Will imodium help with my gastritis?

Imodium is not typically used for gastritis, commonly used for diarrhea of non infectious causes. Would suggest getting your doc involved for a timely diagnosis and treatment.

If you have gastroenteritis, usually viral nature, Imodium can help slow down diarrhea. It does not treat the gastroenteritis itself. It is still important to maintain adequate hydration. Drink a lot! Good luck.