Phenix Ingredients & Drug Interactions
by MTN OPS
What is this page for?
First and foremost: checking Phenix 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
Phenix is a dietary supplement by MTN OPS 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 Black Pepper Fruit Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Phenix by MTN OPS
Ask about any prescription or over-the-counter medication and we check it for interactions with Phenix by MTN OPS — 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 Phenix by MTN OPS
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
Phenix has 2 active ingredients. Black pepper fruit extract contains piperine, a compound that has been studied for various health uses.
Bovine colostrum concentrate is a milk-based substance from cattle that contains immune and growth factors. The product also includes silica and hypromellose as inactive ingredients (binders and capsule material).
Does it work?
Moderate evidence
The evidence for black pepper extract in Phenix is not established — the data we hold shows insufficient reliable evidence for allergic rhinitis, asthma, athletic performance, headache, depression, and diarrhea. Bovine colostrum, on the other hand, is possibly effective for HIV/AIDS-related diarrhea and rotaviral diarrhea (intestinal infection with rotavirus), and possibly effective for exercise-induced respiratory infections.
It is rated possibly ineffective for necrotizing enterocolitis (a serious intestinal condition in newborns).
How safe is it?
Well-documented data
Black pepper in food amounts is generally well tolerated. When taken as a concentrated supplement like this product, though, safety is not as well studied and should be used more cautiously.
The most common side effects from oral black pepper are a burning aftertaste, indigestion, and altered taste. Rarely, sensitive individuals may have an allergic reaction.
Bovine colostrum is generally well tolerated in most adults, but anyone with a milk or dairy allergy should avoid it. Safety during pregnancy and breastfeeding is not well studied, so talk with your doctor or pharmacist before use if you are pregnant or nursing.
A small number of people in clinical trials reported mild bloating, nausea, diarrhea, or upset stomach — at about the same rate as those taking a whey-based comparison.
Meds to double-check
Moderate interaction found
Check before adding this product if you take propranolol or other heart and blood-pressure medications, anti-seizure drugs like phenytoin, HIV medications like nevirapine, antibiotics like rifampin, cyclosporine, sedatives, cholesterol drugs like atorvastatin, or theophylline for asthma. All of these can have Moderate interactions with the black pepper in this product.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
If you take any prescription medications — especially heart, blood pressure, anti-seizure, HIV, antibiotic, or asthma drugs — check with us before starting Phenix. The black pepper extract can raise blood levels of several medications in ways that matter.
If you have a dairy allergy, avoid this product. Talk to your pharmacist about whether it's right for you.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 21, 2024.
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 Phenix, straight from the product 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 Phenix by MTN OPS, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Black Pepper Fruit Extract | 5 mg | -- |
| Bovine Colostrum Concentrate | 1 Gram(s) | -- |
Other ingredients: Silica, Hypromellose
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.
Formulation
Muscle recovery x joint health Easy-swallow capsules
Naturally gluten-free
Benefits: Muscle recovery Immune support High performance Joint health Revived strength Overall health
Manufactured in the USA with quality ingredients sourced worldwide
FDA Statement of Identity
Dietary Supplement
Precautions
Contains: Milk
Suggested/Recommended/Usage/Directions
Directions: Take 1 serving (2 capsules) immediately after an intense workout or physical activity.
Storage
Storage: Store in a cool, dry place, out of direct sunlight.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Phenix by MTN OPS 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 Phenix by MTN OPS
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 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.
Black Pepper Fruit Extract
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...
Black Pepper Fruit Extract monograph & interactionsBovine Colostrum Concentrate
No knowninteractions
Bovine colostrum is the nutrient-rich first milk from cows, packed with antibodies, growth factors, and protein. Early research suggests it may help w...
Bovine Colostrum Concentrate monograph & interactionsOther (inactive) ingredients: Silica, Hypromellose. These complete the product’s ingredient list but are not active constituents.
Phenix by MTN OPS Drug Interactions
HelloPharmacist Interaction Report
Phenix by MTN OPS contains black pepper fruit extract, which interacts with a number of medications.
The most serious concern is with anti-seizure drugs like phenytoin (Dilantin): black pepper can significantly increase blood levels of phenytoin, and in some cases may even double the amount in your bloodstream. This happens because a compound in black pepper called piperine slows how your body clears the drug.
Read the full breakdown — every affected drug type, severity by severity
Black pepper also interacts with heart and blood-pressure medications (propranolol), HIV medications (nevirapine), antibiotics (rifampin), and other drugs including cyclosporine (used after transplant), sedatives (pentobarbital), cholesterol medications (atorvastatin), and asthma/breathing medications (theophylline). All of these are Moderate-severity interactions — the drug levels may rise, which could mean stronger effects or unwanted side effects.
Bovine colostrum concentrate, the other active ingredient, has no documented interactions.
Altogether, these interactions span 1,005 individual medications. Use the medication checker on this page to search your exact prescriptions before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Phenix?
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 Phenix interact with 1,019 drugs. Click any drug to see the details.
1 of the 2 ingredients in Phenix interact with drugs. Each result below shows which ingredient is responsible. Black Pepper Fruit Extract
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, black pepper might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
Read the full Black Pepper Fruit Extract + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, black pepper might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
Read the full Black Pepper Fruit Extract + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractP-glycoprotein Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of P-glycoprotein substrates.
Read the full Black Pepper Fruit Extract + Acalabrutinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, black pepper might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Black Pepper Fruit Extract + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, black pepper might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
Read the full Black Pepper Fruit Extract + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractAnticoagulant/antiplatelet Drugs, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
Read the full Black Pepper Fruit Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Anticoagulant/antiplatelet Drugs +1 Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
Read the full Black Pepper Fruit Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
Read the full Black Pepper Fruit Extract + 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 Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
Read the full Black Pepper Fruit Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Phenix — through 1 ingredient. Tap an ingredient for the detail:
Black Pepper Fruit ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
Read the full Black Pepper Fruit Extract + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Phenix 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.
Black Pepper Fruit Extract
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 Phenix, from the product label.
Phenix by MTN OPS: Common Questions
Does Phenix by MTN OPS interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What does black pepper extract actually do in this product?
Will this help with diarrhea?
What if I'm allergic to dairy?
Are there any side effects from the black pepper in this?
Can I take this while pregnant or breastfeeding?
Is black pepper extract safe long-term?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Phenix is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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 Phenix’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Black Pepper
Interacts with 1,019 drugsBlack 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 help the body absorb other ingredients (li...
Read the full Black Pepper monograph → Herb & supplement monographBovine Colostrum
Bovine colostrum is the nutrient-rich first milk from cows, packed with antibodies, growth factors, and protein. Early research suggests it may help with gut health, certain types of diarrhe...
Read the full Bovine Colostrum monograph →Sources & How We Checked
Phenix'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 37 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
Bovine Colostrum 8 references
- Lewis CJ. Letter to reiterate certain public health and safety concerns to firms manufacturing or importing dietary supplements that contain specific bovine tissues. FDA. Available at: www.cfsan.fda.gov/~dms/dspltr05.html.
- Greenberg PD, Cello JP. Treatment of severe diarrhea caused by Cryptosporidium parvum with oral bovine immunoglobulin concentrate in patients with AIDS. J Acquir Immune Defic Syndr Hum Retrovirol 1996;13:348-54. PubMed
- Duff WR, Chilibeck PD, Rooke JJ, Kaviani M, Krentz JR, Haines DM. The effect of bovine colostrum supplementation in older adults during resistance training. Int J Sport Nutr Exerc Metab. 2014 Jun;24(3):276-85. PubMed
- Sanctuary MR, Kain JN, Chen SY, et al. Pilot study of probiotic/colostrum supplementation on gut function in children with autism and gastrointestinal symptoms. PLoS One. 2019;14(1):e0210064. PubMed
- Porcaro F, Caminiti L, Crisafulli G, Guglielmo F, Pajno GB. Anaphylaxis to cutaneous exposure to bovine colostrum based cream. Asian Pac J Allergy Immunol. 2019;37(1):9-11.
- Yan X, Pan X, Ding L, et al. Bovine colostrum to supplement the first feeding of very preterm infants: The PreColos randomized controlled trial. Clin Nutr 2023;42(8):1408-1417. PubMed
- Halasa M, Skonieczna-Zydecka K, Machalinski B, Bühner L, Baskiewicz-Halasa M. Six Weeks of Supplementation with Bovine Colostrum Effectively Reduces URTIs Symptoms Frequency and Gravity for Up to 20 Weeks in Pre-School Children. Nutrients 2023;15(16):3626 PubMed
- Simonsen MB, Kappel SS, Aunsholt L, Möller S, Sangild PT, Zachariassen G. Mineral supplementation for very preterm infants fed fortified human milk. J Pediatr Gastroenterol Nutr 2024;78(6):1389-1397. 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.
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