Containing antacid to neutralise excess stomach acid rennie peppermint tablets work fast to relieve the symptoms of heartburn and indigestion rennie quickly relieves indigestion heartburn acid indigestion dyspepsia hyperacidity nervous indigestion flatulence upset stomach indigestion during pregnancy and billousness2 tablets to be sucked or chewed as required preferably 1 hour after meals and before bedtime for heartburn an extra 2 tablets may be taken between these times do not ta