Rehmannia 8 Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Rehmannia 8 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
Rehmannia 8 is a dietary supplement by Health Concerns with 8 active ingredients. Its ingredients are commonly taken for kidney and adrenal support, anemia and blood building (traditional), inflammatory conditions.Based on those ingredients, 1,399 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Moutan, Cinnamon, Poria sclerotium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Rehmannia 8 by Health Concerns
Ask about any prescription or over-the-counter medication and we check it for interactions with Rehmannia 8 by Health Concerns — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Rehmannia 8 by Health Concerns
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
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 Blend” is a proprietary blend — the label gives one combined amount (1,950 mg) without saying how much of each component you get.
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, Cassia Cinnamon, Rehmannia.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
- For scale: 1,400 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.
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.
HelloPharmacist summaryFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 5 of 8 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2013.
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
General information
Key facts about Rehmannia 8, straight from the product label.
| Brand | Health Concerns |
|---|---|
| Net contents | 90 Tablet(s) |
| Market status | Off market |
| Date entered into DSLD | Sep 25, 2013 |
| DSLD ID | 25714 |
| Product type | Other Combinations |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Rehmannia 8 by Health Concerns, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Proprietary Blend | 1950 mg | -- |
| Rehmannia | 0 Not Present | -- |
| Cinnamon | 0 Not Present | -- |
| Moutan | 0 Not Present | -- |
| Dioscorea | 0 Not Present | -- |
| Poria sclerotium | 0 Not Present | -- |
| Alisma | 0 Not Present | -- |
| Eucommia | 0 Not Present | -- |
| Cornus | 0 Not Present | -- |
Other ingredients: Vegetable Gum, Silicon Dioxide, Stearic Acid, Cellulose, Sweet Potato
Tap any ingredient to jump to its full detail below.
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.
Precautions
Notice: This product is not intended for use by pregnant women.
FDA Statement of Identity
Jin Gui Shen Qi Wan Herbal Supplement
General Statements
Pin Yin: Shu Di Huang, Fu Ling, Mu Dan Pi, Shan Yao, Shan Zhu Yu Ze Xie, Du Zhong, Rou Gui.
Made in the U.S.A.
Suggested/Recommended/Usage/Directions
Suggested Use: Three tablets 2 to 3 times per day between meals.
Brand IP Statement(s)
CHINESE TRADITIONAL FORMULAS(TM)
COMBINING MODERN RESEARCH AND ANCIENT WISDOM(R)
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Rehmannia 8 by Health Concerns label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Rehmannia 8 by Health Concerns
These are the 8 active ingredients this product is made of. Select any to open its full monograph.
Serving size3 Tablet(s) Dosage formTablet Or Pill Servings per container30 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 Blend
- › Rehmannia
- › Cinnamon
- › Moutan
- › Dioscorea
- › Poria sclerotium
- › Alisma
- › Eucommia
- › Cornus
Other (inactive) ingredients: Vegetable Gum, Silicon Dioxide, Stearic Acid, Cellulose, Sweet Potato. These complete the product’s ingredient list but are not active constituents.
Rehmannia 8 by Health Concerns Drug Interactions
Rehmannia 8 contains 8 ingredients, and 4 of them have known drug interactions. Altogether they interact with 1,399 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against Rehmannia 8?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Rehmannia 8 interact with 1,399 drugs. Click any drug to see the details.
4 of the 8 ingredients in Rehmannia 8 interact with drugs. Each result below shows which ingredient is responsible. Moutan Cinnamon Poria sclerotium Rehmannia
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + 6-mercaptopurine interactionAdo-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Ado-trastuzumab Emtansine interactionAbacavir Sulfate, Dolutegravir, LamivudineTriumeq
How Abacavir Sulfate, Dolutegravir, Lamivudine interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abacavir Sulfate, Dolutegravir, Lamivudine interactionAbacavir, LamivudineEpzicom
How Abacavir, Lamivudine interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abacavir, Lamivudine interactionAbciximabReoPro
How Abciximab interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
MoutanAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, combining peony with anticoagulant or antiplatelet drugs might increase the risk of bleeding.
Read the full Moutan + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Abiraterone interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abiraterone Acetate interactionMoutanCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
MoutanAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, combining peony with anticoagulant or antiplatelet drugs might increase the risk of bleeding.
Read the full Moutan + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Acalabrutinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
CinnamonAntidiabetes Drugs, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon + Acarbose interactionRehmanniaAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, rehmannia might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Rehmannia + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acebutolol interactionRehmanniaAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, rehmannia might increase the risk of hypotension when taken with antihypertensive drugs.
Read the full Rehmannia + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
MoutanAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, combining peony with anticoagulant or antiplatelet drugs might increase the risk of bleeding.
Read the full Moutan + Acenocoumarol interactionAcepromazineAtravet
How Acepromazine interacts with Rehmannia 8 — through 1 ingredient. Tap an ingredient for the detail:
Poria SclerotiumCns Depressants, Anticholinergic Drugs Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acepromazine interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen interactionMoutanCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 1a2 (cyp1a2) Substrates, Anticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Aspirin interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
MoutanAnticoagulant/antiplatelet Drugs, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, combining peony with anticoagulant or antiplatelet drugs might increase the risk of bleeding.
Read the full Moutan + Acetaminophen, Aspirin, Caffeine interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionMoutanCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Butalbital interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Caffeine interactionMoutanCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Acetaminophen, Butalbital, Caffeine, Codeine interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Caffeine, Codeine interactionPoria SclerotiumCns Depressants Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Butalbital, Codeine interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Codeine interactionPoria SclerotiumCns Depressants Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
Poria SclerotiumCns Depressants Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Butalbital, Codeine Phosphate interactionMoutanCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Butalbital, Codeine Phosphate interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionPoria SclerotiumCns Depressants, Anticholinergic Drugs Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionMoutanCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Caffeine, Codeine interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Codeine interactionPoria SclerotiumCns Depressants Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
Poria SclerotiumCns Depressants Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Caffeine, Codeine, Salicylamide interactionMoutanCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Caffeine, Codeine, Salicylamide interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Acetaminophen, Caffeine, Dihydrocodeine interactionPoria SclerotiumCns Depressants Moderate
Interaction Summary
Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Read the full Poria Sclerotium + Acetaminophen, Caffeine, Dihydrocodeine interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Rehmannia 8 — through 2 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Caffeine, Isometheptene interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
MoutanCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP3A4.
Read the full Moutan + Acetaminophen, Caffeine, Pyrilamine interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Pyrilamine interactionPoria SclerotiumAnticholinergic Drugs Moderate
Interaction Summary
Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.
Read the full Poria Sclerotium + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Rehmannia 8 — through 3 ingredients. Tap an ingredient for the detail:
Poria SclerotiumAnticholinergic Drugs Moderate
Interaction Summary
Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.
Read the full Poria Sclerotium + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionCinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionMoutanCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, use of peony may increase the levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Moutan + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Rehmannia 8 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.
Moutan
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.
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.
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.
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.
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.
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.
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.
Cinnamon
Antidiabetes Drugs
Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Cassia cinnamon may lower blood glucose levels, and have additive effects in patients treated with antidiabetic agents. Dose adjustments to diabetes medications might be necessary.
Hepatotoxic Drugs
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
There is some concern that ingesting large amounts of cassia cinnamon for an extended duration might cause hepatotoxicity in some people. Cassia cinnamon contains coumarin, which can cause hepatotoxicity in animal models. In humans, very high doses of coumarin from 50-7000 mg/day can result in hepatotoxicity that resolves when coumarin use is discontinued. Lower amounts might also cause liver problems in sensitive people, such as those with liver disease or those taking potentially hepatotoxic agents.
Poria sclerotium
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.
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.
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.
Rehmannia
Antidiabetes Drugs
Theoretically, rehmannia might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research shows that rehmannia may have hypoglycemic effects.
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).
Brand information
Manufacturer and brand details for Rehmannia 8, from the product label.
Health Concerns
See all Health Concerns products- Name
- Health Concerns
- Street Address
- 8001 Capwell Drive
- City
- Oakland
- State
- CA
- ZipCode
- 94621
Rehmannia 8 by Health Concerns: Common Questions
Does Rehmannia 8 by Health Concerns interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
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.
The Full Monographs Behind Rehmannia 8’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Rehmannia
Interacts with 258 drugsRehmannia 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 monographCassia Cinnamon
Interacts with 442 drugsCassia cinnamon is the common, inexpensive cinnamon used in cooking, and it is also taken as a supplement, most often for blood sugar support. The evidence for its health benefits is mixed a...
Read the full Cassia Cinnamon monograph → Herb & supplement monographPeony
Interacts with 811 drugsPeony 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 monographPoria Mushroom
Interacts with 417 drugsPoria 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 → Herb & supplement monographAmerican 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 →Sources & How We Checked
Rehmannia 8'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 42 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.
Rehmannia 3 references
- Zhang R, Zhou J, Jia Z, et al. Hypoglycemic effect of Rehmannia glutinosa oligosaccharide in hyperglycemic and alloxan-induced diabetic rats and its mechanism. J Ethnopharmacol 2004;90:39-43. PubMed
- Zhang RX, Li MX, Jia ZP. Rehmannia glutinosa: review of botany, chemistry and pharmacology. J Ethnopharmacol 2008;117(2):199-214. PubMed
- Chao CH, Hsu JL, Chen MF, et al. Anti-hypertensive effects of Radix Rehmanniae and its active ingredients. Nat Prod Res. 2020;34(11):1547-1552.
Cassia Cinnamon 20 references
- Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
- Khan A, Safdar M, Ali Khan M, et al. Cinnamon improves glucose and lipids of people with type 2 diabetes. Diabetes Care 2003;26:3215-8. PubMed
- De Benito V, Alzaga R. Occupational allergic contact dermatitis from cassia (Chinese cinnamon) as a flavouring agent in coffee. Contact Dermatitis 1999;40:165. PubMed
- Drake TE, Maibach HI. Allergic contact dermatitis and stomatitis caused by a cinnamic aldehyde-flavored toothpaste. Arch Dermatol 1976;112:202-3.
- Press release. Cinnamon capsules to reduce blood sugar are medicinal products! Efficacy has not been scientifically proven - some products contain high levels of coumarin. Federal Institute of Risk Assessment (BfM), Germany, November 11, 2006. Available a
- Felter SP, Vassallo JD, Carlton BD, Daston GP. A safety assessment of coumarin taking into account species-specificity of toxicokinetics. Food Chem Toxicol 2006;44:462-75. PubMed
- Crawford P. Effectiveness of cinnamon for lowering hemoglobin A1C in patients with type 2 diabetes: a randomized, controlled trial. J Am Board Fam Med 2009;22:507-12. PubMed
- Akilen, R., Tsiami, A., Devendra, D., and Robinson, N. Glycated haemoglobin and blood pressure-lowering effect of cinnamon in multi-ethnic Type 2 diabetic patients in the UK: a randomized, placebo-controlled, double-blind clinical trial. Diabet.Med. 2010; PubMed
- Lu T, Sheng H Wu J Cheng Y Zhu J Chen Y. Cinnamon extract improves fasting blood glucose and glycosylated hemoglobin level in Chinese patients with type 2 diabetes. Nutr Res. 2012;32(6):408-412. PubMed
- Choi, J., Lee, K. T., Ka, H., Jung, W. T., Jung, H. J., and Park, H. J. Constituents of the essential oil of the Cinnamomum cassia stem bark and the biological properties. Arch Pharm Res 2001;24(5):418-423.
- Altschuler JA, Casella SJ, MacKenzie TA, Curtis KM. The effect of cinnamon on A1C among adolescents with type 1 diabetes. Diabetes Care 2007;30(4):813-6. PubMed
- Stoecker BR, Zhan Z, Luo R, et al. Cinnamon extract lowers blood glucose in hyperglycemic subjects. FASEB J. 2010;22:722.1 (Abstract only). DOI
- Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
- Isaac-Renton M, Li MK, Parsons LM. Cinnamon spice and everything not nice: many features of intraoral allergy to cinnamic aldehyde. Dermatitis. 2015;26(3):116-21. PubMed
- Vandersall A, Katta R. Eyelid dermatitis as a manifestation of systemic contact dermatitis to cinnamon. Dermatitis. 2015 Jul-Aug;26(4):189. PubMed
- Wickenberg J, Lindstedt S, Nilsson J, Hlebowicz J. Cassia cinnamon does not change the insulin sensitivity or the liver enzymes in subjects with impaired glucose tolerance. Nutr J 2014 Sep 24;13:96. PubMed
- Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
- Shekarchizadeh-Esfahani P, Heydarpour F, Izadi F, Jalili C. The effect of cinnamon supplementation on liver enzymes in adults: A systematic review and meta-analysis of randomized controlled trials. Complement Ther Med 2021;58:102699. PubMed
- Bernaola J, Valverde-Monge M, Otal-Buesa M, Cullen D, Heras-Mendaza F. Cinnamon allergic contact cheilitis. Contact Dermatitis 2023;88(5):418-419. PubMed
- Patel K, Howard M, Tate B. Cheilitis caused by allergic contact dermatitis to cinnamon in chai tea: A case report. Contact Dermatitis 2023;88(3):239-240. PubMed
Peony 15 references
- Chen LC, Chou MH, Lin MF, Yang LL. Effects of Paeoniae Radix, a traditional Chinese medicine, on the pharmacokinetics of phenytoin. J Clin Pharm Ther 2001;26:271-8. PubMed
- Guo TL, Zhou XW. [Clinical observations on the treatment of the gestational hypertension syndrome with Angelica and Paeonia powder]. Zhong Xi Yi Jie He Za Zhi 1986;6:714-6, 707.
- Xie HJ, Yasar U, Sandberg M, Rane A. Paeoniae Radix, a traditional Chinese medicine, and CYP2C9 activity. J Clin Pharm Ther 2002;27:229-30. . PubMed
- Harada M, Suzuki M, Ozaki Y. Effect of Japanese Angelica root and peony root on uterine contraction in the rabbit in situ. J Pharmacobiodyn 1984;7:304-11. PubMed
- Anon. Monograph. Peony (Paeonia spp). Alt Med Rev 2001;6:495-9.
- Bruynzeel DP. Contact Dermatitis Due to Paeonia (Peony). Contact Dermatitis 1989; 20:152-3..
- Bian, X., Xu, Y., Zhu, L., Gao, P., Liu, X., Liu, S., Qian, M., Gai, M., Yang, J., and Wu, Y. Prevention of maternal-fetal blood group incompatibility with traditional Chinese herbal medicine. Chin Med J (Engl.) 1998;111(7):585-587.
- Wong, A. L. and Chan, T. Y. Interaction between warfarin and the herbal product quilinggao. Ann Pharmacother 2003;37(6):836-838.
- Cai Y, Yuan Q, Xu K, et al. Assessment of the therapeutic effect of total glycosides of peony for juvenile idiopathic arthritis: a systematic review and meta-analysis. Evid Based Complement Alternat Med 2016;2016:8292486.
- Koo YK, Kim JM, Koo JY, et al. Platelet anti-aggregatory and blood anti-coagulant effects of compounds isolated from Paeonia lactiflora and Paeonia suffruticosa. Pharmazie 2010;65(8):624-8.
- Wang W, Tian DD, Zheng B, et al. Peony-glycyrrhiza decoction, an herbal preparation, inhibits clozapine metabolism via cytochrome P450s, but not flavin-containing monooxygenase in in vitro models. Drug Metab Dispos 2015;43(7):1147-53. PubMed
- Zhou Y, Jin L, Kong F, et al. Clinical and immunological consequences of total glucosides of paeony treatment in Sjögren's syndrome: A randomized controlled pilot trial. Int Immunopharmacol. 2016 Oct;39:314-319. doi: 10.1016/j.intimp.2016.08.006. PubMed
- Zhu Q, Qi X, Wu Y, Wang K. Clinical study of total glucosides of paeony for the treatment of diabetic kidney disease in patients with diabetes mellitus. Int Urol Nephrol. 2016 Nov;48(11):1873-1880. doi: 10.1007/s11255-016-1345-5. PubMed
- Xu Y, Li X, Chen T, et al. Radix Paeoniae Alba increases serum estrogen level and up-regulates estrogen receptor expression in uterus and vagina of immature/ovariectomized mice. Phytother Res. 2019;33(1):117-29. [RETRACTED].
- Liu X, Li X, Li X, et al. The efficacy and safety of total glucosides of peony in the treatment of primary Sjögren's syndrome: a multi-center, randomized, double-blinded, placebo-controlled clinical trial. Clin Rheumatol. 2019;38(3):657-64. Erratum i
Poria Mushroom 3 references
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Kim H, Park I, Park K, Park S, Kim YI, Park BG. The positive effects of Poria cocos extract on quality of sleep in insomnia rat models. Int J Environ Res Public Health 2022;19(11):6629. PubMed
- Lv Q, Di X, Bian B, Li K, Guo J. Neuroprotective effects of Poria cocos (Agaricomycetes) essential oil on Aß1-40-induced learning and memory deficit in rats. Int J Med Mushrooms 2022;24(10):73-82.
American Dogwood 1 reference
- Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
Parts of this content are provided by the Therapeutic Research Center, LLC.
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