Educational information, not medical advice — ask your doctor or midwife.
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Nuphar luteum is a homeopathic remedy. It is made from the root of the yellow pond lily, a water plant with bright yellow flowers. Homeopaths have used it mostly for low sex drive in men, and for loose stools first thing in the morning.
The root is soaked in alcohol to make a starting liquid. That liquid is then watered down again and again, with shaking at each step. At the common strength 30C, none of the plant is left in the final product, so what you take is water, alcohol or a plain sugar pellet.
Human trials do not show that this remedy works better than a dummy pill. Its place in the shop rests on old homeopathic case notes, not on test results. Long use in a tradition is not the same as proof that something works, and that holds for every claim on this page.
There is no accepted way this remedy could work in the body, because at 30C there is nothing of the plant left to act.
Homeopathy uses two ideas. The first is "like cures like": a substance that causes a symptom in a well person is given, in tiny form, to a sick person with that symptom. The second is that shaking at each step of watering down somehow leaves an imprint.
That second idea does not fit what we know about chemistry. It has not been shown in a lab. Any change a person notices after taking the remedy is best explained by placebo effect, by the illness settling on its own, or by other care they are getting.
You will most often see these forms:
Sugar pellets or tablets soaked with the diluted remedy. Liquid drops in a water and alcohol base. Strengths sold as 6C, 12C, 30C or 200C, and sometimes as 3X or 6X.
Low strengths such as 1X or the mother tincture do still hold plant material. These are much less common on shop shelves and should only be used with a trained practitioner.
The remedy entered homeopathy in the 1800s, when American homeopaths tested plants growing near them and wrote down what they felt. The notes from those tests became the picture of symptoms the remedy is matched to.
The plant itself has a longer past. Some Native American groups used pond lily root as a food and as a poultice, which is a mash laid on the skin. That older use is separate from the homeopathic one.
Nuphar luteum has always been a small, side remedy in homeopathy rather than a main one.
See a doctor if your symptoms have not changed after two to four weeks, or if they are getting worse.
Book an appointment soon if you have trouble getting an erection that is new or getting worse, as this can be an early sign of heart or blood vessel trouble. Also get checked for pain, a lump, a discharge, or itching and soreness around the genitals.
Get urgent care for loose stools with blood, black stools, a high fever, bad belly pain, or signs of losing too much fluid such as dizziness, a dry mouth and passing very little urine.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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