Zentel Syrup is effective against a range of parasitic worm infections in children. It restrains the worms from absorbing the body's essential nutrients, causing them to lose their energy and leading to their eventual death. The dead worms are then removed from your child’s body through the stool. Give this medicine to your child by mouth, preferably with a fat-containing food such as milk. This will help your child’s body absorb this medicine better. In case your child vomits within 30 minutes of taking Zentel Syrup, give the same dose again. The duration of the treatment depends on the type of worm your child is infected with. Usually, it is given as a single dose. Your child’s doctor may prescribe repeating this dose after two weeks to prevent re-infection. However, some specific types of infections may require you to give this medicine to your child for a few days to weeks. In such a case, you must give your child this medicine for the exact prescribed number of days because stopping this medicine too soon may cause re-infection. Nausea, vomiting, dizziness, headache, abdominal pain, loss of appetite, hair fall, mild fever, and sore throat are some of the common yet temporary side effects of this medicine. Rarely, it may cause bleeding which is a serious side effect of this medicine. Make sure to report to your child’s doctor if the side effects persist or become bothersome or if your child experiences bleeding. Before taking this medicine, let the doctor know if your child has had any previous episodes of medicine allergy, seizures, liver impairment, kidney malfunction, stomach problem, or blood disorder. This information is critical for dose alterations and for planning your child’s overall treatment.