Monocef O CV Dry Syrup belongs to the group of medicines called antibiotics used to treat various bacterial infections such as pharyngitis/tonsillitis (throat infections), otitis media (ear infections), sinusitis (infection of the sinuses), community-acquired pneumonia, gonorrhoea (sexually transmitted disease), anorectal infections in women, skin, and urinary tract infections. Bacterial infections are caused due to the multiplication of harmful bacteria inside or on the body.