Nexium control 20mg provides effective, 24hours relief from reflux symptoms such as heartburn and acid reflux.. Nexium control 20mg provides effective, 24hours relief from reflux symptoms such as heartburn and acid reflux. Just one pill a day will continuously prevent heartburn from recurring for 24 hours. Acid reflux medicine that provides heartburn relief all day and all night. It tackles acid production right at the source, provide relief all day and all night
