How Homeopathic Medicines Are Prepared

Liquid being poured from a small bottle into a mortar and pestle

A homeopathic medicine usually reaches you as a small bottle of white sugar globules or a few drops of clear liquid. Behind it is a long, carefully documented process, from raw material to labelled bottle. Knowing how it works helps you read your prescription, and shows why it matters where you buy your medicine.

Where homeopathic medicines come from

Homeopathic medicines are made from a very wide range of starting materials. Most fall into three broad groups.

  • Plants. This is the largest group. Whole plants, roots, flowers, leaves or seeds may be used. Arnica, Belladonna and Pulsatilla are familiar examples.
  • Minerals and chemicals. Common salt (sodium chloride, labelled Natrum muriaticum), silica (Silicea) and calcium carbonate from oyster shell (Calcarea carbonica) are well-known examples. Some metals are also used.
  • Animal sources. Some medicines are made from substances such as the honeybee (Apis mellifica) or the ink of the cuttlefish (Sepia).

Whatever the source, the first job is to make sure the material is the right one. A plant has to be correctly identified, collected as the official standard describes and checked for quality before anything else happens. A mistake here cannot be corrected later.

The mother tincture

For most plant medicines, the first preparation is called the mother tincture. The plant material is soaked in a mixture of alcohol and water for a set period, which draws its soluble substances out into the liquid. The liquid is then pressed out, filtered and tested. The exact method depends on the plant and on the pharmacopoeia being followed.

On labels in the subcontinent, a mother tincture is often marked with the letter Q or the symbol Ø. This can confuse people, because Q is also used for a quite different kind of potency, described below. If unsure, ask your pharmacist.

Mother tinctures are the least diluted form of a homeopathic medicine. Some are used as they are, while most become the starting point for further dilution.

Trituration: preparing substances that do not dissolve

Many minerals and metals do not dissolve in water or alcohol. Quartz, oyster shell and gold are examples. For these, homeopathic pharmacy uses a method called trituration.

The substance is ground for a long time with milk sugar (lactose), traditionally in a porcelain mortar with a pestle, in fixed proportions. Each stage of grinding produces a fine powder in which the original material is spread evenly through the sugar. After a few stages, the powder can be dissolved, and the medicine is then carried forward as a liquid, in the same way as a plant tincture.

Dilution, succussion and potency scales

The step that makes homeopathic pharmacy different from ordinary pharmacy is potentisation, also called dynamisation. It has two parts that are always done together:

  1. Dilution. A measured amount of the previous preparation is mixed with a fixed amount of alcohol and water.
  2. Succussion. The vial is shaken vigorously, traditionally by striking it against a firm but elastic surface. Samuel Hahnemann, who founded homeopathy, is described as using a wooden board covered in leather and padded with horsehair for this.

This dilute-and-shake cycle is repeated again and again. The number of repetitions, and the ratio used at each step, give the medicine its potency: the number and letter you see after the name on the label.

The decimal scale (X or D)

Each step is one part of the medicine to nine parts of liquid, a ratio of 1 to 10. A medicine labelled 6X has been through this six times. In Germany and parts of Europe the same scale is marked with the letter D.

The centesimal scale (C or CH)

Each step is one part to 99 parts, a ratio of 1 to 100. This is the scale Hahnemann used for most of his working life, and the one most often seen in Bangladesh and India: 6, 30, 200 and 1M (1,000) are familiar examples. A 6C and a 12X represent the same overall dilution, reached in different steps.

The LM or Q scale (50 millesimal)

In the last years of his life, Hahnemann developed a third scale in which each step dilutes the medicine 1 in 50,000. It is described in the sixth edition of his book, the Organon of Medicine, which was published only after his death. These potencies are written as LM1, LM2 and so on, or as 0/1, 0/2, or Q1, Q2. They are usually prescribed as liquids, with specific instructions.

Hahnemannian and other methods

The method described above, in which a fresh vial is used for each step, is known as the Hahnemannian method. Some manufacturers use a different technique, the Korsakovian method, in which the same vial is emptied and refilled. Labels may show a letter K for this.

What happens at high dilutions

Once a medicine has been diluted beyond about 12C (or 24X), it is unlikely that even a single molecule of the original substance remains. Homeopaths hold that the preparation process still gives the medicine its action. Many scientists and medical bodies do not accept this, pointing to the lack of a known mechanism. Views differ, and research on the question continues. Either way, the quality of manufacture still matters, because it decides whether the bottle contains exactly what its label says.

Pharmacopoeias: the rule books of homeopathic pharmacy

None of these steps is left to individual taste. Homeopathic medicines are made according to official reference books called pharmacopoeias. For each medicine, a pharmacopoeia describes how the starting material is identified and tested, how the mother tincture or trituration is made, and which quality checks apply. The best known include:

  • The Homoeopathic Pharmacopoeia of India (HPI), published under the Government of India. It contains more than a thousand monographs and is widely followed across South Asia.
  • The Homoeopathic Pharmacopoeia of the United States (HPUS), in continuous publication since 1897 and recognised by the American drug regulator as the official compendium for homeopathic medicines.
  • The German Homoeopathic Pharmacopoeia (HAB), part of the official German pharmacopoeia, which sets out the legal framework for manufacturing and quality assurance of homeopathic medicines in Germany.

From liquid potency to globules, tablets and drops

Once the required potency has been prepared in liquid form, it can be dispensed in several ways.

  • Dilutions. The liquid potency itself, usually in an alcohol base, supplied in a small glass bottle. It may be taken as drops, often in a little water, or used by the pharmacist to medicate globules.
  • Globules or pills. Small round pellets made of sugar. Plain globules are moistened with the liquid potency so that it soaks into them, then allowed to dry. The size of globule is identified by a number.
  • Tablets. Pressed tablets, usually made from lactose, medicated in a similar way. Many biochemic tissue salts are supplied as tablets.

The form you receive depends on the prescription and on practical matters such as the patient's age.

Quality, good manufacturing practice and licensed pharmacies

A bottle labelled Arnica 30 looks just like one labelled Arnica 200, so you cannot check at home what you have bought. You are trusting the maker and the pharmacy that sold it.

The World Health Organization has published guidance on safety in the preparation of homeopathic medicines, and many regulators expect homeopathic manufacturers to follow Good Manufacturing Practice (GMP). In simple terms, GMP means clean premises, trained staff, tested raw materials, written procedures for every step, accurate labels and records that let any batch be traced if a problem is found.

In Bangladesh, the Directorate General of Drug Administration (DGDA) is the national drug regulator. Its stated responsibilities include ensuring the quality, safety and efficacy of all kinds of medicines produced, imported or marketed in the country, including homeopathic medicines. For you as a patient, a few habits help:

  • Buy from an established, licensed homeopathic pharmacy rather than from street sellers or unknown online pages.
  • Check that the bottle is sealed and clearly labelled with the medicine name, potency, manufacturer, batch number and expiry date.
  • Do not substitute a different potency or brand without asking the physician who prescribed it.

If you have questions about your medicine or what its potency means, bring the bottle to your next appointment. And remember that homeopathic treatment should sit alongside, not in place of, the care your other doctors recommend.

Cover photo: Photo by Katherine Hanlon on Unsplash

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