Altoclav Dry Syrup is a penicillin-type of antibiotic that helps your body fight infections caused by bacteria. It is used to treat infections of the lungs (e.g., pneumonia), ear, nasal sinus, urinary tract, skin and soft tissue. It will not work for viral infections such as the common cold.Altoclav Dry Syrup contains two different Brands, Amoxycillin and Clavulanic Acid, that work together to kill the bacteria that cause infections. Amoxycillin works by stopping the growth of bacteria. Clavulanic Acid reduces resistance and enhances the activity of Amoxycillin against bacteria.