Since I have had PD heartburn has been by my side. I take Maximum Pepcid and watch certain foods. The way I understand it is that our stomach muscles slow down in processing the foods we eat. I just know that Chocolate, tomatoe and sometimes even bread can set it off. I choose not to take a Rx for it, but there are medications the dr can give to your brother to put out the flame....I hate it sometimes....Really though you should have him check with the dr. best of luck!!

Oh how I hate this symptom....I wish sometimes I could take a PIN and pop my tummy!!!!!!!!!!!LOL