This specific materia medica post regarding Arnica montana side effects is going to be posted a bit more differently than previous ones…

Before explaining this remedy as described in the classical materia medicas, I feel that it’s important to address this question:

Given its immense popularity by both physicians and laypeople, many have asked if Arnica montana side effects exist. Can one get a negative reaction from using this remedy?

In short the answer is that it depends how you use Arnica – either herbally or homeopathically:


Arnica in Herbal Medicine


In its original herbal form, Arnica is a perennial, poisonous flower from the compositae family. It can grow up to 2-3 feet.arnica montana side effects

It grows across the entirety of Europe and western Asia.

This flower is usually found among meadows, pastures, lawns, and in areas containing poor soil.

Herbally, Arnica has several uses. One of them is in tea form known as “fall kraut,” which is used to strengthen mountain climbers.

Additionally, it can also be used for a variety of injuries, bruising, and aches, as well as even for acne.

The catch however, is that if one overuses herbal Arnica or eats it in its entirety, then this can lead to serious side effects, which may even include death.

Therefore, when looking for a herbal product containing Arnica, it is very crucial to check to see if is safe for consumption for application before usage.



Arnica as a Homeopathic Remedy – No Arnica Montana Side Effects

arnica montana side effectsWhen converted into a homeopathic remedy , the physical, poisonous contents of Arnica are completely diluted numerous times, making its usage 100% safe and free of any (dangerous) side effects.

This is the case as well with other homeopathic remedies.

The only homeopathic Arnica that may show minor side effects is the Arnica gel/cream, commonly sold by Boiron.

But even with the gel, its therapeutic use is generally safe and the side effects, if any, may at worst be slight irritation, as long as you do not eat the gel.

Even research has demonstrated the gentle and effective healing abilities of Arnica, especially for severe acute conditions that may require surgical intervention.


Arnica Rubrics: What Homeopathic Arnica Can Do For You


Before checking out the rest of this article, take a look at homeopath Misha Norland’s video on the personality picture of Arnica:




Here are the mind, physical, and acute symptoms that Arnica is most commonly used for in homeopathy, as found in the materia medicas in text form:


Mind Symptoms




Unreality – they claim to be fine even right after a severe injury, accident, shock, etc.


Says nothing is wrong with him although he is ill.

Fear of being touched, people coming near him (even if he/she is ill, injured).

Feeling as if he is beaten, thrown down back again. Delusion as if beaten.



Jet lag.

Fear of waking from sleep.


Physical Symptoms


Bed feels too hard.

Symmetrical boils, red dots.

Febrile hemorrhaging under the skin which is symmetrical.

Heat on the upper part of body and also cold on the lower part.

Bruising, sprains.


Inflammation of the brain.

Head trauma.

First to think of for concussions.

Postpartum soreness.

Shock after accident, surgery.



Heart attack.

Broken bones.

Retinal detachment, hemorrhaging.

Pre-surgery issues.

Dystentry – diarrhea.

Vomiting blood.

Big belly and stinky farts.


  • blood, blood vessels, muscles, soft tissues, digestive system.
  • blood is seeping, not gushing.


  • Better lying down, let alone.
  • Worse from touch.
  • Diarrhea is worse from left side.


Never Been Well Since…

  • Surgery.
  • Injury.



  • Head is hot, body is cold.
  • Cold spot on forehead.
  • Dizziness on closing the eyes.
  • Stomach feels like its pressing against spine.


Desires & Aversions

  • Better from vinegar, sour, cold water.
  • Worse from  milk, meat, broth, tobacco, brandy.


Dreams & Fears

  • Dreamsdeath, mutilated bodies, trauma, violence.
  • Fears: fear of being approached or touch, rape, death, horror.




Acute Conditions


Trauma, traumatic injuries.


Surgery (before and after; see this post for more information).


Can be a great flu remedy (if the flu is worsened or ignited by back pain, bone pain, cannot lie down).


Just To Sum Up…


* Arnica montana side effects DO NOT exist in its homeopathic form, unless it is used in a gel or herbal form

* Among other uses, Arnica is a prime first aid and injury remedy, and is usually the first remedy that comes to mind in those situations, especially for concussions

* Refer to the remedy information above for future references.


About the author

Ariel Baradarian

Ariel Baradarian, CCH is an experienced holistic certified homeopathic practitioner with success in addressing a wide variety of mental, emotional, and physical ailments in men, women, and children of all stripes. He works both alongside local medical and integrative doctors and their patients as well as with his own growing, global private practice, both in person in his office in Queens, NY and globally via video chat sessions. Ariel is also a natural health blogger and chief editor of, which is dedicated to helping others heal on all levels using various types of natural healing, including homeopathy. In addition, he is the New York Producer of the Vibrant Living Network, an inspiring organization dedicated to promoting a community natural and holistic health, mindful consciousness, relational intelligence and more!

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  • Great information! So many people seem to be scared of utilizing homeopathic remedies because they really don’t know what they are. I used to be skeptical of them, calling them sugar pills, until my dad took ill, and I got so fed up with modern medicine.

    I personally have used Arnica, Apis, and currently Pulsatilla off an on for Sinus issues. I have also give the same Pulsatilla that I use to my kitty Milo to help with his urinary crystals. I commonly stick with the 30C pills, and have not had any negative effects from anything I have used.

    Thanks for creating a site like this that finally explains in normal terms what homeopathic remedies are.

    • Wow Jennifer, that’s really great to hear that! And feel free to reference this site to others that would like to learn more about this amazing medicine.


  • Arnica is used to treat all of these physical and mental symptoms? That’s crazy. Wow, I’ve never even heard of Arnica before. is this something that a doctor will recommend for you or is it something people use as a natural remedy rather than prescriptions? It’s clear there’s a lot of good it can do for you!

    • Hey jCamden,

      Allow me to answer point by point:

      1) Given that the person exhibits all or even most of the symptoms presented (excluding acute conditions), Arnica can definitely help.

      2) Yes, even many doctors are recommending Arnica for its amazing therapeutic uses


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