regurgitation is a common phenomenon which may persit for a certain no of months to years. check these things to avoid regurgitation 1. make the food more solid by reducing the liquidity of food 2. give small  but frequent feeding tat is give adequate rest between the feed 3. he is past the 6m of age but still give him adequate time to burp any swallowed air 4. dont feed him in a rush 5. introduction of complimentary feeding shud be gradual for more information u can contact a pediatrician medication wise u can start him on drop domstal ( assuming 7to 9 kg weight) 5drops before feeding maximum three times a day