What is Cadmium sulphuratum?

Cadmium sulphuratum is a homeopathic remedy made from cadmium sulphide. That is a yellow mineral, also known as greenockite. It is a single remedy, picked to match your pattern of symptoms rather than a disease name.

Homeopaths have used it mainly for violent vomiting, burning stomach pain, and deep tiredness during illness.

It is made by diluting the mineral again and again. The mineral is ground up, then mixed with more liquid and shaken at each step. At 30C, the dilution is so extreme that almost none of the first cadmium sulphide is left in what you swallow.

The honest verdict: no human trial has ever tested this remedy. Trials of homeopathy as a whole do not show it works better than placebo (a dummy treatment). It has a known place in homeopathic writing, but long use is not proof that something works — and that applies to everything on this page.

How does Cadmium sulphuratum work?

Homeopathy rests on one idea. A substance that causes symptoms in a healthy person is said to help a sick person with the same symptoms, once it is watered down a lot. Cadmium poisoning causes violent vomiting, burning pain and collapse, so the remedy was matched to people with that picture.

There is no accepted physical reason why a dilution with no source material left could act on the body. Lab work has not found a repeatable effect for such dilutions.

Any change people notice is best explained by placebo, by the illness passing on its own, and by the care and attention of a long consultation. None of that is nothing — but it is not the mineral at work.

What forms does Cadmium sulphuratum come in?

You will find it as sugar pellets or granules, usually made with lactose (milk sugar). It also comes as small tablets that melt under the tongue, and as liquid drops in a base of water and alcohol.

The strengths sold most often are 6C, 30C and 200C. LM potencies and low decimal ones, such as 3X or 6X, are made too. The low ones are the ones that may still hold real cadmium.

Where it comes from:

Cadmium sulphuratum came into homeopathic use in the 1800s. It followed provings (tests on healthy volunteers) in Europe and North America. It appears in the classic texts of Hering and Kent, usually tied to great weakness, coldness and vomiting that will not stop.

It has always been a small, little-used remedy rather than a first-choice one. It has no history of use outside homeopathy.

What does Cadmium sulphuratum help with?

• Violent nausea and vomiting: This is the classic picture homeopaths match to this remedy: retching, vomiting at the sight or smell of food, and no relief afterwards. No human trial has tested it for this. Repeated vomiting can dehydrate you quickly, so it is a symptom to take to a doctor, not to self-treat.
• Burning stomach pain: Homeopathic texts describe a burning, raw pain in the stomach that is worse from touch and from food. There is no trial evidence here. Burning stomach pain can come from a peptic ulcer (a sore in the stomach lining) or from other conditions that need proper testing and treatment.
• Extreme weakness and exhaustion during illness: Old materia medica entries describe collapse, cold skin and a person too weak to move. That is a description of someone who is seriously unwell. No studies support using the remedy for this. Sudden collapse or extreme weakness is a reason to get urgent medical help.
• Feeling icy cold with sickness: Homeopaths use coldness, especially with vomiting, as one of the signs pointing to this remedy rather than another. This is a matching rule inside homeopathy, not a finding from research. No trial has tested it.
• Sickness during cancer treatment: Some homeopaths have suggested this remedy for nausea in people having chemotherapy. There is no trial evidence that it helps, and no evidence that it affects cancer itself. Do not use it in place of anti-sickness medicines or any treatment your cancer team recommends. Tell your oncology team about anything you take, because they can offer nausea treatments that are tested and effective.

Which foods are rich in Cadmium sulphuratum?

1. Shellfish, especially crab and oysters: they concentrate cadmium from seawater
2. Liver and kidney from older animals: cadmium collects in these organs
3. Rice and leafy greens grown in contaminated soil: plants take cadmium up from the ground
4. Cocoa and dark chocolate: cocoa beans can carry measurable cadmium

Practical Tips:

These foods are everyday sources of dietary cadmium, listed for context only — none of them is a treatment, and tobacco smoke is the largest avoidable source for most people.

What are the side effects of Cadmium sulphuratum?

• Usually nothing at all at 30C and above
• A short flare of symptoms, which homeopaths call an aggravation
• Stomach upset or wind in people who cannot digest lactose (milk sugar), from the pellets
• Alcohol content in liquid drops, which matters if you avoid alcohol
• With low potencies, possible exposure to cadmium, a toxic heavy metal that builds up in the kidneys and bones
• Delay in getting real treatment, which is the most common harm

Good to know:

At 30C and above there is no cadmium left, so direct side effects are very unlikely. The usual outcome is that nothing happens.

The real risks lie elsewhere. Low potencies can expose you to a heavy metal linked to kidney damage, weakened bones and cancer. Using the remedy instead of medical care for heavy vomiting can let you become dehydrated fast.

Cadmium is classed as a human carcinogen (a substance that can cause cancer) when you are exposed to it over time. That is why this page is marked high-risk even though a 30C pellet contains none of it.

How much Cadmium sulphuratum should you take?

• Recommended daily: There is no established dose, because there is no evidence the remedy does anything. In practice, homeopaths commonly suggest a few pellets of 30C, or a few drops of liquid, once to a few times a day for a short spell. Product labels vary, and none of these amounts come from trial data. If you choose to try it, avoid low potencies such as 3X, 6X or 3C, which may still contain real cadmium.
• Best time of day: No time of day has been shown to matter. Homeopaths usually suggest taking it away from meals, strong flavours and toothpaste, by about 15 to 30 minutes.
• With or without food: Usually taken on an empty mouth, letting pellets dissolve under the tongue rather than swallowing them with food or drink.
• Time to effect: Nothing reliable can be promised. Homeopaths expect a response within hours to a couple of days; there is no evidence behind that timeline.
• How long to take it: Keep any trial short — a few days at most. Homeopathic practice is to stop as soon as things improve, and to rethink if nothing changes. If your symptoms have not settled within 48 hours, or are getting worse, see a doctor rather than continuing.