or take certain medications called cyp3a4 inhibitors. kerendia can cause high potassium levels in your blood. tell your doctor about all the medicines you take and ask before taking potassium supplements or salt substitutes containing potassium. kerendia can also cause low blood pressure and low blood sodium. kidney damage from ckd in type 2 diabetes is not reversible. don't wait to ask your doctor if kerendia is right for you.