My LO was prescribed infant gaviscon last week. She is 4 weeks old and is really unsettled at night, coughing and spitting up her feeds. She looks really uncomfortable.
I was so excited to try the gaviscon thinking it would solve the problem and.....it made it worse!
Could not get her to take the stuff for love nor money! Tried spoon, cup and syringe and before, during and after feeds and made no difference she would spit it out and if she did swallow it at the end of the feed she would projectile vomit everything back up! Argh! We have accepted now that we just have to wait for her to grow out of this phase and try and manage it without medication like raising the head of the cot etc which does seem to be helping.
Hope it works for you though, as lots of people say it does solve the problem!