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How does pentamidine treat pneumocystis pneumonia (PCP)?

Pentamidine is used to treat and prevent pneumocystis pneumonia (PCP). This is a serious and life-threatening form of pneumonia caused by a yeast-like fungus. While this fungus is often found in the lungs of healthy individuals, a compromised immune system provides an opportunity for the fungus to cause a lung infection. Individuals with cancer, HIV/AIDS, organ or bone marrow transplants or who frequently use corticosteroids are at greater risk for PCP. Pentamidine kills the fungus causing PCP. Daily pentamidine injections treat PCP infections. Pentamidine also is administered monthly with a nebulizer inhaler to prevent PCP in individuals with a compromised immune system.

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