1) It's not homeopathic. Taking 9 grams of those herbs is going to have a physiological effect (a chemical effect based on active molecules). Homeopathy is based on a belief in a 'water memory' effect that cannot be replicated in scientific experiments.
2) Angelica has long been used for migraines and other headaches. It contains ingredients which act as phytoestrogens (somewhat like kudzu) and coumarins that are mild blood thinners which may have an effect on clusters according to very preliminary research and a few anecdotal reports here (Firebrick from NZ).
3) Very interesting report on Corydalis blocking trigeminal nerve pain in lab animals below. It seems to work on the cannabinoid receptors, though in a different way than cannabis.
Quote:[Analgesic effect of Corydalis yanhusuo in a rat model of trigeminal neuropathic pain.]
Nan Fang Yi Ke Da Xue Xue Bao. 2010 Sep;30(9):2161-4.
Huang JY, Fang M, Li YJ, Ma YQ, Cai XH.
Department of Stomatology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.E-mail:cxiaohui12@126.com.
Abstract
OBJECTIVE: To evaluate the analgesic effect of Corydalis yanhusuo on trigeminal neuropathic pain.in a rat model.
METHOD: Rat model of trigeminal neuralgia pain were established by inducing chronic constriction injury (CCI) of the infraorbital branch of the trigeminal nerve (ION). The effect of Corydalis yanhusuo, a traditional Chinese medicine, in ameliorating the pain was tested. Western blotting was performed to investigate the change of cannabinoid CB1 receptors in the Vc the injury of the infraorbital branch of the trigeminal nerve (ION-CCI). CB1 receptor antagonist AM 251 was applied to observe its effect on the analgesic effect of Yanhusuo.
RESULT: Administration of dl-THP (2 mg/kg) intraperitoneally increased the response threshold and the cut-off threshold to the mechanical stimulation in ION-CCI rat models. ION-CCI induced an upregulation of cannabinoid CB1 receptors within the ipsilateral of Vc. The effect of Yanhusuo was antagonized by the application of AM 251.
CONCLUSION: The analgesic effect of Yanhusuo involves the participation of CB1 receptors, suggesting that Yanhusuo may offer a useful therapeutic approach for trigeminal neuropathic pain.
PMID: 20855279
Here's an article that shows that an angelica/corydalis combination is more effective than either herb alone. Angelica increased the levels of corydalis chemicals in the blood.
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I remember reading about some problems related to one of the active ingredients in corydalis a decade or two ago. As I recall, it was a synthetic, highly concentrated form of one of the active ingredients that was being sold in Asia. I don't think that there were problems with the herb itself, rather people were taking hefty doses of the pure chemical THP, but I am not 100% sure on that.
Quote:Are there any side effects or interactions?
Corydalis should not be taken by pregnant or nursing women. There have been several reports in Western journals of THP toxicity, including acute hepatitis. In addition, people taking corydalis can experience vertigo, fatigue, and nausea.
At the time of writing, there were no well-known drug interactions with corydalis.
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Came across several references to this herb interfering with embryo development and pregnancy - people who are reproductively active should definitely be careful with it.
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Herbs as abortive treatment (Read 1116 times)
