Methods A 14-day multicentre randomised double-blind double-dummy non-inferiority trial compared Gaviscon® (4 × 10 mL/day) and omeprazole (20 mg/day) in patients with 2–6 day heartburn ...

double-dummy design directly comparing one alginate to a PPI with heartburn as the primary clinical endpoint. We therefore performed a trial called "Gaviscon® vs. Omeprazole in symptOmatic ...