Interactions on record — worth a quick check against your medications. Based on 5 of 8 ingredients. Check your meds →
Dietary supplement

Mai Wei Di Huang Wan Ingredients & Drug Interactions

by Min Shan

Mai Wei Di Huang Wan label
See full label image
Tablet Or Pill Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Mai Wei Di Huang Wan against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Mai Wei Di Huang Wan is a dietary supplement by Min Shan with 8 active ingredients. Its ingredients are commonly taken for fatigue and low energy, stress and adaptogen support, liver health.Based on those ingredients, 1,338 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Paeonia suffruticosa extract, Schisandra chinensis extract, Poria cocos sclerotium extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Mai Wei Di Huang Wan by Min Shan

Ask about any prescription or over-the-counter medication and we check it for interactions with Mai Wei Di Huang Wan by Min Shan — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Mai Wei Di Huang Wan by Min Shan

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Aug 20, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 8 active ingredients.
  • “Proprietary Extract Blend” is a proprietary blend — the label gives one combined amount (1,320 mg) without saying how much of each component you get.

Mai Wei Di Huang Wan contains eight ingredients total, blended together in tablet or pill form. The formula includes schisandra chinensis extract, rehmannia glutinosa extract, peony (paeonia suffruticosa) extract, poria mushroom (poria cocos sclerotium) extract, American dogwood (cornus officinalis) extract, and three others—ophiopogon japonicus, alisma orientalis, and dioscorea opposita—all as extracts.

The inactive ingredients are microcrystalline cellulose, hydrated magnesium silicate, dextrin, and China wax, which are fillers and binders that give the tablet its form.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Moderate

Some clinical evidence supports its ingredients for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Chronic kidney disease (CKD) — rated "Possibly Effective" (Rehmannia) (Natural Medicines).

The evidence supporting this product's uses is not well established in the data we hold. Rehmannia carries a 'possibly effective' rating for chronic kidney disease, but the other ingredients show insufficient reliable evidence for their traditional uses—including schisandra for asthma, cough, diabetes, and diarrhea; peony for aging skin, migraine, cirrhosis, and other conditions; and poria mushroom for cancer, diabetes, and dementia.

Because this is a multi-ingredient formula and the individual ingredients lack strong evidence for most claimed purposes, it's worth discussing with your doctor or pharmacist whether this product is likely to help your particular health concern.

The evidence, ingredient by ingredient Schisandra American Dogwood Rehmannia Peony Poria Mushroom

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 3 of the 5 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 5 of 5.
  • General safety write-ups exist for 5 of 5.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Schisandra is generally well tolerated in the short term, though high-quality safety data are limited; the most common side effects reported are decreased appetite, heartburn, stomach upset, and hives. Rehmannia, peony, poria mushroom, and American dogwood have limited human safety data overall—quality varies between products, and adverse effects are sparse in the data we hold, though peony may occasionally cause gastrointestinal upset like diarrhea, nausea, or abdominal discomfort.

Pregnancy and breastfeeding: Schisandra and peony are rated possibly unsafe in pregnancy (traditional sources suggest they may stimulate the uterus), and there isn't enough reliable safety information for either during breastfeeding. Cornus, rehmannia, and poria mushroom also lack sufficient safety data in pregnancy and lactation; the facts advise avoiding them in both situations.

The safety data for ophiopogon, alisma, and dioscorea aren't on file.

Side effects, ingredient by ingredient Schisandra American Dogwood Rehmannia Peony Poria Mushroom

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 4 of the 5 matched ingredients can interact with medications — Peony, Poria Mushroom, Schisandra, Rehmannia.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,339 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you take this product, double-check these medication types with your doctor or pharmacist: immunosuppressants like tacrolimus (schisandra can raise levels significantly), blood thinners and antiplatelet drugs like warfarin (schisandra may lower effectiveness; peony may increase bleeding risk), sedatives and CNS depressants like midazolam (schisandra and poria may increase effects), antifungals like voriconazole (schisandra may raise levels), antipsychotics like clozapine (peony may raise levels), diabetes and blood pressure medications (rehmannia may increase hypoglycemia and hypotension risk), and any drug metabolized by liver enzymes CYP3A4, CYP2C19, CYP2C9, or CYP1A2 (multiple ingredients may alter levels).

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

This traditional Chinese formula is generally well tolerated by healthy adults in the short term, but safety data are limited overall and it carries moderate interactions with many common medications, most notably immunosuppressants, blood thinners, and drugs processed by the liver. If you take any prescription medications—especially tacrolimus, warfarin, midazolam, diabetes drugs, or blood pressure drugs—check with your pharmacist or doctor before starting.

Pregnant or breastfeeding people should also talk with their healthcare provider, as safety data are insufficient.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 5 of 8 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 27, 2021.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Mai Wei Di Huang Wan, straight from the product label.

Brand Min Shan
Net contents 1.2 Ounce(s); 33 Gram(s); 200 Pill(s)
Market status On market
Date entered into DSLD Jul 27, 2021
DSLD ID 252126
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Mai Wei Di Huang Wan by Min Shan, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
8 Pill(s)
Maximum serving Sizes:
8 Pill(s)
Servings per container
25
IngredientAmount% DV
Proprietary Extract Blend1320 mg--
Schisandra chinensis extract0 NP--
Cornus officinalis extract0 NP--
Rehmannia glutinosa extract0 NP--
Ophiopogon japonicus extract0 NP--
Paeonia suffruticosa extract0 NP--
Poria cocos sclerotium extract0 NP--
Alisma orientalis extract0 NP--
Dioscorea opposita extract0 NP--

Other ingredients: Microcrystalline Cellulose, hydrated Magnesium Silicate, Dextrin, China Wax

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation

GMP Min Shan Chinese herbal teapills have been produced at the Lanzhou Foci Pharmaceutical Co. Ltd. since 1929. Lanzhou Foci pioneered the manufacturing of extracted teapills, and are the genuine and original "Lanzhou Pills". Our domestic and internationally certified GMP factory and products have won numerous awards for quality and excellence. Each batch of Min Shan teapills has been tested for microbials, heavy metals, and other important quality parameters before leaving our facility to ensure quality and safety.

Foci Pharmaceutical Lanzhou Foci Pharmaceutical Co. Ltd. Lanzhou, Gansu Province, China

Internationally GMP certified manufacturer

No artificial colors, flavors, refined sugar or pharmaceuticals

General Statements

For more information, visit www.fczy.com.

US owned & operated since 1969

Product of China

FDA Statement of Identity

Herbal Dietary Supplement

Suggested/Recommended/Usage/Directions

Take 8 pills 3 times daily or as directed by your health care practitioner

Precautions

Keep out of reach of children

Formula

100% Natural Chinese herbs

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Mai Wei Di Huang Wan by Min Shan label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Mai Wei Di Huang Wan label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Mai Wei Di Huang Wan by Min Shan

These are the 8 active ingredients this product is made of. Select any to open its full monograph.

Serving size8 Pill(s) Dosage formTablet Or Pill Servings per container25 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Extract Blend

1320 mg per serving

Other (inactive) ingredients: Microcrystalline Cellulose, Hydrated Magnesium Silicate, Dextrin, China Wax. These complete the product’s ingredient list but are not active constituents.

Interaction report

Mai Wei Di Huang Wan by Min Shan Drug Interactions

Want to check YOUR meds against Mai Wei Di Huang Wan?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
1,338Drugs
1,338 Moderate

Ingredients driving the most interactions

Paeonia suffruticosa extract 811
Schisandra chinensis extract 803
Poria cocos sclerotium extract 417
Rehmannia glutinosa extract 258

Individual Drug Interactions

The ingredients in Mai Wei Di Huang Wan interact with 1,338 drugs. Click any drug to see the details.

4 of the 8 ingredients in Mai Wei Di Huang Wan interact with drugs. Each result below shows which ingredient is responsible. Paeonia suffruticosa extract Schisandra chinensis extract Poria cocos sclerotium extract Rehmannia glutinosa extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Mai Wei Di Huang Wan with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Paeonia suffruticosa extract7 drug types · 811 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, combining peony with anticoagulant or antiplatelet drugs might increase the risk of bleeding.
In vitro research suggests that peony might have antiplatelet, anticoagulant, and antithrombotic effects.

Likelihood Possible Evidence D
Clozapine (Clozaril)

Theoretically, peony might increase the levels and clinical effects of clozapine.
In vitro research shows that peony suppresses the metabolism of clozapine via weak-to-moderate inhibitory effects on cytochromes P450 (CYP) 1A2 and CYP3A4. This effect has not been reported in humans.

Likelihood Possible Evidence D
Contraceptive Drugs

Theoretically, peony might interfere with contraceptive drugs due to competition for estrogen receptors.
In vitro and animal research shows that peony extract has estrogenic activity. Concomitant use might also increase the risk for estrogen-related adverse effects.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
In vitro research shows that peony suppresses the metabolism of clozapine via weak-to-moderate inhibitory effects on CYP1A2 and CYP3A4. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
In vitro research shows that peony suppresses the metabolism of clozapine via weak-to-moderate inhibitory effects on CYP1A2 and CYP3A4. This effect has not been reported in humans.

Likelihood Possible Evidence D
Estrogens

Theoretically, concomitant use of large amounts of peony might interfere with hormone replacement therapy and/or increase the risk for estrogen-related adverse effects.
In vitro and animal research shows that peony extract has estrogenic activity. Theoretically, peony might compete for estrogen receptors and/or cause additive estrogenic effects.

Likelihood Possible Evidence D
Phenytoin (Dilantin)

Theoretically, peony might reduce the levels and clinical effects of phenytoin.
Animal research shows that taking peony root reduces levels of phenytoin. Some researchers suggest that peony root might affect cytochrome P450 (CYP) 2C9, which metabolizes phenytoin. However, preliminary research in humans shows that peony root does not alter levels of losartan (Cozaar), which is also metabolized by CYP2C9.

Likelihood Probable Evidence D
Paeonia suffruticosa extract full monograph & interactions

Schisandra chinensis extract12 drug types · 803 drugs

Cyclophosphamide

Theoretically, schisandra might increase the levels and clinical effects of cyclophosphamide.
In vitro research shows that schisandra increases the concentration of cyclophosphamide, likely through inhibition of cytochrome P450 3A4. After multiple doses of the schisandra constituents schisandrin A and schisantherin A, the maximum concentration of cyclophosphamide was increased by 7% and 75%, respectively, while the overall exposure to cyclophosphamide was increased by 29% and 301%, respectively.

Likelihood Probable Evidence D
Cyclosporine (Neoral, Sandimmune)

Schisandra can increase the levels and clinical effects of cyclosporine.
A small observational study in children with aplastic anemia found that taking schisandra with cyclosporine increased cyclosporine trough levels by 93% without increasing the risk of adverse events. However, the dose of cyclosporine was reduced in 9% of children to maintain appropriate cyclosporine blood concentrations.

Likelihood Probable Evidence B
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, schisandra might increase the levels and clinical effects of CYP2C19 substrates.
In vitro research shows that schisandra inhibits CYP2C19, and animal research shows that schisandra increases the concentration of voriconazole, a CYP2C19 substrate. Theoretically, schisandra may also inhibit the metabolism of other CYP2C19 substrates. This effect has not been reported in humans.

Likelihood Probable Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, schisandra might decrease the levels and clinical effects of CYP2C9 substrates.
In vitro and animal research suggests that schisandra induces CYP2C9 enzymes. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Schisandra can increase the levels and clinical effects of drugs metabolized by CYP3A4.
Most clinical and laboratory research shows that schisandra, administered either as a single dose or up to twice daily for 14 days, inhibits CYP3A4 and increases the concentration of CYP3A4 substrates such as cyclophosphamide, midazolam, tacrolimus, and talinolol. Although one in vitro and animal study shows that schisandra may induce CYP3A4 metabolism, this effect appears to be overpowered by schisandra's CYP3A4 inhibitory activity and has not been reported in humans.

Likelihood Probable Evidence D
Midazolam (Versed)

Schisandra can increase the levels and clinical effects of midazolam.
A small pharmacokinetic study in healthy adults shows that taking schisandra extract (Hezheng Pharmaceutical Co.) containing deoxyschizandrin 33.75 mg twice daily for 8 days and a single dose of midazolam 15 mg on day 8 increases the overall exposure to midazolam by about 119%, increases the peak plasma level of midazolam by 86%, and decreases midazolam clearance by about 52%. This effect has been attributed to inhibition of CYP3A4 by schisandra.

Likelihood Probable Evidence B
P-Glycoprotein Substrates

Schisandra might increase the levels and clinical effects of P-glycoprotein substrates.
In vitro research shows that schisandra extracts and constituents such as schisandrin B inhibit P-glycoprotein mediated efflux in intestinal cells and in P-glycoprotein over-expressing cell lines. Additionally, a small clinical study shows that schisandra increases the peak concentration and overall exposure to talinolol, a P-glycoprotein probe substrate. Theoretically, schisandra might inhibit the efflux of other P-glycoprotein substrates.

Likelihood Possible Evidence D
Sirolimus (Rapamune)

Schisandra can increase the levels and clinical effects of sirolimus.
A small pharmacokinetic study in healthy volunteers shows that taking 3 capsules of schisandra (Hezheng Pharmaceutical Company) containing a total of 33.75 mg deoxyschizandrin twice daily for 13 days and then taking a single dose of sirolimus 2 mg increases the overall exposure and peak level of sirolimus by two-fold. This effect is thought to be due to inhibition of cytochrome P450 3A4 by schisandra, as well as possible inhibition of the P-glycoprotein drug transporter.

Likelihood Probable Evidence B
Tacrolimus (Prograf)

Schisandra can increase the levels and clinical effects of tacrolimus.
Clinical research in healthy children and adults, transplant patients, and patients with nephrotic syndrome and various rheumatic immunologic disorders shows that taking schisandra with tacrolimus increases tacrolimus peak levels by 183% to 268%, prolongs or delays time to peak tacrolimus concentrations, increases overall exposure to tacrolimus by 126% to 343%, and decreases tacrolimus clearance by 19% to 73%. This effect is thought to be due to inhibition of P-glycoprotein drug transporter and CYP3A4 and CYP3A5 by schisandra. Some clinical and observational studies suggest that schisandra increases tacrolimus levels similarly in both expressors and non-expressors of CYP3A5, while other studies suggest it does so to a greater degree in CYP3A5 expressors than non-expressors. Animal research suggests that the greatest increase in tacrolimus levels occurs when schisandra is taken either concomitantly or up to 2 hours before tacrolimus, and clinical and observational research in humans suggests that schisandra may increase whole blood levels of tacrolimus and decrease clearance of tacrolimus in a dose-dependent manner.

Likelihood Probable Evidence B
Talinolol

Schisandra can increase the levels and clinical effects of talinolol.
A small pharmacokinetic study in healthy volunteers shows that taking schisandra extract 300 mg twice daily for 14 days with a single dose of talinolol 100 mg on day 14 increases the peak talinolol level by 51% and the overall exposure to talinolol by 47%. This effect is thought to be due to the possible inhibition of cytochrome P450 3A4 and P-glycoprotein by schisandra. tly.

Likelihood Probable Evidence B
Voriconazole (Vfend)

Theoretically, schisandra might increase the levels and clinical effects of voriconazole.
Animal research shows that oral schisandra given daily for 1 or 14 days increases levels of intravenously administered voriconazole, a cytochrome P450 (CYP) 2C19 substrate. This effect is thought to be due to inhibition of CYP2C19 by schisandra. However, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, schisandra might decrease the levels and clinical effects of warfarin.
Animal research suggests that oral schisandra extract, given daily for 6 days, reduces levels of intravenously administered warfarin. This effect might be due to the induction of cytochrome P450 (CYP) 2C9 metabolism by schisandra. However, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Schisandra chinensis extract full monograph & interactions

Poria cocos sclerotium extract3 drug types · 417 drugs

Anticholinergic Drugs

Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.
In animal research, poria mushroom essential oil reduces acetylcholinesterase activity. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, poria mushroom might have additive effects when used with cholinergic drugs.
In animal research, poria mushroom essential oil reduces acetylcholinesterase activity. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Animal research shows that poria mushroom extract has sedative properties. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Poria cocos sclerotium extract full monograph & interactions

Rehmannia glutinosa extract2 drug types · 258 drugs

Antidiabetes Drugs

Theoretically, rehmannia might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research shows that rehmannia may have hypoglycemic effects.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, rehmannia might increase the risk of hypotension when taken with antihypertensive drugs.
Animal research shows that rehmannia may have hypotensive effects. Laboratory research shows that formulations of dried and processed rehmannia root inhibit angiotensin-converting enzyme (ACE).

Likelihood Possible Evidence D
Rehmannia glutinosa extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Mai Wei Di Huang Wan, from the product label.

Min Shan

See all Min Shan products
Name
Mayway Herbs
City
Oakland
State
CA
Phone Number
(800) 262-9929
Web Address
mayway.com
Pharmacist Counseling Corner

Mai Wei Di Huang Wan by Min Shan: Common Questions

Does Mai Wei Di Huang Wan by Min Shan interact with any medications?
Yes. Based on its ingredients, Mai Wei Di Huang Wan has a known interaction with 1,338 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Mai Wei Di Huang Wan contains 8 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this while I'm pregnant or breastfeeding?
The safety data advise against it. Schisandra and peony are rated possibly unsafe in pregnancy because traditional sources suggest they may stimulate the uterus. For breastfeeding, there isn't enough reliable safety information for schisandra, peony, rehmannia, cornus, or poria mushroom. Talk with your doctor or pharmacist about whether this product is right for you.
What is schisandra, and what's it supposed to do?
Schisandra chinensis is a plant extract included in this formula. In the data we hold, it shows insufficient evidence for uses like asthma, athletic performance, cough, diabetes, and diarrhea—meaning the evidence isn't strong enough to rate whether it works for these purposes.
What side effects might I experience?
The most common reported side effects of schisandra are decreased appetite, heartburn, stomach upset, and hives. Peony may cause gastrointestinal upset including abdominal discomfort, diarrhea, or nausea in some people. Overall, the product is generally well tolerated in the short term, though safety data are limited.
Does this product actually work for what it claims?
The evidence isn't clear. Rehmannia is rated possibly effective for chronic kidney disease, but the other ingredients show insufficient reliable evidence for their traditional uses. If you're considering this product for a specific health concern, it's worth discussing with your doctor or pharmacist whether there's evidence to support it.
What's in the inactive ingredients—is there anything I should know?
The inactive ingredients are microcrystalline cellulose, hydrated magnesium silicate, dextrin, and China wax. These are standard fillers and binders used to form the tablet. If you have sensitivities to any of these, mention them to your pharmacist.
I'm on warfarin. Is this safe?
No—check with your doctor or pharmacist first. Schisandra in this product may theoretically decrease warfarin's effectiveness, and peony may increase bleeding risk. Both are concerns you need to discuss with your healthcare provider before starting.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Mai Wei Di Huang Wan label
Go deeper

The Full Monographs Behind Mai Wei Di Huang Wan’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Schisandra

Interacts with 803 drugs

Schisandra is a traditional Chinese medicine berry used as an adaptogen for stress, fatigue, and liver support. Human evidence is limited and most claims are not well proven, but it appears...

Read the full Schisandra monograph → Herb & supplement monograph

American Dogwood

American Dogwood is a North American flowering tree whose bark was used in traditional folk medicine, especially as a substitute for quinine to treat fevers. There is very little modern huma...

Read the full American Dogwood monograph → Herb & supplement monograph

Rehmannia

Interacts with 258 drugs

Rehmannia is a root used for centuries in Traditional Chinese Medicine, often to 'tonify' the kidneys and support energy or blood health. Human evidence for most modern uses is limited, so i...

Read the full Rehmannia monograph → Herb & supplement monograph

Peony

Interacts with 811 drugs

Peony root is a traditional Chinese medicine herb often used for menstrual problems, cramps, and inflammation, frequently as part of combination formulas. Human evidence for most uses is lim...

Read the full Peony monograph → Herb & supplement monograph

Poria Mushroom

Interacts with 417 drugs

Poria mushroom (Fu Ling) is a fungus long used in Traditional Chinese Medicine, mainly as a mild diuretic and digestive and calming aid. Modern scientific evidence in humans is very limited,...

Read the full Poria Mushroom monograph →
Sources

Sources & How We Checked

Mai Wei Di Huang Wan's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 48 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Schisandra 26 references
  1. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  2. Iwata H, Tezuka Y, Kadota S, et al. Identification and characterization of potent CYP3A4 inhibitors in Schisandra fruit extract. Drug Metab Dispos 2004;32:1351-8. PubMed
  3. Mu Y, Zhang J, Zhang S, et al. Traditional Chinese medicines Wu Wei Zi (Schisandra chinensis Baill) and Gan Cao (Glycyrrhiza uralensis Fisch) activate pregnane X receptor and increase warfarin clearance in rats. J Pharmacol Exp Ther 2006;316:1369-77. PubMed
  4. Xin HW, Wu XC, Li Q, et al. Effects of Schisandra sphenanthera extract on the pharmacokinetics of tacrolimus in healthy volunteers. Br J Clin Pharmacol 2007;64:469-75.
  5. Qin XL, Bi HC, Wang XD, et al. Mechanistic understanding of the different effects of Wuhzi Tablet (Schisandra sphenanthera extract) on the absorption and first-pass intestinal and hepatic metabolism of tacrolimus (FK506). Int J Pharm 2010;389:114-21.
  6. Makino, T., Mizuno, F., and Mizukami, H. Does a kampo medicine containing schisandra fruit affect pharmacokinetics of nifedipine like grapefruit juice? Biol.Pharm.Bull. 2006;29(10):2065-2069. PubMed
  7. Fan L, Mao XQ, Tao GY, Wang G, Jiang F, Chen Y, Li Q, Zhang W, Lei HP, Hu DL, Huang YF, Wang D, Zhou HH. Effect of Schisandra chinensis extract and Ginkgo biloba extract on the pharmacokinetics of talinolol in healthy volunteers. Xenobiotica. 2009 Mar;39(
  8. Jiang W, Wang X, Xu X, Kong L. Effect of Schisandra sphenanthera extract on the concentration of tacrolimus in the blood of liver transplant patients. Int J Clin Pharmacol Ther. 2010 Mar;48(3):224-9. PubMed
  9. Xin HW, Wu XC, Li Q, Yu AR, Xiong L. Effects of Schisandra sphenanthera extract on the pharmacokinetics of midazolam in healthy volunteers. Br J Clin Pharmacol. 2009 May;67(5):541-6.
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American Dogwood 1 reference
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Poria Mushroom 3 references
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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