Circulatory system: As already pointed out, the cardio-active remedies have a diuretic effect because they increase blood flow through the kidneys. Remedies for this system include Lily of the Valley, Broom, Dandelion and Yarrow. The first two are cardio-active and the others are tonic. All diuretics help remove water from the body and can be of benefit for the cardiovascular system. Care should be taken to ensure the right ones are used in the specific condition being treated. Broom should not be used in high blood pressure, for example.

Respiratory system: If pulmonary congestion is occurring due to heart problems, then most of the diuretics will be of value. Remedies that have an affinity for this system include Boneset, Cleavers, Elder, Yarrow and Eucalyptus.

Digestive system: Some of the laxative herbs act as diuretics as well. Here we can mention Agrimony, Blue Flag, Boldo, Borage, Celery Seed, Dandelion, Parsley, Pumpkin Seed.

Reproductive system: The antiseptic diuretics often work in the same way on the reproductive system. Of special relevance is Bearberry. Saw Palmetto is a mild diuretic.

Muscles and skeleton: Because of their cleansing action, many diuretics help in problems of muscles and bones. Boneset, Celery Seed, Yarrow and Gravel Root are but a few.

Nervous system: Borage and Bugleweed are the only real diuretics to impact the nervous system directly. However, if there is much tension, using a nervine to relax may allow more urine to be passed.

Skin: All the diuretics potentially help the skin by an inner cleansing process. Especially important are Cleavers, Couch grass and Dandelion. An important point is that some diuretics act as diaphoretics when drunk hot.