Hey all, not sure if I'm posting in the right area, I'm sorry if I'm not!!

I need help.....DS (four months) has been on Zantac syrup to treat his silent reflux but he's not getting any relief anymore so I took him to the doctor today and he's prescribed Nexium granules. 10mg. Has anyone had any experience with it? I have NO idea how to give it to him, 15ml of water mixed with a sachet through a syringe seems like an awful lot....I struggled giving him 1.5ml of zantac through a syringe (he hates it)...

If anyone has any experience with it and can tell me how they gave it to them I would GREATLY appreciate any help.

Thank you!