Goldenrod has a dehydrating and diuretic effect. It is considered a good herbal remedy for urinary tract infections and convulsive pain. Many people swear by goldenrod as a drug for urinary tract infections. Solidago virgaurea is also widely used as a means of flushing urological infections or urinary stones. Whether the individually observed effect is due to the medicinal plant, studies have not been able to prove. Stiftung Warentest describes studies with positive results as methodologically insufficient – and therefore does not consider the effect proven (September 2014).
Medicinal Plant Goldenrod (Solidago virgaurea)
- dehydrating and diuretic, inhibits inflammation, relieves spasms and pain, effects detected in animal experiments
- no flushing therapy for edema caused by heart failure or kidney dysfunction
- do not use in case of allergy to flowers of the pericarp, otherwise no side effects or interactions
- Areas of application: Prevention and supportive treatment of urinary tract infections, improvement of kidney activity, discharge and prevention of urinary stones, supportive treatment of joint pain in rheumatic diseases and arthritis.
There is a chicken and egg problem when looking at the goldenrod effect on urinary tract infections or kidney stones. During therapy, patients should drink a lot to stimulate the flow of urine and possibly flush out urinary stones. The positive effect of flushing therapy is undisputed. Not only in urological diseases, the organism benefits from an increased amount of drinking. A drinking volume of 2 to 3 liters per day is generally recommended. Who drinks a lot, also excretes a lot of urine. What contribution goldenrod and other medicinal plants such as bearberry or field chaff peat make is not known.
Active ingredients and mode of action
Goldenrod medicines are extracted from the whole plant (without roots). Depending on the type of goldenrod, usually real or ordinary goldenrod is used, varies the active ingredient composition. Especially effective plant dyes (flavonoids such as rutoside), so-called sesquiterpenes and triterpene saponins, as well as essential oil and some phenol glycosides.
Mode of action
The mode of action of the active ingredients in the goldenrod is – apart from animal experiments – barely studied. Flavonoids are known to be diuretic and dehydrating. Triterpenes are considered anti-inflammatory. What the interaction of these and other agents looks like in detail is unknown.
Laboratory tests have shown that the active ingredients in addition to the diuretic effect also inhibit inflammation and could solve convulsions. This would explain positive effects on joint complaints, rheumatic diseases, and pain. Thanks to the seemingly antispasmodic effect of the goldenrod, many cough-tea mixtures contain goldenrod.
Goldenrod as a medicinal preparation is mainly available in tablet form and as a fluid. These medicines usually contain only goldenrod. In teas, goldenrod is often combined with other medicinal plants.
No flushing therapy for edema
Anyone who suffers from edema (accumulation of water in the tissue) due to heart failure or kidney dysfunction, should seek medical advice before a flushing therapy. A large amount of fluid can cause serious complications in these circumstances because it puts a strain on the heart and kidneys.
Side effects and interactions
Notable side effects and interactions with and with goldenrod preparations or teas are unknown. At most, it may lead to allergic skin reactions with redness and itching. This is especially true for a daisy allergy.
Children and pregnancy
Some experts advise not to use Goldenrod in children, pregnant women, and nursing mothers because the safety of the medicinal plant has not been proven.
There is an enormous variety of goldenrod species. Who wants to collect the medicinal plants, should therefore arm yourself with a detailed description. The medicinal plant is easy to find in our latitudes – especially in sunny locations near the forest. The best harvest time is the midsummer at the beginning of August when the goldenrod is blooming: just collect the flower-like parts of the plant and dry them in the shade in the air.
Easy to confuse is the goldenrod with the Jacobs Greiskraut. The best way to distinguish the plants on the leaves. The goldenrod is less broad and hardly feathered.
Jacobs ground-weed could be toxic to humans. Farmers are aware of deadly cases of poisoning in cattle and horses when a lot of ground-weed gets into hay or silage.
Goldenrod tea to prepare
Add 2 teaspoons of dried goldenrod to 250 ml of cold water, bring to a boil, and strain for 2 minutes and strain. At the first signs of urinary tract infection or to prevent recurring kidney stones or bladder stones drink about 3 cups per day.
To support flushing therapy, this amount of drinking is not enough. In this case, it should be at least 3 liters per day. Suitable are water, juice spritzers and herbal teas.