What is Huo Ma Ren? Are Bai Zi Ren, Yu Li Ren and cannabis flower the same?
Official Huo Ma Ren (火麻仁) is the dried ripe fruit of Cannabis sativa. The pharmacopoeial name is Cannabis Semen, also called Ma Zi Ren. The medicine is the seed, not the flower or leaf. Bai Zi Ren is sweet and neutral: nourishes the Heart, calms the spirit, moistens the intestines and frees the stool. Yu Li Ren is acrid-bitter-sweet and neutral: moistens the intestines, frees the stool, promotes urination and reduces swelling. Write Huo Ma Ren. Use caution in Spleen-vacuity loose stool.
What are the TCM properties and traditional uses of Huo Ma Ren?
According to the Chinese Pharmacopoeia, Huo Ma Ren is sweet and neutral, enters the Spleen, Stomach and Large Intestine channels, and acts to moisten the intestines and free the stool. It is used for Blood vacuity and fluid depletion with intestinal dryness and constipation. Sweet, neutral and moistening, it suits fluid-depleted intestinal dryness—not Spleen-vacuity loose stool or yang-vacuity slippery diarrhea.
How do you choose raw versus dry-fried Huo Ma Ren? Can Bai Zi Ren replace it?
Raw seed moistens the intestines more strongly. Dry-frying reduces the oil and is relatively better when the Spleen tends to be weak. Crush it for decoction. Arborvitae seed also calms the Heart; it cannot replace simple intestinal moistening by equal weight. Commercial hemp-seed oil is not equal-weight pieces.
What is the usual dosage? Can it be drunk daily as a stool tea?
The pharmacopoeial decoction dose is 10–15 g. It is not a four-season “hemp-seed stool tea.” Spleen-vacuity loose stool only loosens further as it moistens. Constipation needs a practitioner to name a short course; it does not replace bowel assessment.
What are the contraindications? Can it be used in pregnancy?
Unsuitable in Spleen-vacuity loose stool and yang-vacuity slippery diarrhea. Pregnancy needs a practitioner’s assessment. Stop if diarrhea appears. Abdominal pain, blood in the stool, and constipation with vomiting need medical care. It is not a cannabis flower or leaf product.
Can Huo Ma Ren moisten the intestines and free the stool?
It can help intestinal dryness and constipation from Blood vacuity and fluid depletion. It joins peony, unripe bitter orange, rhubarb, magnolia bark and apricot kernel in Ma Zi Ren Wan. It moistens the intestines and frees the stool—not a specific for every constipation.
Can Huo Ma Ren be drunk daily as a stool, dryness or Blood tea?
Fluid-depleted intestinal dryness may enter a short formula; Spleen-vacuity loose stool only loosens further as it moistens. “Hemp seed must free the stool” does not replace bowel assessment. Moistening the intestines and freeing the stool should name 10–15 g, crushed, raw or dry-fried.
How do you choose among Huo Ma Ren, Bai Zi Ren, Yu Li Ren, Xing Ren and Dang Gui?
Hemp seed is sweet and neutral: moistens the intestines and frees the stool—Blood vacuity and fluid depletion with constipation. Arborvitae seed is sweet and neutral: nourishes the Heart, calms the spirit, moistens the intestines and frees the stool—palpitations and insomnia with constipation. Bush cherry seed is acrid-bitter-sweet and neutral: moistens the intestines, frees the stool, promotes urination and reduces swelling—intestinal dryness with edema. Apricot kernel is bitter and slightly warm: directs qi downward, stops cough, calms panting, moistens the intestines and frees the stool—cough and panting with constipation. Chinese angelica is sweet-acrid and warm: supplements Blood, invigorates Blood, moistens the intestines and frees the stool—Blood-vacuity constipation. Intestinal dryness favors Huo Ma Ren (Ma Zi Ren Wan); insomnia with constipation favors Bai Zi Ren; edema with constipation favors Yu Li Ren; cough with constipation favors Xing Ren; Blood-vacuity constipation favors Dang Gui. They may be paired; Spleen-vacuity loose stool forbids large Huo Ma Ren and Yu Li Ren.
Which herbs is Huo Ma Ren combined with? What are the representative formulas?
Spleen constraint with constipation joins peony, unripe bitter orange, rhubarb, magnolia bark and apricot kernel in Ma Zi Ren Wan. Fluid depletion may join Chinese angelica and raw rehmannia after pattern differentiation. Write Huo Ma Ren 10–15 g, crushed; do not replace moistening the intestines with arborvitae seed by equal weight.
How do you choose and store Huo Ma Ren?
Choose ovoid fruits, gray-green or gray-yellow, reticulate, a thin seed coat, an oily kernel, a faint odor and a bland taste. Moldy, moth-eaten, rancid or empty lots are discarded. Store cool and dry against heat and moths. Buy pharmacopoeial Huo Ma Ren; do not replace moistening the intestines and freeing the stool with arborvitae seed or bush cherry seed by equal weight, and do not treat flower or leaf as the seed.