Hello, Protonix is a proton pump inhibitor, drugs used in the treatment of peptic ulcer. This drug is more effective in erosive esophagitis than in non erosive reflux disease (GERD) & that s why it was not effective for you. Protonix (Pantoprazole) is generally well tolerated. But in 6% of individuals it can result in irritability, headache, dizziness & lack of sleep. Nexium (Esomeprazole) also belongs to the same group with good efficacy & healing rate in erosive esophagitis. Gaviscon is an antacid. It contains sodium alginate, magnesium trisilicate & magnesium hydroxide. Sodium alginate is a food additive. Also found to be useful in esophagitis. Magnesium salts present in Gaviscon is a smooth muscle relaxant & that is the reason for reduced movement of the gall bladder. Also Nexium & Naviscon when taken together has been reported to accentuate this problem. Since your gall bladder movement is slowed by Gaviscon, you should stop taking Gaviscon.