Question: how often can i give my baby zantac?
Answer: The typical initial treatment is 2-4 mg/kg of body weight twice per day for four to eight weeks. Do not give your baby more than 300 mg per day. While the ulcers heal, you can give your baby maintenance treatment with Zantac. The dosage is still 2-4 mg/kg, but you'll give it only once per day at bedtime.