... with Quinapril and Amlodopine. The Quinapril and Amlodopine I am use to, but I am weaning myself slowly off the Clonidine due to continued dizziness and headaches. Just in case it this dizziness and headaches remain after the Clonidine is gone, is there a substitute for Metoprolol that wont cause me to constantly be out of it?