@annpeters Not as a nightly antacid (it could cause too much constipation if taken in large amounts.) While it helps, high-dosage, long-term use is generally not recommended due to a risk of toxic bismuth buildup in the body. I have terrible GERD. I have a prescription Famotidine for now that I can take at night (when my GERD seems at its worst) and I chew Gaviscon in-between times if I have a heartburn flare-up. Famotidine can cause LC or trigger already existing microscopic colitis, so I'm searching still for something to fight the GERD that will not aggravate my condition.