Tinnitus-Ringing in the Ear, Treatment Options From Many Traditions

The Western allopathic approach to tinnitus is dramatically different from either Western Herbalism or Traditional Chinese Medicine in addressing this condition.

Western Allopathic Medicine: Tinnitus is the perception of sound when no actualindex3 external noise is present. Tinnitus is a non-auditory, internal sound that can be intermittent or continuous, in one or both ears, and either a low or high-pitch sound. The sounds of tinnitus have been described as whistling, chirping, clicking, screeching, hissing, static, roaring, buzzing, pulsing, whooshing, or musical. The volume of the sound can fluctuate and is often most noticeable at night or during periods of quiet. Tinnitus is often accompanied by a certain degree of hearing loss.

Tinnitus can be either an acute or temporary condition, or a chronic health malady. Millions of Americans experience tinnitus, often to a debilitating degree, making it one of the most common health conditions in the country. The U.S. Centers for Disease Control estimates that nearly 15% of the general public, over 50 million Americans, experience some form of tinnitus. Roughly 20 million people struggle with burdensome chronic tinnitus, while 2 million have extreme and debilitating cases.

In general, there are two types of tinnitus:

  • Subjective Tinnitus: Head or ear noises that are perceivable only to the specific patient. Subjective tinnitus is usually traceable to auditory and neurological reactions to hearing loss, but can also be caused by an array of other catalysts. More than 99% of all tinnitus reported tinnitus cases are of the subjective variety.
  • Objective Tinnitus: Head or ear noises that are audible to other people, as well as the patient. These sounds are usually produced by internal functions in the flow of blood or muscular-skeletal systems. It is often more like the sound of a heartbeat or pulsating. This type of tinnitus is very rare, representing less than 1% of total tinnitus cases.

index2Some medications such as aspirin, ibuprofen, certain antibiotics, and diuretics can be “ototoxic” or cause damage to the inner ear, resulting in tinnitus.

Other possible causes of tinnitus are:

  • Head and neck injuries
  • Loud noises,
  • Ear infections
  • A foreign object, or earwax touching the eardrum
  • Eustachian tube (middle ear) problems
  • TMJ disorders
  • Stiffening of the middle ear bones
  • Cardiovascular disease
  • Diabetes
  • Traumatic brain injury

There are also potential risk factors including the following:

  • Noise exposure from work, headphones, concerts, explosives
  • Smoking
  • Gender – men are affected more than women
  • Hearing loss
  • Age – older individuals have a higher likelihood of developing tinnitus

There is currently no scientifically valid cure for most types of tinnitus. There is, however, remedies that focus on diverting attention, addressing the emotional impact, and or cognitive therapy.

Western Herbalism: Tinnitus can serve as an important marker pointing to other potential health issues, since it a symptom and not a disease. Whatever the cause it tends to worsen in times of tension, stress and or muscle spasms. Stimulates like caffeine or nicotine, which increases vasoconstriction, can exasperate it. Furthermore, it can be caused by damaged fine hair cells of the inner ear. Although this cannot be reversed there might we some reduction felt in using some of the suggestions below. Stress reduction can often be helpful. Some herbs have been used to address tinnitus including black cohosh (Cimicifuga racemosa), goldenseal (Hydrastis canadensis) and more recently ginkgo (Ginkgo biloba).

Traditional Chinese Medicine (TCM): In TCM we know that the images6kidney qi communicates with the ears and that as we age or because of various states of health this can affect our qi, therefore the kidneys are often identified as root causes of tinnitus.

In approaching treatment of tinnitus, it is important to distinguish between an acute or sudden occurrence or a long-term tinnitus that gets worse over time or comes and goes. Furthermore, it is important to determine whether it is an excess-type or a deficiency-type of tinnitus. A key to this determination is that an excess type of tinnitus is often experienced in only one ear, while a deficiency based tinnitus tends to develop in both ears. The deficiency type usually gets better during the day and gets worse at night. A combination of deficiency and excess syndromes is possible, especially in persons with other illnesses or with tinnitus that has persisted for several years.

The following is a description of excess and deficiency patterns that might be able to better pinpoint treatment principles to be used.

Excess type #1, Hyperactive liver and gallbladder fire:

  • Sudden onset
  • Continual sound
  • Excess symptoms (a headache, flushed face, irritability)
  • Excessive anger, fright
  • Excessive use of alcohol

TCM formula: Long dan Xie Gan Tang (Gentiana Comb) with the addition of moutan, ligustrum, for persistent liver fire weakening the Kidney water.

Excess type #2, Phlegm Fire Syndrome

  • Intermittent ringing in the ears
  • Feeling of blocked ears
  • Chest stuffiness
  • Excess phlegm
  • Dizziness
  • Blockage manifesting as difficult urination or constipation

TCM formula: Wen Dan Tang (Bamboo and Hoelen Comb)

  • with the addition of pear, haliotis, uncaria (liver)
  • with lapis, scute, rhubarb and aquilaria (blockage of chest, constipation)
  • with dampness (Ban Zia Bai Zhu Tian Ma Tang)

Diet: avoid fat or spicy food

Deficiency type #1, Deficient Kidney Jing

  • Gradual worsening ringing
  • Dizziness
  • Backache
  • Deficient heat symptoms

TCM formula: Liu Wei Di Huang Wan (Rehmannia Six Formula) and schizandra.

TCM formula Er Long Zuo Ci Wan (Tinnitus Left Supporting Pills)

Deficiency type #2, Sinking Spleen Qi (yang def.)

  • Intermittently occurring tinnitus that is relieved through rest and reduced stress
  • Low energy
  • Poor appetite
  • Loose stools

TCM formula: Yi Qi Chong Ming Tang (Ginseng, Astragalus and Pueraria Comb.)

Lifestyle: stress reduction, adequate kidney and spleen building dietimages5

Ear Massage: There are several sites that have detailed directions for addressing tinnitus through massage:

The bottom line is that the early intervention is necessary for long-term success. If you are experiencing any of the symptoms outlined in any of the treatment options, seek the advice of a Physician or Clinical Herbalist (http://www.americanherbalistsguild.com/herbalists-and-chapters-near-you)

Sources:

Davis, Kathleen FNP. 2016. Tinnitus: Causes, Symptoms, and Treatment. The University of Illinois-Chicago, School of Medicine. Available from

http://www.medicalnewstoday.com/articles/156286.php

Flaws, B Sionneau P. 2001. The Treatment of Modern Western Medical Disease with Chinese Medicine. Blue Poppy Press. p. 55-56.

Hoffmann, D. 2003. Medical Herbalism. Healing Arts Press. P372-373.

Dharmananda, S. Ph. D. 1998. Treatment of Tinnitus, Vertigo, and Meniere’s disease with Chinese herbs. Institute for Traditional Medicine. Available from http://www.itmonline.org/arts/tinmen.htm

 

 

Herbal Tinctures: Getting or Giving the Right Dose

tincturesHerbal tinctures are the backbone of Western herbalism.  Generally, herbal tinctures are made from herbs extracted with a combination of alcohol and water, although glycerine and vinegar can also be used.  They are widely available, economical to produce and use, compact enough to stock in considerable variety and have a good shelf life. They can be combined and are convenient to take.   Dried herbs start to loose their potency after 6 months yet tinctures can last up to 10 years or more.  As a primarily Traditional Chinese Medicine herbalist, I mostly rely on concentrated decoctions, but in some cases when I am working with aerial parts of  plants, or herbs that could benefit from the effects of alcohol, increasing circulation, tinctures are more appropriate.

This posting is based on tinctures made using the weight to volume method.

Understanding dosage rates are important in achieving therapeutic outcomes.  I find that if someone isn’t responding to an herbal formula then analyzing their dosages can be helpful.

As a starting point most commercially available herbal tinctures indicate the weight to volume ratio.  For example, if the label states that it is a 1:5 extraction, this indicates that 1 gram (weight) of herb is equivalent to 5 milliliters (volume) of liquid.

A tincture formula will state the herb and the ratio of herb (by weight) to solvent (by volume), and the % alcohol (ethanol) in water.

Having this information is crucial in understanding the amount of herb that you are recommending or taking per dose.  Furthermore, this information is required by law to appear on the label. along with the serving size suggestion, which we will discuss further on.

In trying to communicate dosage equivalencies I have developed the following chart based on weight to volume ratios.  The side column indicates the common ratios and the top row indicates the volume of tincture consumed (in milliliters).  For example, if you took 1 milliliter of liquid made at a ratio of 1:2 then you would be ingesting a half of a gram of herb.

Tincture Dosage Equivalencydosage ratioSuggested Use:  Different companies have different suggested dosage rates.   Some companies suggest taking a dropper full and others recommended taking a range of drops as a serving size, for example, 20-60 drops.  When a dropper full is suggested the amount consumed depends on the size of the bottle and dropper.  When the suggested dosage on the bottle indicates a number of drops per dose, the amount consumed depends on the viscosity of the liquid.  Since this can change from one company to the next the best we can do is to have an understanding of some equivalents  recognizing that this is an approximation:

  • 20 drops = 1 ml
  • Dropperful from a one-ounce bottle—30 drops
  • Dropperful from a two-ounce bottle—40 drops
  • 5 ml = 1 teaspoon
  • A one-ounce bottle holds approximately 30 ml, 6 teaspoons, 30 dropper full, and 1,000–1,200 drops.

For example if using the suggested serving of 40 drops, and 20 drops = 1 milliliter, then you are taking approximately 2 milliliters of a 1:5 tincture and getting approximately .4 grams of herb per dose.  Most commonly it is recommended to take the tincture two to three times a day, so using this same example you  would be consuming between .8 and 1.2 grams of herb per day. Knowing the actual amount of herb that is recommended on a daily basis will help with putting the this into context.  Below is a partial list of recommended daily dosage of some common herbs.

Examples of dosages of some common herbs*:

Herb Daily Dosage
Angelica archangelica 3-9 grams
Ashwagandha 3-12 grams
Astragalus 6-15 grams
Black Cohosh 3-9 grams
Burdock 3-10 grams
Codonopsis 9-30 grams
Dandelion 9-30 grams
Dang Gui 3-15 grams
Echinacea 3-9 grams
Grindelia 3-6 grams
Hawthorn Berry 6-12 grams
Lemon Balm ½-6 grams
Motherwort 10-30 grams
Oregon Grape Root 3-9 grams
Passion flower 3-9 grams
Skullcap 3-9 grams
St. Johns Wort 3-9 grams
Uva Ursi 3-6 grams
Valerian 3-6 grams

* Planetary Herbology, Michael Tierra

In some circles there has been a discussion that the use of alcohol potentizes the action of the herbs, therefore less herb is needed.  Furthermore, the synergistic action of herbal combinations or formulas also increases effectiveness requring less herb.  These are great discussions but I work with aspiring herbalists who are often confused as to how to determine or convert tinctures to actual grams of herbs.  I hope that this helps and would encourage you to take a moment to actually consider that you might not be taking enough herbs to be effective.

Related blog post:  https://herbalgoddessmedicinals.wordpress.com/category/herbal-preparations/

Up coming blog:  How to make tinctures using the weight to volume method.

 

 

More Than Medicinal: Herbal Love Medicine

I recently finished teaching a wildcrafting class on medicinal herbs of Central Oregon. This year I incorporated other cultural uses of plants, in particular, focusing on “Love Medicine”.love   Native peoples used plants, not only as medicine, but also for their ability to affect an outcome. Daniel Moerman, author of Native American Ethnobotany, offers a compilation of ethnographies with over a hundred stories of tribal use of plants including ceremonial, hunting, witchcraft and love medicine.

The term love medicine was used for plants that were often suggested by tribal healers, elders or through the oral transfer of information to have powers beyond their medicinal attributes. Both men and women would use various plants as love charms to lure potential suitors or hold the attention of a “special person”.   In researching this topic it is a bit murky how the plants were utilized. In some cases special perfumes were prepared, in others, rituals were conducted with specific plants. In the book Plains Apache Ethnobotany by Julia A. Jordan people spoke about tribal members who specialized in preparing “love medicines”. In this book, the author describes the use of perfumes that were worn during certain times and specific places. In Daniel Moerman’s book he briefly describes how various plants were used or prepared. As contemporary herbalism as evolved over the last century, many of these spirit-based uses are being lost to us. With that in mind, here are some plants surrounding Central Oregon and how they were used as “love medicine”.

Aquilegia formosa

Aquilegia formosa

Various species of columbine were used as Love medicine. Western Columbine (Aquilegia formosa) was used by the Thompson Indian’s who used it as a charm for women “to gain the affection of men”. The Pawnee along with the Ponca’s used the crushed seeds of columbine, as a love charm also used columbine as love medicine.

larkspur

Delphinium menzieessi

Larkspur, (Delphinium menziessi)- a plant that was toxic to livestock and considered poisonous ironically was used for love medicine. The Thompson tribe’s women used it “to help them obtain and hold the affection of men”, although it wasn’t clear on how it was utilized.

MeadowrueMeadowrue, of which Central Oregon has a few species was not used by local tribes but was used by the Potawatomi as both hunting and love medicine. The seeds were mixed with tobacco by and smoked by men when going to call upon a favorite lady. Meadowrue, (Thalictrum occidentale), was used by the Thompson as a poultice on open wounds for healing. Meadowrue’s root contains berberines, one of the few plants aside from Oregon Grape Root to contain that particular constituent. It was used to loosen phlegm, as blood medicine, and as an analgesic. The powdered fruits were mashed into a paste with water and used on the skin and hair.

spreading-dogbane-apocynum-androsaemifolium-01

apocynum-androsaemifolium

Spreading Dogbane (Apocynum androsaemifolium)-although considered toxic was used extensively by Native Americans as love medicine. The Okanagan-Colville tribe chewed the leaves and the juice, as well as, smoked the dried leaves as an aphrodisiac (Not advised). If you break a spreading dogbane stem or leaf, you will see that the plant contains a bitter, sticky, milky white sap. The sap contains cardiac glycosides that are toxic to humans. The root also contains a potent cardiac stimulant, cymarin. These toxic compounds help protect spreading dogbane from grazing animals. Despite its toxicity, the plant has been used medicinally for a variety of ailments. However, this plant is best enjoyed for its beauty and not as a medicine. Native Americans used the tough fibers of this and other native dogbanes to make threads and cord.

Platanthera leucostachys_Mono Lake Cty Park_2002-07.05

Platanthera leucostachys

Bog Orchid (Platanthera leucostachys)-a plant we recently identified in the Ochoco Mountains, was used extensively by the Thompson tribe as a wash for various joint and muscle aches. It was used in the sweat lodge for rheumatism. Women “hoping to gain a mate and have success in love” used the Bog Orchid as love medicine as a wash. Although I could find no report of its toxicity, it was only used externally, so beware.

arrowhead

Sagittaria latifolia

Arrowhead, (Sagittaria latifolia) which is found in northern Jefferson County and on the west side crest of the Cascades was used as love medicine by the Thompson is usually found at the margins of ponds or marshes. The enlarged rounded starchy tubers from the plant form at the ends of underground plant runners (rhizomes). When dislodged from the mud, these tubers will float to the surface. They are edible, and may be boiled or baked and eaten as a potato-like food. Native Americans harvested and consumed these tubers, which in some areas were known as wapato. The Thompson spoke about its use as a love charm and for witchcraft.

pineappleweek

Matriciaria disoidea

Pineappleweed (Matriciaria disoidea)- was used by native peoples ranging from Alaska to Montana. A close relative to German Chamomile it had similar uses for digestion and fevers.   Native peoples used the aromatic plants as perfume, sometimes mixing them with fir or sweet-grass and carrying the mixture in small pouches to concentrate the fragrance. Pineappleweed, provided a pleasant smelling insect repellent, and the fragrant dried plants were used to line cradles and stuff pillows.  The Okanagan-Colville buried the tops of Pineappleweed mixed with human hair to prevent loved ones or relations from going away.

prairie smoke

Geum triflorum

Prairie Smoke or three-flower avens (Geum triflorum)-is in the rosaceae family; so that tells us that it probably has astringent actions. Avens were used by many native peoples ranging from toothache remedies, fevers, antidiarrheal, gastrointestinal and as a gynecological aid. Primarily the roots were used. Several tribes used it for love medicine, including the Iroquois, who used the compounded roots as an emetic to vomit and cure themselves of love medicine. The Okanagan-Colville used and infusion of the roots as a love potion by a woman who wanted to win back the affection of a man. Mathew Woods wrote about it in his book The Earthwise Herbal: A Complete Guild To New World Medicinal Plants. He spoke about the roots of avens containing phenols, tannins and essential oil, along with noting that he felt Prairie Smoke has an affinity to the female system: the latter for Stagnant blood .

sierra shoot star

Dodecatheon jeffreyi

Last but not least Sierra Shooting Star or Tall Mountain Shooting Star (Dodecatheon jeffreyi) was used as love medicine by the Thompson tribe. Women used the flowers “to obtain the love of men and to help them control men”.

This is just a small sampling of the vast number of plants that were utilized. As the profession of herbalism evolves in North America there is greater and greater emphasis being put on evidenced based medicine and a movement away from traditional knowledge along with the reduction in the number of the plants that are used in commerce. Despite this tendency towards retraction, my hope is that we continue to keep love 2plant stories, and other cultural values which plants offer, alive.

Calamus-Smart Soup, Brain Protectant and Traditional Uses

Calamus, Sweet Flag, Acorns calamus, Vacha, Shi Chang Pu, rhizoma acori tatarinowii(石菖蒲)

Recent research from the Chinese Academy of Sciences’ Institute of c4f6301f8e8504f05b68c1b5d558dacdBiochemistry and Cell Biology in Shanghai found a traditional Chinese medicine known as smart soup (聰明湯) could help in the fight against Alzheimer’s disease, of which calamus was one of the ingredients.  The soup, which is a Traditional Chinese Medicine (TCM) formula used for many centuries and is still prescribed by Chinese medical physicians to patients with aging-related cognitive impairment.  Smart Soup is officially documented in Gu Jin Yi Jian, a book published in 1576.  It is composed of Rhizoma Acori Tatarinowii (calamus), Poria cum Radix Pini and Radix Polygalae.  Calamus has been shown to exhibit a neuroprotective action and attenuate learning and memory deficits.  According to the research the scientists found the smart soup, or more specifically radix polygalae, could significantly reduce the generation of amyloid beta, with the levels in treated mice more than 18 per cent lower than in those untreated.  They found that the other two herbs – rhizoma acori tatarinowii (calamus) and poria cum radix pini – appeared to protect the neurons against the damaging effect of ama.

index1According to Traditional Chinese Medicine (TCM) calamus is aromatic, acrid, bitter and warm. It belongs to the category of aromatic substances that open the orifices and enters the Heart and Stomach channels. It strengthens the Spleen and Stomach, opens the sensory orifices, dislodge phlegm, transforms dampness, calms the spirit, enhances digestion, and promotes blood flow and movement of Qi. It is often used in the treatment of dizziness, dulled senses, stupor and coma.  It has been combined in many other formulas including:

1) Di Tan Tang from Ji Sheng Fang (Life-saving prescriptions). It is combined with Ban Xia (Pinellia), Tian Nan Xing (Arisaema), Ju Hong (Exocarpium Citri Erythrocarpae), etc. to treat stoke due to phlegm confusing heart, unconsciousness, and a hardened or stiff body of the tongue impeding speech.

2) Chang Pu Yu Jin Tang from Wen Bing Quan Shu (Complete Compendium of Warm Disease). It is formulated with Yu Jin (Tumeric Tuber), Pinellia, Zhu Li (Succus Bambusae), etc. to cure blocking of phlegm-heat, high fever, coma, and delirium.

3) Qing Xin Wen Dan Tang from Gu Jin Yi Jian (Mirror of Ancient and Contemporary Medicine). It is coupled with Zhi Shi (Citrus Aurantium), Zhu Ru (Bamboo Shavings), Huang Lian (Coptis Root), etc. to heal epileptic seizures caused by phlegm-heat.

4) Ru Lian Po Yin from Huo Huan Lun (Treatise on Cholera). It is matched with Coptis, Hou Po (Magnolia Bark), etc. to treat dampness forming with heat, retention of damp-heat, vomiting and diarrhea accompanied with fever, chest and epigastric fullness and distress, and yellowish glossy coating of the tongue.

5) Kai Jin San from Yi Xue Xin Wu (Medical Revelations). It works with Coptis, Fu Ling (Poria), Shi Lian Zi (Sinocrassula indica seed), etc. to cure no desire to eat and rectal tenesmus after dysentery due to the accumulation of damp turbidity and heat toxic in colon.

6) Bu Wang San from Zheng Zhi Zhun Sheng (The Level-line of Patterns and Treatment) and Kai Xin San from Qian Jin Fang (Thousand golden essential prescriptions). Both of them are equipped with Ren Shen (Ginseng), Poria, Chang Pu (Acorus calamus), etc. to heal forgetfulness.

The article on smart soup peaked my interest, in that I knew that calamus also played an extensive role in Ayurveda herbal traditions, as well as, in Native American use.

Calamus, is a tall perennial, wetland monocot in the Acoraceae family.  It index4is a strongly aromatic, semi-aquatic perennial herb with a ginger-like stem which spreads into the ground. Originating in Asia it was widely exported across the globe.  The leaves and rhizomes have been used medicinally and as a substitute for ginger, cinnamon and nutmeg.  The aroma of calamus essential oil is valued in the perfume industry while its, crystallized form, is called “German ginger”.

index6In Native American traditions calamus has been extensively used for a variety of conditions and is considered by some tribes as a panacea herb or cure-all.  Used by Canadian, northern and mid western tribes, its use ranged from treatment of digestive issues to blood medicine and everything in between.  The Cherokee, from which I descend, used it for headaches, diarrhea, gas, colic, colds, kidney disease, worms and urinary infections.  It was ground up and mixed with tobacco and smoked for headaches by the Blackfoot. An infusion of the roots along with chokecherry was taken for coughs by the Algonquin tribe from Quebec.  Not only used internally calamus was used in charms for keeping spirits away, to protect warriors, keep children safe and as hunting medicine by the many of these tribes.  The most common use of calamus throughout all tribes was as a carminative, tooth aches, cold remedies, and sore throats.  In a review of ethnographic records, it had limited use as a herb for improving clarity of thought , although the Rappahannock specifically used the fresh juice as a tonic for older people and several other tribes considered it a beneficial tonic.

In western pharmacology it is classified as a stimulant, emetic, nauseant, stomachic, aromatic, expectorant, carminative, antispasmodic and nervine sedative, antioxidant and antimicrobial.

acorus%20calamus%20(2)In Ayurveda calamus is known as Vacha.  It has been used in nervous system issues and for mental and emotional disorders.  It has been used to quite the mind especially in the case of disorders characterized by an impairment of concentration such as ADD and ADHD.  As in other herbal traditions it is used in digestive disturbances.  Todd Caldecott, an esteemed herbalist specializing in Ayurveda, wrote an extensive monograph about its use.  In Ayurvedic tradition, Vacha is a ‘sattvic’ herb in its action as a stimulating nerve tonic that helps support brain functioning. It is also used as a rejuvenate for the brain and nervous system, it is used to promote cerebral circulation and to help support overall brain health and functioning. It has long been used to counter the effects of drug use, as in the case of heavy marijuana use, from fatty tissues within the liver, nervous system and brain. It is often used in post-Stroke (CVA) recovery protocols in the treatment of aphasia.

There has been some concerns regarding its safety. Calamus and products derived from it (such as its oil) were banned in 1968 as food additives and medicines by the United States Food and Drug Administration. Per the FDA’s website “Food containing any added calamus, oil of calamus, or extract of calamus is deemed to be adulterated in violation of the act based upon an order published in the Federal Register of May 9, 1968 (33 FR 6967)”. 

Jim McDonald a highly respected herbalist wrote extensively on calamus and is excellent reading.  According to information from his website and through info gleaned various other internet searches the ban was the result of a laboratory study that involved supplementing the diets of rodents over a prolonged period of time with massive doses of isolated chemicals (?-asarone).  The subject animals developed malignant tumors, and the plant was thereafter labeled procarcinogenic, although it  is not clear whether the observed carcinogenic effect in rats was relevant to the human organism, particularly given the large dosages and protracted duration of the regimen. Most authorities advise against ingesting the Indian Jammu strain. (Four varieties of Acorus calamus strains exist in nature; diploid, triploid, tetraploid and hexaploid. Acorus calamus americanus is widely used and believed completely safe in appropriate therapeutic dosages). No health hazards or side effects are known in conjunction with the proper administration of designated therapeutic dosages of Calamus of European or American origin (triploid strain, up to 15% beta- asarone in volatile oil)  but long-term use of this herb should be avoided and use should be intermittent.

Other sites with extensive information on calamus:

http://www.herbcraft.org/calamus.htmlhttp://toddcaldecott.com/herbs/vacha/

http://www.mariatrebenherbs.com/?pid=55&sid=57:CALAMUS-SWEET-FLAG

use as essential oil-http://oilhealthbenefits.com/calamus-essential-oil/

Information on Smart Soup Research

ww.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0111215

Seeds available through Horizon Herbs

https://www.horizonherbs.com/product.asp?specific=384

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