This reduction of body water is the purpose of taking diuretics. Therefore, there is usually no reason to replace lost sodium, although strict limitation of salt intake in combination with the actions of diuretics can sometimes cause excessive sodium depletion. On the other hand, people who restrict sodium intake and in the process reduce blood pressure may need to have their dose of diuretics lowered. These herbs include dandelion , uva ursi , juniper , buchu , cleavers , horsetail , and gravel root. Digitalis refers to a family of plants commonly called foxglove, which contains digitalis glycosides chemicals with actions and toxicities similar to the prescription drug digoxin .
Thiazide diuretics can increase the risk of digitalis-induced heart disturbances.
10 Thiazide diuretics and digitalis-containing products should be used only under the direct supervision of a doctor trained in their use. One case was reported in which ginkgo use was associated with high blood pressure in a person treated with a thiazide diuretic. It was not proven that ginkgo was the cause of this reaction. Licorice may potentiate the side effects of potassium-depleting diuretics, including thiazide diuretics. 12 Thiazide diuretics and licorice should be used together only under careful medical supervision.