Damiana Leaf affects the kidneys and the lungs.  It is not only a diuretic, but also a stimulant, aphrodisiac, and antiseptic.  Mix this with your favorite tea or drink it straight.
 
Preparation: Use 2 teaspoons to 1 Tablespoon (depending upon strength preference) of herbs per 6-8 ounces of boiling water. Let it seep for 10 minutes.