Murex purpurea
Quick Facts
- What it is: A homeopathic remedy made from the purple fish sea snail, watered down until no snail is left.
- Main uses: Heavy or early periods, A bearing-down feeling low in the belly, Mood swings around periods, Menopause complaints
- Best for: People already working with a homeopath who want a single remedy for period complaints
- Active ingredients: None at 30C, Traces of sea snail in a mother tincture or 1X to 3X
- Forms: Sugar pellets, Liquid drops in alcohol, Tablets, Mother tincture
- Time to effect: Days to weeks by tradition; no effect beyond a dummy pill in trials.
- Side effects: Rare at 30C; shellfish reaction and alcohol are the points to watch at low strengths.
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What is Murex purpurea?
Murex purpurea is a homeopathic remedy. It is made from the purple fish, a sea snail. Its Latin name is Bolinus (Murex) brandaris, and it is also called murex shellfish.
Homeopaths give it on its own, as a single drug, not in a blend. They use it mostly for women's complaints. These take in heavy periods, a dragging feeling low in the belly, and mood swings.
The snail is watered down over and over. At 30C, none of it is left in the pill. Long use in homeopathy is not proof of effect, and trials do not tell this remedy apart from a dummy pill.
How does Murex purpurea work?
Homeopaths work from an old rule they call 'like cures like'. They say a dose that would bring on signs in a well person can ease those same signs in a sick one.
At 30C the snail is gone from the pill. So there is no known way for it to act on your body.
When people feel better, the likely causes are time, care and hope. That is the placebo effect, which means feeling better from a dummy pill.
What forms does Murex purpurea come in?
Sugar pellets are the most common form. You let them melt under the tongue.
You may also see liquid drops in alcohol, small tablets, or a mother tincture, which is the strong first mix.
Labels show strengths such as 6C, 30C, 200C or 1M. A higher number means more watering down, not more power. Shops sell 30C most often.
Where it comes from:
The purple fish has been prized for a very long time. Dyers around the old Mediterranean boiled these snails to make Tyrian purple, a royal dye.
Homeopaths took the snail up in the 1800s. They gave it to healthy people and wrote down what those people felt. From those notes came its use for women's complaints.
It has stayed a small, side remedy. It is known in homeopathic books, but it is not one of the main ones.
Who should avoid Murex purpurea?
- Do not use if you react to shellfish and the label says mother tincture, 1X, 2X or 3X, as traces of the snail may still be there.
- Do not use if you take disulfiram or metronidazole (drugs that react with alcohol) and the remedy is an alcohol-based liquid.
- Do not use if you are staying off alcohol and the remedy is an alcohol-based liquid; ask for sugar pellets instead.
- Do not use if you plan to stop or cut down a prescribed drug to make room for it.
- Do not use if you have heavy bleeding, bleeding after the menopause, a lump, or bad belly pain; see a doctor first.
- Do not use if you are pregnant or breastfeeding, unless your doctor or midwife has said it is fine.
- Do not use if you want to give it to a baby under one year old; ask a doctor first.
When should you see a doctor?
See a doctor if your periods soak through a pad or tampon every hour, if you pass large clots, or if you bleed between periods or after the menopause. Get help too for pain that stops you doing daily things, for a lump you can feel, or if you feel faint, short of breath or very tired.
Go to urgent care if you get a rash, swelling of the lips or face, or trouble breathing after a dose. That can be an allergic reaction.
And see a doctor if low mood is deep or lasting, or if you think about harming yourself.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
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