Higher metformin dosages often correlate with a greater likelihood of observing undigested metformin tablets in your stool. This isn’t necessarily cause for alarm; metformin is partially absorbed, and some portion is naturally eliminated unchanged. A small amount appearing in your stool doesn’t automatically signal a problem with absorption.
Factors Affecting Metformin Excretion
Several factors influence how much metformin passes through your digestive system. These include your individual metabolism, the specific metformin formulation (extended-release tablets behave differently), and the presence of other medications. For example, interactions with certain drugs can affect metformin’s absorption.
What to Do if You See Metformin in Your Stool
If you consistently notice a significant number of undigested tablets, discuss this with your doctor. They can assess whether your current dose is optimal or if adjustments are needed. They may also recommend blood tests to confirm sufficient metformin levels in your bloodstream. Don’t adjust your dosage on your own.
