Details of Coix Combination
Job's Tears excretes edema from the lower body and legs.
Job's Tears excretes edema from the lower body and legs.

Alternative Names

  • yi yi ren tang
  • Coix Decoction
  • Coix Seed Decoction
  • i yi jen tang
  • i yi ren tang
  • yokuinin to
  • Yokuinin-tō
  • よく苡仁湯よくいにんとう
  • TJ52; TJ-52; TJ 52


  • supports joint health
  • supports low back and sciatica nerve

This recipe encorporates three actions:

  1. Disperses wind to address aches and pains that migrate about the body.
  2. Dries damp to address aches and pains that make the limbs or body feel heavy or numb or swollen. Also, aches and pains that are aggravated by humid (or “damp”) weather.
  3. Regulate the blood, which has a dual function of stimulating blood flow to address pain that is fixed in location and sharp in quality and moistening the blood to prevent damage to the blood when using the very drying herbs in this formula.


Ma Huang 麻黃 ephedra stem Herba Ephedrae (not included in online version)

Gui Zhi 桂枝 (Saigon) cinnamon twig, cassia twig Ramulus Cinnamomi Cassiae

  • These are the two herbs used to “disperse wind”. Wind is an airy moving kind of problem. When it enters the body, it is usually found somewhat superficially, just under the skin, however when it is unaddressed over time, that wind can venture more deeply and enter the joints. The nature of wind is to move, and thus the symptom associated with wind in the channels is “migrating arthralgia” or aches and pains that move from day to day or week to week. These two herbs generate a little sweat that pushes the wind out of the skin. Ma Huang (Hb. Ephedra) was abused by dietary supplement marketers and ended up causing some serious adverse events. As such, we’re not allowed to sell this online anymore. So only the Gui Zhi (Cinnamon twig) is included in this formula.

Yi Yi Ren 薏苡仁 coix seeds, Job’s tears Semen Coicis Lachrymae Jobi [don’t use if pregnant]

Cang Zhu 蒼术 atractylodes rhizome, cang shu Atractylodis Rhizoma

  • These two herbs slightly disperse wind (as mentioned above) but mostly drain or dry dampness. Dampness is another environmental pathogen (like wind) that can get into the body and cause problems. When dampness enters the acupuncture channels or the joints, it can cause a dull ache that also includes a sense of heaviness. Think of this like carrying a bucket of water in your body. Of course you’ll feel like your limbs or body is really heavy or weighed-down.

Dang Gui 當歸 tangkuei, Chinese angelica root Radix Angelicae Sinensis [supports pregnancy]

Bai Shao 白芍 white peony root, peony Paeoniae Radix alba [supports pregnancy]

  • These two herbs have two functions in this formula. The first is to address a particular kind of pain. Other herbs in this formula address wandering pain (wind) and dull heavy pain (damp). Given time, the wind-damp can cause a stagnation of blood flow through the joints. These two blood-regulating herbs address this blood stagnation pain which is more fixed in location and sharp in nature. The other function that these herbs to herbs perform is to prevent the dispersing and drying herbs in this formula from causing the blood to get dry and sluggish. These herbs prevent that side-effect.

Zhi Gan Cao 炙甘草 licorice root Radix Glycyrrhizae prep. [caution]

  • As usual, this herb is added to soften the harsh actions of the other herbs in this formula. The “Zhi” in the name of this herb means that it was fried in honey. This adds a protective action to the stomach. Not entirely sure why that is needed, probably the same reason as the blood regulating herbs that prevent the blood from drying up. This herb would prevent the stomach from getting dry too which is something of a common vulnerability in the stomach.
Recommended for these body types:

Slightly Hearty
Slightly Hearty
Recommended for these thermal natures:

Adult Dosage

This formula can be used to support health with or without symptoms. If symptoms are present, take 1 level teaspoon of the powder (8 capsules) three times daily. When symptoms are not present, take 1/2 level teaspoon (4 capsules), two times daily. Empty stomach is best for efficient absorption, but not essential. [More…]

At this dosage, your order will last approximately this long (?):

  • 100 grams powder (capsules or powder): 8 to 25 days
  • 200 grams powder (powder only): 19 to 56 days

Used for arthritis and urinary issues.

Availability status: in stock

Order Coix Combination
Additions for aches and pains

4 thoughts on “Coix Combination (yi yi ren tang)

  1. Been getting some enquiries about this formula in veterinary applications. There is some concern about this formula and a Canadian product that contained Ma Huang (Hb. Ephedra).

    My product does not contain any Ma Huang (Hb. Ephedra). I am unable to include that ingredient for online sales. It isn’t a poison, but it was misused by those seeking weight-loss or energy. Some people died, but the dosages that they were taking of ma huang were CRAZY high. Much higher than ever used in Chinese medicine. But like I say, there is no ma huang in the online version of this yi yi ren tang.

  2. Dosage for veterinary applications is: 1/2 teaspoon per 50 pounds of weight. This actually applies to people too. If your dog weights 100 pounds, use 1 teaspoon. If your husband weight 200 pounds, use 2 teaspoons, if you have a Sasquatch, Bigfoot, Yeti, or abominable Snow Monster in your backyard that you estimate weighs 300 pounds, you can use 3 teaspoons for said monster’s kvetches.

    In either case, 2 to 3x daily is suggested.

  3. My vet suggested yi yi ren tang for my dog, who is 18 lbs. According to your calcs above, I should give him between 1/8 and 1/4 tsp. How important is accuracy at this dosage? Also, is that amount per day or is that amount 2-3 times per day?

  4. I don’t think that the dosage is very specific. This dosage suggestion is at best, “ballpark”. I can give my human patients twice that dosage without much concern. People’s responses vary widely and so must the dosage.

    Yes, this dosage would be repeated 2 or 3 times daily.

    For the record, this is a 5:1 extraction ratio powder. Perhaps your vet can infer something from that information regarding dosage too.

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