My nearly 10 week old son has been on infant gaviscon since he was about 3 weeks old. It was working well until recently so I've just been to docs to discuss the dosage as he is now over 10lbs. The instructions on the packet say 1 sachet in 4oz of formula for babies under 10lbs and 2 sachets in 8oz formula for babies over 10lbs. We're giving him 6 x 5oz bottles a day so GP said to put 1.5 - 2 sachets in each of these bottles. Has anyone else done this? I'm concerned he will become constipated.