It yields an essential oil formerly used in treating bruises and sprains and is often grown as a garden ornamental.
What is Arnica?
Narrowleaf arnica A. Article Media. Info Print Cite. Submit Feedback. Thank you for your feedback. See Article History. Learn More in these related Britannica articles:. Asteraceae , the aster, daisy, or composite family of the flowering-plant order Asterales. Arnica plants have a deep-rooted, erect stem that is usually unbranched.
Their downy opposite leaves are borne towards the apex of the stem.
The ovoid, leathery basal leaves are arranged in a rosette. The phyllaries a bract under the flowerhead has long spreading hairs. Each phyllary is associated with a ray floret. Species of Arnica , with an involucre a circle of bracts arranged surrounding the flower head arranged in two rows, have only their outer phyllaries associated with ray florets. The flowers have a slight aromatic smell.
If taken in the wrong dose it can be very dangerous. The seedlike fruit has a pappus of plumose, white or pale tan bristles. The entire plant has a strong and distinct pine-sage odor when the leaves of mature plants are rubbed or bruised. The species Arnica montana , native to Europe , has long been used medicinally, but the effectiveness of this use has not been substantiated.
Arnica montana contains the toxin helenalin , which can be poisonous if large amounts of the plant are eaten, and contact with the plant can also cause skin irritation. Accepted species: . Vomiting did not occur in any animal treated with Arnica , which demonstrates the lack of adverse effects of this agent. The fact that homeopathic medicines do not cause adverse effects is well documented.
Wound healing was normal in all groups; no evident edema, dehiscence or any other complications occurred.
Does Arnica Help with Pain?
Proportions of animals that did not permit using the von Frey filaments, including the thinnest 5mN , were lower in GK and GM 6. The latter three groups did not differ in this regard. GA30PO ; or 6x P. This indicates that ketoprofen and morphine were more efficient in controlling pain in the postoperative period and in avoiding the occurrence of hyperalgesia in cats undergoing HSO compared to Arnica in any of the three tested regimens.
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No difference was found in this regard among the three groups administered Arnica. Rescue analgesic was always administered one to four hours after surgery, without needing repetitions. Therefore, while Arnica may not be as efficient as an analgesic and for avoiding hyperalgesia as ketoprofen and morphine in the immediate postoperative period, it did not differ from the latter in the remainder of the time, i.
This fact is shown by the observation that rescue analgesia was not needed during that period of time. In the present study, although Arnica was not as efficacious as morphine and ketoprofen in the first six hours after surgery, it may be useful for use at home after this period, because it is known that animals treated with analgesics benefited for up to 56 hours after HSO compared to untreated animals BRONDANI et al.
Regarding the investigated routes of administration, SC administration did not show any advantage over the oral one, for which there is no justification for the use of injected Arnica , except when oral delivery is not possible. Similarly, there was no difference between the two tested potencies 6x and 30x ; thus, they may be used indistinctly.
The scientific status of homeopathy is controversial. These findings may suggest that homeopathic medicines are more effective in dogs than in cats because, according to the homeopathic principles, the time to the onset of the effect is immediate BENEZ, While Arnica is indicated in traumatic injuries, here its effect on acute pain in the immediate postoperative period was not as satisfactory as expected.
Two hypotheses may explain our results: 1 Arnica does not exert a satisfactory analgesic effect in the HSO postoperative period in cats, as about half of the animals required rescue analgesia, while perhaps the remainder of the cats did not need rescue medication as a function of the preventive analgesic effect of fentanyl, used in the induction of anesthesia GORNIAK, ; and 2 the anti-inflammatory effect of Arnica is delayed, as KAWAKAMI et al.
However, in that study, no fentanyl was administered.
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- Other kinds of pain.
As a function of the experimental conditions of the present study, it may be concluded that ketoprofen and morphine were more efficacious than Arnica and that there was no difference among the various potencies and routes of administration of Arnica relative to postoperative analgesia in cats undergoing HSO. Homeopathic Arnica therapy in patients receiving knee surgery: results of three randomized double-blind trials. Journal of Complementary Therapies Medicine, v. Accessed: Nov.
Analgesic efficacy of perioperative use of vetaprofen, tramadol or their combination in cats undergoing ovariohysterectomy. Journal Feline Medicine Surgery, v.
Accessed: Apr. Refinement and initial validation of a multidimensional composite scale for use in assessing acute postoperative pain in cats. American Journal of Veterinary Research, v. Accessed: Jan. Validity and responsiveness of a multidimensional composite scale to assess postoperative pain in cats.narcebarbeben.gq
Arnica montana - Wikipedia
Reliability and cut-off point related to the analgesic intervention of a multidimensional composite scale to assess postoperative pain in cats. Subjective and objective measurements of postoperative pain in cats. Journal of American Veterinary Medical Association, v. Analgesic and anti-inflammatory effects of Arnica montana 12CH in comparison with ketoprofen in dogs. Veterinary clinical research database for homeopathy: placebo-controlled trials. Complementary Therapies in Medicine, v. No effect of a homeopathic combination of Arnica montana and Bryonia alba on bleeding, inflammation, and ischaemia after aortic valve surgery.
British Journal of Clinical Pharmacology, v.
Comparison of the effects of buprenorphine, oxymorphone hydrochloride, and ketoprofen for postoperative analgesia after onychecyomy or onychectomy and sterilization in cats.