DIM +BioPerine Ingredients & Drug Interactions
What is this page for?
First and foremost: checking DIM +BioPerine 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
DIM +BioPerine is a dietary supplement by Purely Optimal with 2 active ingredients. Its ingredients are commonly taken for flavoring and culinary use, digestive complaints like bloating and indigestion, boosting absorption of other supplements.Based on those ingredients, 1,019 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are BioPerine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against DIM +BioPerine by Purely Optimal
Ask about any prescription or over-the-counter medication and we check it for interactions with DIM +BioPerine by Purely Optimal — 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 DIM +BioPerine by Purely Optimal
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.
What’s inside
Full disclosure
This product contains two active ingredients. BioPerine is a black pepper extract standardized for piperine, the compound responsible for black pepper's bite and believed to enhance nutrient absorption.
DIM (diindolylmethane) is a compound derived from cruciferous vegetables like broccoli and cabbage. The product also includes three inactive ingredients — vegetable cellulose (capsule material), rice flour, and silicon dioxide (a flow agent) — to hold the capsule together and aid manufacturing.
Does it work?
Couldn't assess
The evidence we hold doesn't establish that BioPerine works for hay fever, asthma, athletic performance, headache, depression, or diarrhea — we have insufficient reliable evidence to rate it for any of those uses. We also have no effectiveness data on file for DIM.
If you're considering this product for a specific health goal, talk it over with your doctor or pharmacist about whether the evidence supports that use.
How safe is it?
Well-documented data
BioPerine (black pepper) is generally well tolerated in food amounts and as a single medicinal dose. The most common side effects are a burning aftertaste, indigestion, and reduced taste perception.
Cough has been reported when the oil is inhaled. Rarely, sensitive individuals may have an allergic reaction — including hives, facial swelling, red eyes, and severe cough — so stop and seek help if any of those occur.
The safety notes emphasize that while food-level black pepper is fine, concentrated piperine supplements should be used cautiously and ideally only with medical guidance. We hold no safety data on DIM.
Meds to double-check
Moderate interaction found
Before taking DIM + BioPerine, double-check with your doctor or pharmacist if you're on propranolol, nevirapine, rifampin, phenytoin, cyclosporine, pentobarbital, atorvastatin, or theophylline — BioPerine may raise blood levels of these drugs. No other interactions are documented for the ingredients we could check.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
If you take propranolol, nevirapine, rifampin, phenytoin, cyclosporine, pentobarbital, atorvastatin, theophylline, or other medications, check your list against the interaction tool before starting this product — BioPerine can raise drug levels significantly. BioPerine is well tolerated in food amounts, but concentrated supplements warrant caution.
Talk with your doctor or pharmacist before taking this, especially if you're on any prescription medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 25, 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
General information
Key facts about DIM +BioPerine, straight from the product label.
| Brand | Purely Optimal |
|---|---|
| Barcode (UPC) | X00217D5SP |
| Net contents | 30 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Feb 25, 2021 |
| DSLD ID | 243949 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| 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 DIM +BioPerine by Purely Optimal, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| BioPerine | 5 mg | -- |
| DIM | 250 mg | -- |
Other ingredients: Vegetable Cellulose, Rice Flour, Silicon Dioxide
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.
Suggested/Recommended/Usage/Directions
Suggested Use: Take one capsule per day. Take DIM with food and a full glass of water.
Precautions
Caution: Do not exceed recommended dose.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of reach of children.
Do not use if safety seal is damaged or missing.
Storage
Store in a cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Formulation
Extra strength
Supports estrogen metabolism Prevents oxidative cell damage Promotes healthy immune system Supports lean muscle mass
Made with Non GMO ingredients
Formula
Diindolylmethane
FDA Statement of Identity
Dietary Supplement
Seals/Symbols
FDA Registered & Inspected Facility cGMP Facility Good Manufacturing Practice Certification Made in the USA Lab Tested 3rd Party Certified for Purity & Potency
Brand IP Statement(s)
BioPerine is a registered trademark of Sabinsa Corporation
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
DIM +BioPerine by Purely Optimal 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 DIM +BioPerine by Purely Optimal
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule 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.
BioPerine
Interacts with1,019 drugs
Black pepper is a common kitchen spice that is generally safe in the amounts used in food. Its extract, piperine, is mostly added to supplements to he...
BioPerine monograph & interactionsDIM
Other (inactive) ingredients: Vegetable Cellulose, Rice Flour, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
DIM +BioPerine by Purely Optimal Drug Interactions
HelloPharmacist Interaction Report
DIM + BioPerine by Purely Optimal contains BioPerine (black pepper extract), which interacts with multiple medications through its piperine content.
The most serious documented interactions are Moderate in severity and affect eight drug types: propranolol (a beta-blocker heart medication), nevirapine (an HIV medication), rifampin (a tuberculosis drug), phenytoin (a seizure medication), cyclosporine (an immune suppressant), pentobarbital (a sedative), atorvastatin (a cholesterol drug), and theophylline (a breathing medication). BioPerine may increase blood levels of these drugs, which could amplify their effects or side effects.
Read the full breakdown — every affected drug type, severity by severity
For propranolol, nevirapine, rifampin, phenytoin, and theophylline, human research shows piperine slows how your body clears these medications, raising their concentrations. For cyclosporine, atorvastatin, and pentobarbital, the evidence comes from lab or animal studies, so human risk is theoretical but not yet confirmed.
Altogether, these interactions span 1,020 individual medications.
We could not check DIM — we hold no data for that ingredient — so we can't say whether it adds interactions of its own. Before you start this supplement, run your exact medications through the checker on this page, especially if you take heart, seizure, HIV, TB, immunosuppressant, or breathing medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against DIM +BioPerine?
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 DIM +BioPerine interact with 1,019 drugs. Click any drug to see the details.
1 of the 2 ingredients in DIM +BioPerine interact with drugs. Each result below shows which ingredient is responsible. BioPerine
AcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Butalbital interactionAcetaminophen, ChlorzoxazoneAcetazone Forte, Extra Strength Tylenol Aches & Strains, Parafon Forte
How Acetaminophen, Chlorzoxazone interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Chlorzoxazone interactionAcetaminophen, Dexbrompheniramine, PseudoephedrineSinadrin Plus
How Acetaminophen, Dexbrompheniramine, Pseudoephedrine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Dexbrompheniramine, Pseudoephedrine interactionAcetaminophen, Dichloralantipyrine, IsomethepteneAmidrine, Midchlor, Migquin, Migratine
How Acetaminophen, Dichloralantipyrine, Isometheptene interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Dichloralantipyrine, Isometheptene interactionAcetaminophen, Dichloralphenazone, IsomethepteneMidrin
How Acetaminophen, Dichloralphenazone, Isometheptene interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Dichloralphenazone, Isometheptene interactionAcetaminophen, Dichlorophenazone, IsometheptaneIsocom
How Acetaminophen, Dichlorophenazone, Isometheptane interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Dichlorophenazone, Isometheptane interactionAcetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength
How Acetaminophen, Diphenhydramine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Diphenhydramine interactionAcetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief
How Acetaminophen, Diphenhydramine, Pseudoephedrine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionAcetaminophen, Doxylamine, PseudoephedrineEx Strength Tylenol Sinus Nighttime
How Acetaminophen, Doxylamine, Pseudoephedrine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Doxylamine, Pseudoephedrine interactionAcetaminophen, MethocarbamolRobaxacet
How Acetaminophen, Methocarbamol interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Methocarbamol interactionAcetaminophen, OrphenadrineOrfenagesic
How Acetaminophen, Orphenadrine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Orphenadrine interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Pamabrom, Pyrilamine interactionAcetaminophen, PentazocineTalacen
How Acetaminophen, Pentazocine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Pentazocine interactionAcetaminophen, PhenylpropanolamineTetra Caps
How Acetaminophen, Phenylpropanolamine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Phenylpropanolamine interactionAcetaminophen, Phenylpropanolamine, PhenyltoloxamineSinubid
How Acetaminophen, Phenylpropanolamine, Phenyltoloxamine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, PhenyltoloxaminePercogesic, Relagesic
How Acetaminophen, Phenyltoloxamine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Phenyltoloxamine interactionAcetaminophen, Phenyltoloxamine, SalicylamideLobac
How Acetaminophen, Phenyltoloxamine, Salicylamide interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Phenyltoloxamine, Salicylamide interactionAcetaminophen, PseudoephedrineChildren's Tylenol Sinus, Dristan N.D., Non-Aspirin Sinus, Ornex, Ornex-Max, Sinutab +5 more
How Acetaminophen, Pseudoephedrine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Pseudoephedrine interactionAcetaminophen, Pseudoephedrine, TriprolidineActifed Plus ES
How Acetaminophen, Pseudoephedrine, Triprolidine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Acetaminophen, Pseudoephedrine, Triprolidine interactionAgomelatineValdoxan
How Agomelatine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Agomelatine interactionAmoxicillinAmix, Amoram, Amoxident, Amoxil Capsules, Amoxil Injection, Galenamox +3 more
How Amoxicillin interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineAmoxicillin (amoxil, Trimox) Minor
Interaction Summary
Theoretically, black pepper might increase the effects and side effects of amoxicillin.
Read the full Bioperine + Amoxicillin interactionAmoxicillin, Clavulanate PotassiumAugmentin, Augmentin '125/31 SF', Augmentin '250/62 SF', Augmentin XR, Augmentin-Duo 400/57, Clavulin
How Amoxicillin, Clavulanate Potassium interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineAmoxicillin (amoxil, Trimox) Minor
Interaction Summary
Theoretically, black pepper might increase the effects and side effects of amoxicillin.
Read the full Bioperine + Amoxicillin, Clavulanate Potassium interactionAsenapineSaphris, Secuado
How Asenapine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Asenapine interactionBendamustineBelrapzo, Treanda, Vivimusta
How Bendamustine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Bendamustine interactionBendamustine HydrochlorideBendeka
How Bendamustine Hydrochloride interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Bendamustine Hydrochloride interactionChlordiazepoxideLibrium
How Chlordiazepoxide interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Chlordiazepoxide interactionChlordiazepoxide, Clidinium BromideLibrax
How Chlordiazepoxide, Clidinium Bromide interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Chlordiazepoxide, Clidinium Bromide interactionFenfluamineFintepla
How Fenfluamine interacts with DIM +BioPerine — through 1 ingredient. Tap an ingredient for the detail:
BioperineCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Bioperine + Fenfluamine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in DIM +BioPerine with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
BioPerine
Anticoagulant/Antiplatelet Drugs
Theoretically, black pepper might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
In vitro research shows that piperine, a constituent of black pepper, seems to inhibit platelet aggregation. This has not been reported in humans.
Antidiabetes Drugs
Theoretically, black pepper might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research shows that piperine, a constituent of black pepper, can reduce blood glucose levels. Monitor blood glucose levels closely. Dose adjustments might be necessary.
Atorvastatin (Lipitor)
Theoretically, black pepper might increase blood levels of atorvastatin.
Animal research shows that taking piperine, a constituent of black pepper, 35 mg/kg can increase the maximum serum concentration of atorvastatin three-fold. This has not been reported in humans.
Cyclosporine (Neoral, Sandimmune)
Theoretically, black pepper might increase the effects and side effects of cyclosporine.
In vitro research shows that piperine, a constituent of black pepper, increases the bioavailability of cyclosporine. This has not been reported in humans.
Cytochrome P450 2D6 (Cyp2D6) Substrates
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
In vitro research suggests that some constituents of black pepper inhibit CYP2D6. This has not been reported in humans.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
In vitro research and pharmacokinetic simulation data suggest that piperine, a constituent of black pepper, as well as the pepper fruit seem to inhibit CYP3A4. This has not been reported in humans.
Lithium
Theoretically, black pepper might increase blood levels of lithium due to its diuretic effects. The dose of lithium might need to be reduced.
Black pepper is thought to have diuretic properties.
Nevirapine (Viramune)
Black pepper might increase blood levels of nevirapine.
Clinical research shows that piperine, a constituent of black pepper, increases the plasma concentration of nevirapine. However, no adverse effects were observed in this study.
P-Glycoprotein Substrates
Theoretically, black pepper might increase levels of P-glycoprotein substrates.
In vitro research shows that piperine, a constituent of black pepper, seems to inhibit P-glycoprotein.
Pentobarbital (Nembutal)
Theoretically, black pepper might increase the sedative effects of pentobarbital.
Animal research shows that piperine, a constituent of black pepper, increases pentobarbital-induced sleeping time.
Phenytoin (Dilantin)
Black pepper might increase blood levels of phenytoin.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption, slow elimination, and increase levels of phenytoin. Taking a single dose of black pepper 1 gram along with phenytoin seems to double the serum concentration of phenytoin. Consuming a soup with black pepper providing piperine 44 mg/200 mL of soup along with phenytoin also seems to increase phenytoin levels when compared with consuming the same soup without black pepper.
Propranolol (Inderal)
Black pepper might increase blood levels of propranolol.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption and slow elimination of propranolol.
Rifampin (Rifadin)
Black pepper might increase blood levels of rifampin.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption and serum levels of rifampin.
Theophylline
Black pepper might increase blood levels of theophylline.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption and slow elimination of theophylline.
Amoxicillin (Amoxil, Trimox)
Theoretically, black pepper might increase the effects and side effects of amoxicillin.
Animal research shows that taking piperine, a constituent of black pepper, with amoxicillin increases plasma levels of amoxicillin. This has not been reported in humans.
Carbamazepine (Tegretol)
Theoretically, black pepper might increase blood levels of carbamazepine, potentially increasing the effects and side effects of carbamazepine.
One clinical study in patients taking carbamazepine 300 mg or 500 mg twice daily shows that taking a single 20 mg dose of purified piperine, a constituent of black pepper, increases carbamazepine levels. Piperine may increase carbamazepine absorption by increasing blood flow to the GI tract, increasing the surface area of the small intestine, or inhibiting cytochrome P450 3A4 (CYP3A4) in the gut wall. Absorption was significantly increased by 7-10 mcg/mL/hour. The time to eliminate carbamazepine was also increased by 4-8 hours. Although carbamazepine levels were increased, this did not appear to increase side effects. In vitro research also shows that piperine can increase carbamazepine levels by 11% in a time-dependent manner.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
In vitro research suggests that black pepper induces CYP1A2. This has not been reported in humans.
Brand information
Manufacturer and brand details for DIM +BioPerine, from the product label.
Purely Optimal
See all Purely Optimal products- Name
- Purely Optimal Nutrition Inc.
- City
- San Jose
- State
- CA
- ZipCode
- 95132
- Phone Number
- 1-800-738-6018
- Web Address
- www.purelyoptimal.com
DIM +BioPerine by Purely Optimal: Common Questions
Does DIM +BioPerine by Purely Optimal interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is BioPerine, and why is it in this product?
Is black pepper safe to take as a supplement?
Can I take this if I'm pregnant or breastfeeding?
What is DIM, and does it interact with medications?
Does this product actually work for anything?
Are there any fillers or other ingredients in here?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if DIM +BioPerine is safe with your meds?
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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 DIM +BioPerine’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
DIM +BioPerine'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 29 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.
Black Pepper 29 references
- Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Bano G, Amla V, Raina RK, et al. The effect of piperine on pharmacokinetics of phenytoin in healthy volunteers. Planta Med 1987;53:568-9. PubMed
- Bano G, et al. Effect of piperine on bioavailability and pharmacokinetics of propranolol and theophylline in healthy volunteers. Eur J Clin Pharmacol 1991;41;615-7. PubMed
- Cohle SD, Trestrail JD III, Graham MA, et al. Fatal pepper aspiration. Am J Dis Child 1988;142:633-6. PubMed
- Bhardwaj RK, Glaeser H, Becquemont L, et al. Piperine, a major constituent of black pepper, inhibits human P-glycoprotein and CYP3A4. J Pharmacol Exp Ther 2002;302:645-50. PubMed
- Velpandian T, Jasuja R, Bhardwaj RK, et al. Piperine in food: interference in the pharmacokinetics of phenytoin. Eur J Drug Metab Pharmacokinet 2001;26:241-7. PubMed
- Pattanaik S, Hota D, Prabhakar S, et al. Pharmacokinetic interaction of a single dose of piperine with steady-state carbamazepine in epilepsy patients. Phytother Res 2009;23:1281-6.
- Munakata, M., Kobayashi, K., Niisato-Nezu, J., Tanaka, S., Kakisaka, Y., Ebihara, T., Ebihara, S., Haginoya, K., Tsuchiya, S., and Onuma, A. Olfactory stimulation using black pepper oil facilitates oral feeding in pediatric patients receiving long-term en
- Myers, B. M., Smith, J. L., and Graham, D. Y. Effect of red pepper and black pepper on the stomach. Am J Gastroenterol 1987;82(3):211-214.
- Raghavendra, R. H. and Naidu, K. A. Spice active principles as the inhibitors of human platelet aggregation and thromboxane biosynthesis. Prostaglandins Leukot.Essent.Fatty Acids 2009;81(1):73-78. PubMed
- Subehan, Usia, T., Kadota, S., and Tezuka, Y. Mechanism-based inhibition of human liver microsomal cytochrome P450 2D6 (CYP2D6) by alkamides of Piper nigrum. Planta Med 2006;72(6):527-532.
- Kasibhatta, R. and Naidu, M. U. Influence of piperine on the pharmacokinetics of nevirapine under fasting conditions: a randomised, crossover, placebo-controlled study. Drugs R.D. 2007;8(6):383-391. PubMed
- Usia, T., Iwata, H., Hiratsuka, A., Watabe, T., Kadota, S., and Tezuka, Y. CYP3A4 and CYP2D6 inhibitory activities of Indonesian medicinal plants. Phytomedicine. 2006;13(1-2):67-73. PubMed
- Mujumdar, A. M., Dhuley, J. N., Deshmukh, V. K., Raman, P. H., Thorat, S. L., and Naik, S. R. Effect of piperine on pentobarbitone induced hypnosis in rats. Indian J Exp.Biol. 1990;28(5):486-487.
- Panda, S. and Kar, A. Piperine lowers the serum concentrations of thyroid hormones, glucose and hepatic 5'D activity in adult male mice. Horm.Metab Res. 2003;35(9):523-526. PubMed
- Lawless, H. and Stevens, D. A. Effects of oral chemical irritation on taste. Physiol Behav. 1984;32(6):995-998. PubMed
- Hiwale, A. R., Dhuley, J. N., and Naik, S. R. Effect of co-administration of piperine on pharmacokinetics of beta-lactam antibiotics in rats. Indian J Exp.Biol. 2002;40(3):277-281.
- Han, Y., Chin Tan, T. M., and Lim, L. Y. In vitro and in vivo evaluation of the effects of piperine on P-gp function and expression. Toxicol.Appl.Pharmacol. 8-1-2008;230(3):283-289. PubMed
- Sharma, P., Varma, M. V., Chawla, H. P., and Panchagnula, R. In situ and in vivo efficacy of peroral absorption enhancers in rats and correlation to in vitro mechanistic studies. Farmaco 2005;60(11-12):874-883. PubMed
- Aher, S., Biradar, S., Gopu, C. L., and Paradkar, A. Novel pepper extract for enhanced P-glycoprotein inhibition. J Pharm.Pharmacol. 2009;61(9):1179-1186. PubMed
- Zutshi, R. K., Singh, R., Zutshi, U., Johri, R. K., and Atal, C. K. Influence of piperine on rifampicin blood levels in patients of pulmonary tuberculosis. J Assoc.Physicians India 1985;33(3):223-224.
- Marotta, R. B. and Floch, M. H. Diet and nutrition in ulcer disease. Med Clin North Am 1991;75(4):967-979. PubMed
- Subehan, Usia, T., Iwata, H., Kadota, S., and Tezuka, Y. Mechanism-based inhibition of CYP3A4 and CYP2D6 by Indonesian medicinal plants. J Ethnopharmacol. 5-24-2006;105(3):449-455. PubMed
- Gimenez L, Zacharisen M. Severe pepper allergy in a young child. WMJ. 2011 Jun;110(3):138-9.
- Ren T, Yang M, Xiao M, Zhu J, Xie W, Zuo Z. Time-dependent inhibition of carbamazepine metabolism by piperine in anti-epileptic treatment. Life Sci. 2019;218:314-323. PubMed
- Thomas AB, Choudhary DC, Raje A, Nagrik SS. Pharmacokinetics and pharmacodynamic herb-drug interaction of piperine with atorvastatin in rats. J Chromatogr Sci 2021;59(4):371-80. PubMed
- Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed
- Lin F, Hu Y, Zhang Y, Zhao L, Zhong D, Liu J. Predicting Food-Drug Interactions between Piperine and CYP3A4 Substrate Drugs Using PBPK Modeling. Int J Mol Sci 2024;25(20):10955. PubMed
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