Educational information, not medical advice — ask your doctor or midwife.
Bothrops lanceolatus is a single homeopathic remedy, not a mix. Its Latin name is Bothrops lanceolatus (venom). It is made from the venom of the fer-de-lance, also called the yellow viper, a pit viper from Martinique.
The venom is diluted again and again in water and alcohol, with hard shaking at each step. At 30C, a common strength, no venom is left. What you take is a sugar pill, or water and alcohol.
Homeopaths offer it for nosebleeds, bruising, blood clots and trouble speaking after a stroke. Trials do not show it works better than a dummy pill. Long use in a tradition is not proof that something works.
Homeopaths go by a rule called "like cures like". Raw snake venom stops blood from clotting and makes people bleed. So the remedy is offered for bleeding and clotting problems.
They also believe that the shaking at each step leaves a trace or pattern of the venom in the water. No test has ever shown such a trace. There is no known way for this to work.
At 30C the venom is simply gone. If you feel better after taking it, the likely reasons are the placebo effect, the time and care of the visit, or the problem easing on its own.
This is not a small point. It is the main thing to know before you spend money on it.
The remedy comes in a few simple forms. Sugar pills or small pellets are the most common. Liquid drops in alcohol and water are also sold.
Strengths are marked with a number and a letter, such as 6C, 30C or 200C. The higher the number, the more the venom has been diluted. At 30C and above, none of it is left.
Buy only from a known pharmacy or brand. Never use a home-made or hand-diluted version, because you cannot know what is in it.
Snake venoms came into homeopathy in the 1800s. The homeopath Constantine Hering worked with Lachesis, a related pit viper, from 1837. Other snake remedies followed his lead.
Bothrops lanceolatus was written up the same way. The notes came from reports of what the venom did to healthy volunteers and to people bitten by the snake.
It has never been a major remedy. Most homeopaths use it rarely. No tradition outside homeopathy uses it.
Some reactions to Bothrops lanceolatus need urgent care. Call your local emergency number or go to an emergency department straight away — do not wait to see whether it passes.
Call emergency services now if you or someone with you has a drooping face, weak arm, slurred speech, sudden chest pain, trouble breathing, or a hot and swollen leg. These can be a stroke or a blood clot, and minutes matter. Also call for any snakebite.
See a doctor soon if a nosebleed will not stop after 20 minutes of steady pressure, if you bruise easily for no reason, if you find blood in your pee or poo, or if a wound will not heal.
Stop the remedy and speak to your doctor if you get a rash, swelling of the lips or face, or trouble breathing after taking it.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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