Monocef O 50 syrup contains Cefpodoxime, which is an antibiotic. It is only effective against bacterial infections and will not treat a cough caused by viral infections like the common cold or flu, which are the most common causes of coughs in children. Using antibiotics unnecessarily can cause side effects like stomach upset or diarrhea and contributes to antibiotic resistance. You should only use this medicine if it has been specifically prescribed by a pediatrician after diagnosing a bacterial infection. Please consult your doctor for the right treatment.