@mintercreekin Welcome to Mayo Clinic Connect!

Do you have existing kidney issues? When you mention your kidney function is declining, what are the tests showing for values of the eGFR? We like to look at trends rather than a one-time value, unless you are experiencing an acute medication reaction. Other things that can affect your reading is an infection, or poor hydration.

I would suggest you interface with your prescribing doctor and let them know about the declining function. That medication may not be the best one for you if there are still symptoms it is supposed to alleviate. Will you let me know what your doctor says?
Ginger