reflux

could anybody give there exeriences with reflux.

our son pulls a grimising face and brings up clear fluid (acid)is taking ranitidine(zantac) was on 1.3mls twice a day. when he brings the acid up he goes vacant. he had all his anti epileptic drugs increases and still did this, increased his ranitidine to 1.5mls they stoped for a few weeks then started again. they increased his anti epilesy drugs and introduced another phenobarb, clobazam and sodium valproate(new). he's not smiled now for 10 weeks. we increased his ranitidine to 1.8mls, taken him off his phenobarb. has anybody experienced something like this or experienced any of these drugs as our specialist in england dont know much about this horrible disease.