What is Lyssinum?

Lyssinum is a single remedy used in homeopathy, not a blend. It is also sold as Lyssin or Hydrophobinum. Its Latin name means the saliva of a rabid dog, and that saliva is the starting material.

That material is diluted over and over, and shaken at each step. At 30C, the usual strength, none of the source is left. The pellet or drop you take holds no rabies material at all, so it cannot give you rabies.

Homeopaths reach for it when a person has fear of water, sudden rage, or nerves that feel raw. Long use in a tradition is not proof that a remedy works. In trials, homeopathy has not beaten placebo, a dummy pill with no drug in it.

How does Lyssinum work?

Short answer: no one has shown that it works, and there is no known way it could.

Homeopathy rests on two ideas. One is that a thing which causes symptoms in a well person can ease those same symptoms in a sick one. The other is that shaking a liquid while you dilute it makes it act more strongly.

Neither idea fits what we know about chemistry. At 30C, not one particle of the source is left to act. Any change a person feels is most likely from hope, care and time, not from the pellet.

What forms does Lyssinum come in?

Pellets of 30C are the form you will see most. They are small white balls of milk sugar, and you let them melt in your mouth.

Liquid drops come in water and alcohol. You put them under the tongue or in a little water.

Labels run from 6C up to 200C and higher, such as 1M. All are past the point where any source is left. A higher number means more diluted, not more medicine.

Where it comes from:

Constantine Hering, an American homeopath, made this remedy in 1833. He took saliva from a dog with rabies and diluted it.

It belongs to a group homeopaths call nosodes, which are remedies made from diseased material. Hering's volunteers took it and wrote down what they felt. That list became the picture of its use.

It has stayed a minor remedy. It is known across homeopathy, but it is not a staple of daily practice.

What does Lyssinum help with?

• Fear of water or of the sound of running water: This is the classic use in homeopathy, and it comes from the 1833 notes, not from trials. No human study has tested it for this. If a fear stops you washing, drinking or leaving the house, talk to a doctor. Talking therapy for fear has good proof behind it.
• Fear of dogs, and distress after a dog bite: Homeopaths have used it for the shock and fear that linger after a bite. There is no trial evidence for this. A bite is a medical matter first. Wash the wound, then go to a hospital the same day for rabies shots and a tetanus check. Do not use pellets in place of those shots.
• Sudden rage or angry outbursts: The remedy picture describes flashes of anger and a wish to bite or strike. That picture comes from volunteer reports, not from controlled studies. Anger that scares you or the people near you needs a doctor's help. Please do not wait.
• Headache said to be worse near water or bright light: This is a traditional pointer, used to pick the remedy rather than a proven use. No study supports it. A new, very bad or daily headache should be checked by a doctor.
• Feeling jumpy and raw, with too much sense of noise, light and touch: Homeopaths use it when every sound and light feels too much. Again, this rests on the old provings alone. Many things cause this, from poor sleep to anxiety to illness. A doctor can help you find the cause.

Which foods are rich in Lyssinum?

Nothing you eat or drink will give you this remedy.

What are the side effects of Lyssinum?

• Nothing at all, which is the usual outcome, since 30C pellets hold no drug
• A short flare of symptoms, which homeopaths call an aggravation
• Wind, cramps or loose stools if you cannot digest lactose (milk sugar)
• Stinging in the mouth from the alcohol in liquid drops
• Delay in getting care that works, which is the main and worst risk

Good to know:

Direct harm from the pellets is very unlikely, because there is no drug in them.

The real danger is what you might not do while you wait. Rabies after a bite can be stopped by shots, but only before signs start. Once signs start, it is almost always fatal.

How much Lyssinum should you take?

• Recommended daily: No dose has been shown to do anything, so none is established. In practice, a homeopath may suggest 3 to 5 pellets of 30C, once or twice, then a wait. Some give one dose only and stop there. Taking more does not make it stronger. It only means more sugar.
• Best time of day: Any time of day. Many homeopaths say to take it away from food and drink by about 15 minutes. That is custom, not proof.
• With or without food: Between meals, on its own. Let the pellet melt in your mouth rather than swallowing it whole. Food has not been shown to matter.
• Time to effect: No effect beyond placebo has been shown, so no honest timeline can be given. People who report a change usually say it came within hours or a day or two.
• How long to take it: Days, not months. If nothing has changed after about a week, stop. If the problem is getting worse, see a doctor instead of repeating the dose.