What is Thyroidinum?

Thyroidinum is a homeopathic remedy made from the dried thyroid gland of a sheep (Latin name: Ovis aries). It is also called thyroid gland extract. People use it for signs of a slow thyroid, such as tiredness, weight gain, dry skin and feeling cold.

Like all homeopathic remedies, it is made by watering down the source material again and again. At the common 30C strength, no sheep thyroid is left in the pill. Low strengths such as 1X or 3X can still hold real thyroid hormone, which does act on the body.

Here is the plain verdict. Trials do not show that it works better than a dummy pill. Long use in a tradition is not proof of effect, and we say that once here for the whole page.

How does Thyroidinum work?

No one has shown how Thyroidinum could work at normal homeopathic strengths. At 30C the source has been watered down so far that not one molecule (a tiny particle of matter) of sheep thyroid is likely to be left.

Homeopathy rests on the idea of "like cures like". The claim is that a substance that causes signs in a well person can, once watered down, ease those same signs in a sick person. Homeopaths also say that shaking at each step leaves an imprint in the liquid, but no test has ever shown such an imprint.

One thing here is real. Very low strengths, such as the mother tincture or 1X to 3X, can still hold thyroid hormone from the gland. That hormone can speed up the heart and change how fast your body burns energy, so those forms are not inert (not free of real effect).

What forms does Thyroidinum come in?

Thyroidinum comes as small sugar pellets, tablets or liquid drops. Pellets are the most common form and are meant to melt under the tongue.

Strengths are written as a number with an X or a C, such as 3X, 6X, 6C, 30C or 200C. A higher number means more watering-down steps and less chance that any source material is left. Some shop products blend it with other homeopathic remedies.

Do not mix it up with desiccated thyroid, sold under names like Armour Thyroid. That is a licensed drug with a measured hormone dose and needs a prescription.

Where it comes from:

Doctors in the late 1880s found that feeding sheep thyroid helped people whose own thyroid had almost stopped working. It was one of the first gland treatments in medicine.

Homeopaths soon tested the dried gland on healthy people and wrote down what they felt. Thyroidinum entered homeopathic books around 1890 and has stayed in them since.

It is a known remedy in homeopathy, but not a leading one. Its record sits inside one tradition and goes back a little over a hundred years.

What does Thyroidinum help with?

• Tiredness linked to a slow thyroid: This is the main reason people reach for Thyroidinum. Homeopathic books describe a person who feels heavy, weak and worn out. No trial has tested the remedy for this, and tiredness has many causes, so a blood test comes first.
• Weight gain that is hard to shift: Homeopaths have long paired this remedy with slow weight gain and puffiness. There is no trial evidence that it helps anyone lose weight. Low-strength forms that still hold real hormone can cause weight loss, but in an unsafe and uncontrolled way.
• Feeling cold all the time: Old homeopathic notes list a strong dislike of cold as a key sign for this remedy. That comes from provings and case notes, not from trials. Feeling cold with tiredness and dry skin is worth a thyroid blood test.
• Dry skin, brittle hair and hair loss: These are classic signs of an underactive thyroid, and homeopathic texts group them under Thyroidinum. No controlled study has tested the remedy for skin or hair. Treating the underlying thyroid problem is what changes these signs.
• Low mood and slow thinking: Traditional homeopathic pictures include dullness, poor memory and low spirits. There is no human trial support for this use. Low mood that lasts more than two weeks needs a proper assessment.
• Slow growth in children: Some older homeopathic writing suggests this remedy for children who grow slowly. We would not recommend acting on that. A child who is not growing as expected needs a doctor to check their thyroid and other causes first.
• Chilblains (painful red patches on fingers and toes in cold weather): A few homeopathic materia medica entries link Thyroidinum to chilblains. This rests on case reports from one tradition only. No trial has looked at it.

Which foods are rich in Thyroidinum?

1. Seaweed: very high in iodine, which a healthy thyroid needs to make its hormones
2. White fish such as cod: a steady source of iodine
3. Milk and yoghurt: a main iodine source in many countries
4. Eggs: a modest source of iodine
5. Iodised salt: table salt with iodine added on purpose

What are the side effects of Thyroidinum?

• Usually nothing at all at 30C and higher strengths
• Sugar from the pellets, which matters if you have diabetes
• Racing or pounding heartbeat, mainly with very low strengths
• Sweating and feeling too hot
• Shaky hands (tremor)
• Trouble sleeping and feeling on edge
• Unwanted weight loss
• Loose or frequent stools
• Bone thinning over long use of hormone-containing strengths
• Harm from delay, if it is used instead of tested thyroid treatment

Good to know:

At 30C and above there is nothing in the pill but sugar, so direct side effects are very unlikely.

The risks sit in two places. Very low strengths may hold real thyroid hormone and can push your heart and body too fast. And an untreated slow thyroid gets worse over time, so using this instead of proper treatment is the bigger danger.

Any fast, irregular or pounding heartbeat after taking a thyroid product needs medical advice the same day.

How much Thyroidinum should you take?

• Recommended daily: There is no proven dose, because no trial has shown that this remedy does anything. Homeopathic makers usually suggest 3 to 5 pellets of a 30C strength, once or twice a day, melted under the tongue. Homeopaths who prescribe by hand often use a single dose of 30C or 200C and then wait, rather than dosing daily. Thyroidinum must never be used in place of prescribed thyroid medicine. If you have an underactive thyroid, keep taking your tablets and keep your blood test appointments.
• Best time of day: Most labels suggest morning and evening. There is no evidence that timing matters.
• With or without food: Homeopathic custom says to take the pellets on a clean mouth, about 15 minutes before or after food, drink, toothpaste or strong mints. This is tradition, not tested fact.
• Time to effect: No reliable answer exists, because the remedy has not been shown to beat a dummy pill. Homeopathic labels often say a few days to a few weeks.
• How long to take it: If you try it, keep the trial short. Two to four weeks is enough to see whether anything changes for you. Stop and speak to a doctor if your symptoms stay the same or get worse. Do not keep taking it for months in the hope of a late effect.