This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
Prophylactic antifungal drug used in HIV patients: 
Select and explain. 
A. Itraconazole, B. Posaconazole, C. Terconazole, D. Voriconazole
A: Itraconazole
Answer: A: Itraconazole 
Explanation: A i.e. ItraconazoleRef: Harrison's Principles of Internal Medicine, 19th edition, page 1252Explanation:Prophylactic Antifungal for Opportunistic Infections in HIV PatientsFluconazole 400 mg daily:For Coccidiodes immitis when CD4 count <250.For Cryptococcus neoformans when CD4 count <100.Itraconazole 200 mg daily:For Histoplasma capsulatum when CD4 count <150.For Penicillium marneffi CD4 count <100.