Gastric problems means whether he is having an acidity problem or he is having cont vomiting or loose motion or having bloating or burping?
According all these symptoms are due to ur pachak agni has decreased...with medicine u have to take increase it...
Next Steps
Take Chitrakadi vati 2tab three times a day
Hingvashtaka churna mix pippalimula churna and take with cows ghee before starting your meal..
Drink luke warm water whole day
and drink chaass 2 to 3 times a day...
after one week tell me the result then we have make little changes in meeicine...