Suggest Ways To Manage Side Effects Of Potassium Citrate

I have distal tubular renal acidios. I also have ankolyosing spondylitis. I was recently changed from potassium citrate 30 mg twice a day to effervescent potassium citrate 25 mg 3 times a day. I'm having trouble with nasuea & vomiting. I have tried eating before, during, & after taking it. Is there anything else I can do to help with the side effects or anything else that I can do?