Educational information, not medical advice — ask your doctor or midwife.
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Conium maculatum is a homeopathic remedy made from poison hemlock, a very toxic wild plant. Homeopaths reach for it for hard swollen glands, breast lumps after a bruise, dizziness when you turn your head, and weakness in older people. It is sold as sugar pellets, tablets or liquid drops.
The remedy is made by diluting the plant juice again and again, with shaking at each step. At 30C, the strength most shops sell, no plant molecules are left. What you swallow is sugar or water that carries no source material.
Trials do not show that it works better than a dummy pill (placebo). Its long place in homeopathy is a record of custom, not proof that it does anything in the body. Traditional standing and proof of effect are two different things, and this page reports both.
There is no known way this remedy could act in the body. Homeopathy rests on the idea that a substance which causes symptoms in a well person can treat like symptoms when heavily diluted. No body process explains that idea, and it clashes with basic chemistry.
At 30C, nothing of the plant remains to act on your nerves, glands or blood. Homeopaths say the water keeps a "memory" of the plant. That claim has not been shown to be true in the lab.
When people feel better after taking it, the likely reasons are the placebo effect (feeling better because you expect to), the passing of time, and the long, calm talk with a practitioner.
Most shop-bought Conium comes as small sugar pellets or tablets that melt under the tongue. Liquid drops in alcohol and water are also sold.
Strengths are marked with a number and a letter, such as 6C, 30C or 200C. A higher number means more dilution steps, not more plant. From 12C upward, no source material is left at all.
Low strengths such as the mother tincture, 1X, 2X or 3X still hold plant matter. These belong in trained hands only. Never make your own preparation from the raw plant.
Poison hemlock killed the Greek thinker Socrates in 399 BC, and it has been feared ever since. Older doctors still used tiny doses on tumours and swollen glands, with mixed and unproven results.
Samuel Hahnemann brought Conium into homeopathy in the early 1800s. It has stayed a standard remedy in homeopathic books since then, mainly for hard lumps and dizziness in older people.
Some reactions to Conium maculatum 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 the emergency services at once if someone has eaten hemlock or a low-strength preparation and has muscle weakness, drooling, blurred vision, trouble breathing, a fit (seizure) or drowsiness. Hemlock poisoning gets worse fast and needs hospital care.
See a doctor within days, and do not wait on a remedy, if you have a new or growing lump anywhere, a breast lump or nipple change, a swollen gland that lasts more than two weeks, or night sweats and weight loss you cannot explain.
Get urgent care if you cannot pass urine at all, or if dizziness comes with slurred speech, a drooping face, weakness on one side, chest pain or fainting.
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 Conium maculatum 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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