Nexium Control gastro-resistant tablets contain esomeprazole; Always read the label. If you get heartburn more than once a week, Nexium Control can give you up to 24hr protection. Just one pill a day can continuously prevent heartburn from recurring for up to 24 hours. Helping you to return your life to normal, with up to 4 out of 5 nights heartburn free. 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.Nexium Control gastro-resistant tablets contain esomeprazole; Always read the label. If you get heartburn more than once a week, Nexium Control can give you up to 24hr protection. Just one pill a day can continuously prevent heartburn from recurring for up to 24 hours. Helping you to return your life to normal, with up to 4 out of 5 nights heartburn free. 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.