Corydalis (Yanhusuo) Rhizome

The tuber contains more than 20 active alkaloids the most active of which are the cordalines tetrahydropalmatine (THP) and protopine. The alkaloids provide the herb with an analgesic effect that is about 1/10 of the strength of opium or 1/100 of the strength of morphine. The mechanism for its analgesic effect is similar to that of morphine inhibiting the reticular-activating system in the brain stem but without impacting opiate receptors.
Chinese researchers report that 75 mg of THP daily was effective in reducing nerve pain in 78% of the patients tested. Although the herb is far weaker than its stronger narcotic cousins it is safer and still has value in pain and stress relief and as a sedative for insomnia. Corydalis can also be very sedating and therefore useful if there is insomnia associated with the pain.
 In insomnia patients sleep was induced within 20-30 minutes after oral administration of 100-200mg dl-THP without subsequent dizziness or vertigo. Because of its usefulness in blood deficiency as well as in pain relief it is an ideal herb for menstrual pain relief. Chinese researchers have demonstrated success in treating painful menstruation (dysmenorrhea) abdominal pain after childbirth and headache with THP. THP's analgesia and sedation have been shown to work at least in part by blocking postsynaptic dopamine receptors in the central nervous system. Unlike tranquilizers though it does not affect brain serotonin levels deplete monoamine stores or block GABA receptors.
It also has been shown to stimulate the secretion of ACTH (adreno-corticotrophic hormone) by the pituitary gland which controls aspects of stress. THP also has very valuable cardiovascular actions. It has been shown to decrease the stickiness of platelets thereby protecting against stroke. It has also been shown to lower blood pressure and heart rate. THP also has been shown to have a muscle relaxing effect working on smooth muscles as well as skeletal muscles. It reduced coronary resistance increased coronary bloodflow and dilated coronary blood vessels in rabbits cats and mice. The cumulative effect is to promote rhythmic efficiency. This in effect vasodilation has been shown to be very helpful with migraine.
Corydalis is also useful for stomach ulcers in that it helps decrease gastric secretions. In a large Chinese demonstration patients with stomach and intestinal ulcers or chronic inflammation of the stomach lining were given a 90–120 mg extract of Corydalis daily equal to 5–10 grams of the crude herb. 76% found significant healing and pain relief. Side effects of Corydalis are minimal and toxicity is low although CNS depression has been reported at high dosage levels. The herb does not affect liver or renal functions blood pressure or heart rate; and side effects associated with morphine such as nausea respiratory suppression and addiction are absent.
Use during pregnancy is contraindicated. This is 2's nitrogen-flushed vacuum pack. Used as an infusion decoction extract and tincture. Corydalis is a relative of the opium poppy that contains similar pain-killing alkaloids but which are non-addictive as well as analgesic. This herb is traditionally combined with the Peony and Licorice (Shaoyao Gancao Tang) in equal amounts to make the basic formula for treating spastic pain – also combined with Coptis and Evodia and the traditional Pteropus and Bulrush (Shixiao San) used for abdominal pain menstrual pain and pain due to injuries.
Plum Flower is one of the most distinguished herb houses in the world. Sulfur Free Chlorine Free Aluminum Phosphate Free. Sulfites are used to give herbs the appearance of freshness. As with dried fruit unsulfured herbs look different than those that are adulterated with preservatives. Herbs that are preservative free are more natural looking and are generally darker. The brightness of the herbs may be appealing but it indicates the presence of harmful additives. Despite their appearance unsulfured herbs are more fresh and safer than regular commercially available products. The use of sulfur chlorine and aluminum phosphate was made unnecessary through the establishment of Plum Flower processing stations in China. Herb harvesters slice and process the herbs fresh avoiding the need to rehydrate dried herbs later to process. This first step is crucial as rehydration leads to decomposition and thus the need for preservatives. The herbs are then packed and the packages vacuum-packed injected with nitrogen and sealed. The nitrogen process combined with the lack of sulfur treatment inhibits the growth of anaerobic organisms resulting in safer higher quality herbs. After opening store in a cool dry place. The facilities in Lanzhou and Guang Zhou China scientifically test each batch of herbs before during and after the processing to make sure that all the active ingredients are present. Herbs are also tested to ensure that the formulas surpass all FDA guidelines regarding heavy metals. Those herbs exported to the U.S. are voluntarily submitted to the FDA for approval. Finally batches are regularly sent out for quality control testing in third-party labs to double-ensure that Plum Flower products are 100% free of pharmaceuticals preservatives and dyes. The Lanzhou and Guang Zhou factories are so clean they are certified by the Australian Government’s Therapeutic Goods Administration (GMP). These standards surpass any of the FDA and are considered the highest for any government agency in the world.

We also offer Corydalis 10X Extract and encapsulated pills.

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Our Corydalis specimens are sold for legitimate ethnobotanical research purposes only and are not intended for human consumption! By ordering you are automatically agreeing to our terms and conditions.