Metallic Taste In Mouth
Metformin can cause an unusual and unpleasant metallic taste to develop in the mouth of many people. This side effect can be caused by a number of factors. Metformin alters the taste receptors of the brain. Metformin alters taste receptors in the brain, causing a metallic taste. The metallic taste can also be prolonged if the patient has any medication in their saliva. This side effect is usually harmless, so patients can relax. Many people report that this side effect often disappears when they continue taking metformin according to prescription. If this side effect persists or worsens, patients should consult their doctor.