Atovaquone is a medication that interferes with the reproduction of protozoa (single-cell organisms) that can cause disease in the body. Atovaquone is used to treat or prevent pneumonia caused by a fungal infection called Pneumocystitis carinii (also called Pneumocystis jiroveci). Atovaquone may also be used for other purposes not listed in this medication guide.
Mepron can be described as a medication that affects the reproduction process of single cell organisms known as protozoa. This process treats and prevents pneumonia. It is an anti-infective or anti-protozoa medication that is effective in preventing the growth of cells that may cause this disease.