Ranitidine also come in a once per day tab, go and ask your chemist. I use to take mine about 3pm which would cover me during the worst part of the day and night. I also found tomato based foods, fizzy drinks, citrus and curries made it worse for me. I also suffered alot when waking for a drink of water at night, I would follow that with a slug of mylanta.

Hope you find some relief.