I thought it would be handy to have this as a sticky since Zantac is one of those meds that has to be frequently adjusted as your baby grows. I like to always double check to make sure the doctor has prescribed the right dose for my child! Why is Zantac syrup (elixir) used in infants? Zantac is used in babies with acid reflux (gastroesophageal reflux disease or gerd) - read more. It acts by stopping the acid that is causing the burning of the lower esophagus, which leads to the pain and discomfort seen in babies with gerd. Active Duodenal Ulcer: The current recommended adult oral dosage of ZANTAC for duodenal ulcer is 150 mg twice daily. An alternative dosage of 300 mg once daily after the evening meal or at bedtime can be used for patients in whom dosing convenience is important. The Full Story. If you are treating your newborn baby with ranitidine (Zantac ®) for heartburn, you are not alone. In fact, gastroesophageal reflux (GER), also called heartburn, acid reflux or indigestion, is extremely common in infants and children. Gastroesophageal Reflux in Infants and Children. Ranitidine (Zantac) 1 to 2 mg per kg per dose, two to three times daily. Headaches and malaise. Metoclopramide (Reglan) 0.1 mg per kg per dose. At 2 months he was diagosed with silent reflux and put on Zantac. He did very well for 1 week. He had his 2month shots and then spiraled out of control. Medscape - Peptic ulcer disease, GERD-specific dosing for Zantac, Zantac 150 Maximum Strength (ranitidine), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. Generic zantac 75, buy zantac for babies, can i take two zantac 150 while pregnant, zantac dosing infants, zantac tab 150 mg Two prescription forms of Zantac have been approved to treat ulcers, GERD, and erosive esophagitis in children as young as one month old. The dosing for infants is based on factors such as the infant's weight and the condition being treated. -Both once or 2 times a day oral dosing regimens were shown to be effective in inhibiting gastric acid secretion. -Injectable formulations do not require dilution when given as an IM injection. -Intermittent IV bolus injections should be diluted up to 2.5 mg/mL and injected at a rate of up to 4 mL/min.