What is the drug of choice for the prevention and treatment of Pneumocystis jirovecii pneumonia (PCP) in immunocompromised patients?
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Correct answer: Sulfamethoxazole-Trimethoprim
TMP-SMX is the drug of choice for Pneumocystis jirovecii pneumonia, used both for acute treatment and for long-term prophylaxis in HIV/AIDS and other immunosuppressed patients. Clindamycin plus primaquine and atovaquone are alternatives reserved for patients who cannot tolerate it.
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