Emtrim Suspension is used to treat certain infections such as urinary tract infections, middle ear infection (acute otitis media) in children, intestinal infection (shigellosis), serious lung infection in people with the weakened immune system (pneumocystis carinii pneumonia), infection of the digestive tract (traveler’s diarrhea in adults). This medicine is also used to treat worsening conditions of the inflamed lining of bronchial tubes in the lungs. It is a prescription medicine. This medicine works by blocking the formation of tetrahydrofolic acid which is essential for the growth of bacteria. This medicine helps by preventing the growth of bacteria. Emtrim is also used to prevent & treat infection caused by a parasite (toxoplasmosis) and lung infection caused by the fungus (Pneumocystis jiroveci pneumonitis).