Do you suffer from frequent heartburn? If you get heartburn twice a week or more, Nexium Control 20 mg Gastro-Resistant Tablets can give you 24 hr protection. Just one pill a day will continuously prevent heartburn from recurring and reduce stomach acid at the source to provide relief that lasts all day and all night. Now you can do more than just treat the burning pain of heartburn - you can tackle it straight at the source. Nexium works by reducing the amount of acid produced in your stomach. Its target, Zero heartburn. So you can return your life to normal, with up to 4 out of 5 nights completely heartburn free. Nexium Control is the UK’s No 1 acid reflux medicine for 24-hour heartburn protection. Unlike antacids and alginates that treat the symptoms of heartburn, Nexium Control tackles the cause by targeting acid directly at the source, providing long-lasting protection. 1. Nexium Control is a proton pump inhibitor . It works by reducing the amount of acid produced by your stomach.