Educational information, not medical advice — ask your doctor or midwife.
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Oenanthe crocata is a homeopathic remedy. It is made from hemlock water dropwort, a plant of wet ditches and stream banks. Homeopaths have used it for fits (seizures) and for muscle spasms.
The raw plant is one of the most poisonous plants in Europe. Its roots have killed people who ate them by mistake. Only the diluted homeopathic form is ever taken as a remedy.
The remedy is made by diluting the plant again and again. At 30C, no plant matter is left in the pill. Trials do not show that such pills work better than a placebo (a dummy pill), and long use in a tradition is not proof that a thing works.
There is no known way for this remedy to act on the body. Homeopathy holds that water keeps a trace of what was once in it. That idea has no support from chemistry or biology.
Homeopaths also follow a rule they call "like cures like". The raw plant causes fits, so they give the diluted plant for fits. This is a rule of the tradition, not a proven effect.
Any benefit people report is best explained by time, care and placebo effect.
You will usually meet it as small sugar pills or pellets. Liquid dilutions in water and alcohol are also sold. Common strengths are 6C, 30C and 200C.
The pills are most often made with lactose (milk sugar) or sucrose (cane sugar). The liquid form usually holds alcohol.
A mother tincture (the raw plant extract) also exists. It is a poison, not a home remedy, and should never be taken.
Homeopaths in Europe began using this plant in the 1800s. It came into the materia medica through provings, where healthy people took doses and wrote down what they felt.
It has always been a small, rarely used remedy. It was mostly given for fits and for lockjaw. It is not a staple of the tradition.
Some reactions to Oenanthe crocata need urgent care. Call your local emergency number or go to an emergency department straight away — do not wait to see whether it passes.
Call your emergency number at once if someone has a fit that lasts more than five minutes, or one fit after another. Do the same if you think anyone has eaten this plant. Signs of poisoning include vomiting, heavy sweating, a wide-eyed stare, jerking limbs and loss of consciousness.
See a doctor soon for a first fit, a new twitch that will not settle, a jaw that will not open, or cramps that keep coming back. Speak to your doctor before you change the dose of any seizure medicine.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
Reviewed by the HealisticMD editorial team How we grade evidence →
The published evidence for Oenanthe crocata is weak or absent. That usually means no controlled trial has tested it, not that a trial found it ineffective — the two are different, and we grade only what has been published.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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