Mercurius Solubilis is a homeopathic remedy prepared from a mercury compound. In homeopathic practice it is traditionally associated with sore throats and mouth complaints, excessive saliva with bad breath, and a marked sensitivity to changes in temperature, with symptoms that are often worse at night and from both heat and cold.
This page covers its source, the complaints it has traditionally been linked to, the symptom picture that points to it, and the forms and potencies commonly used.
The short version: A mercury remedy classically linked with sore throats, dribbling saliva, bad breath and worse-at-night symptoms.
What is Mercurius Solubilis and where does it come from?
Mercurius Solubilis (Hahnemann's soluble mercury) is prepared from a compound of the metallic element mercury. As the crude substance is toxic, it is used only after homeopathic trituration, dilution and succussion.
Mercury has a long and cautionary history in old medicine, and the homeopathic proving centres on the mucous membranes, the glands and temperature regulation.
What is Mercurius Solubilis traditionally used for?
The whole picture guides the choice. Mercurius Solubilis is traditionally associated with:
- Sore, raw throats, often with swollen glands and difficult swallowing.
- Excess saliva and a moist mouth, with metallic taste and bad breath.
- A flabby, imprinted tongue that shows the marks of the teeth.
- Sensitivity to both heat and cold, being hard to keep comfortable.
- Sweating that does not relieve, and symptoms worse at night.
Who typically reaches for it?
The classic Mercurius picture is someone with a raw sore throat and a wet, dribbling mouth, breath that has turned unpleasant, and a tongue that looks flabby and takes the imprint of the teeth. They feel like a human thermometer, uncomfortable whether it is too warm or too cold.
Symptoms are typically worse at night, from the warmth of the bed, and from swings in temperature, with restless, unrefreshing sweat.
What forms and potencies does it come in?
Like most classical remedies, Mercurius Solubilis is prepared by serial dilution and succussion from its source material. You will most often see it in small lactose pillules or tablets, and sometimes as liquid drops or in combination formulas alongside complementary remedies.
In home self-care it is commonly used in low to medium potencies such as 6C or 30C. Lower potencies are often chosen for more physical, everyday complaints, while 30C is a popular general-purpose strength. Higher potencies are usually reserved for guidance from an experienced homeopath.
Your natural toolkit — and which to reach for
You'll find Mercurius Solubilis in the pick below, prepared in a convenient tablet form.
Mercurius-Heel Tablets — reach for this if you want Mercurius in a ready-made tablet formula.
Featured products
Mercurius-Heel Tablets
A tablet formula built around Mercurius for the sore-throat and mouth picture.
Explore the full United Remedies range — blending homeopathy from Heel, Guna and Sanum with Weleda’s plant-based topicals and Zooki’s liposomal supplements.
Common questions
What is Mercurius Solubilis made from?
It is prepared from a mercury compound, which is triturated and diluted many times so that it is used only in homeopathic form.
What is it best known for?
Traditionally, sore throats and mouth complaints with excess saliva, bad breath and marked sensitivity to temperature.
What potency is common?
Low to medium potencies such as 6C or 30C are typical for home use; a homeopath may advise differently.
Note: This page is for general education and is not medical advice. Homeopathic remedies are used within a long tradition of self-care; they are not a substitute for professional diagnosis or treatment. If symptoms are severe, persistent or worsening, or if you are unsure, please speak to a qualified health professional.