vaginalis_ 4. _Clostridium difficile_