Phyto-Gen Ener-gen Ingredients & Drug Interactions
by Genestra Brands
What is this page for?
First and foremost: checking Phyto-Gen Ener-gen 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
Phyto-Gen Ener-gen is a dietary supplement by Genestra Brands with 3 active ingredients. Its ingredients are commonly taken for antioxidant support, heart and circulation health, vein problems (such as varicose veins).Based on those ingredients, 1,025 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Grape (Vitis vinifera) bud extract, Sea Buckthorn (Hippophae rhamnoides) bud extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Phyto-Gen Ener-gen by Genestra Brands
Ask about any prescription or over-the-counter medication and we check it for interactions with Phyto-Gen Ener-gen by Genestra Brands — 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 Phyto-Gen Ener-gen by Genestra Brands
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
Phyto-Gen Ener-gen contains 3 active ingredients, all bud extracts: oak (Quercus robur), grape (Vitis vinifera), and sea buckthorn (Hippophae rhamnoides). The liquid also includes purified water, ethanol, and glycerin as inactive ingredients.
Does it work?
Moderate evidence
For grape extract, the data shows it may be effective for chronic venous insufficiency (CVI)—a condition affecting blood flow in leg veins—but appears ineffective for chemotherapy-related nausea, hay fever, and weight loss. Sea buckthorn extract appears possibly effective for burns but possibly ineffective for eczema; evidence for its effects on cholesterol levels, aging skin, and cancer is too limited to rate.
No effectiveness rating is provided for oak extract in the data we hold.
How safe is it?
Well-documented data
Grape extract is generally well tolerated when taken by mouth. Common side effects are mild and include abdominal pain, diarrhea, dry mouth, upset stomach, headache, joint pain, and nausea; rarely, severe allergic reaction (anaphylaxis) to grape skin has occurred.
Sea buckthorn may cause yellow staining of the skin at high doses and can cause rash, dryness, or irritation when applied topically. Grape concentrate should be avoided in pregnancy due to limited safety data and alcohol content; whole grapes as food are fine.
There isn't enough information on sea buckthorn supplements during pregnancy or breastfeeding, so talk with your doctor or pharmacist for personalized guidance.
Meds to double-check
Moderate interaction found
Before taking this product, check with your doctor or pharmacist if you use blood thinners or antiplatelet drugs (warfarin, aspirin, clopidogrel, dabigatran), blood pressure medications, cyclosporine (an immunosuppressant), phenacetin, midazolam or other sedatives, or any drug metabolized by your liver's CYP1A2, CYP2D6, CYP2E1, or CYP3A4 enzymes. Separating grape extract from cyclosporine by at least 2 hours may help, but your pharmacist can advise on the best timing for your specific drugs.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
This product may help with chronic venous insufficiency and burns, but its grape and sea buckthorn content interacts with a large range of medications—especially blood thinners, blood pressure drugs, and certain sedatives. If you take any prescription medications, check each one with the interaction tool below before starting.
Talk with your doctor or pharmacist about whether this product fits your situation.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 23, 2020.
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 Phyto-Gen Ener-gen, straight from the product label.
| Brand | Genestra Brands |
|---|---|
| Barcode (UPC) | 883196116218 |
| Net contents | 0.5 Fluid Ounce(s); 15 Milliliter(s) |
| Market status | On market |
| Date entered into DSLD | Jul 23, 2020 |
| DSLD ID | 230964 |
| Product type | Botanical |
| Supplement form | Liquid |
| 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 Phyto-Gen Ener-gen by Genestra Brands, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Oak (Quercus robur) bud extract | 0.09 mL | -- |
| Grape (Vitis vinifera) bud extract | 0.09 mL | -- |
| Sea Buckthorn (Hippophae rhamnoides) bud extract | 0.09 mL | -- |
Other ingredients: purified Water, Ethanol, Glycerin
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
Recommended Dose: Take 10 drops once daily or as recommended by your health professional. Invert bottle to 45 degrees and shake lightly allowing drops to fall directly into mouth or in 1/4 oz of water.
General Statements
For warnings and additional information, see outer box.
Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.
Scan to learn about our quality excellence
Precautions
Keep out of the reach of children.
Use only if safety seal is intact.
Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.
This product was sealed for your protection. Do not use if box or contents are open or damaged.
Storage
Store in a cool, dry place.
FDA Statement of Identity
Dietary Supplement
Formula
Oak Grape Sea Buckthorn
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Phyto-Gen Ener-gen by Genestra Brands 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 Phyto-Gen Ener-gen by Genestra Brands
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size0.28 mL Dosage formLiquid Servings per container53 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.
Oak (Quercus robur) bud extract
Grape (Vitis vinifera) bud extract
Interacts with910 drugs
Grapes and grape products like grape seed extract contain antioxidant compounds such as resveratrol and proanthocyanidins that may support heart and b...
Grape (Vitis vinifera) bud extract monograph & interactionsSea Buckthorn (Hippophae rhamnoides) bud extract
Interacts with289 drugs
Sea buckthorn is a berry-bearing shrub rich in vitamins, carotenoids, and fatty acids that people use for skin, eye, digestive, and heart health. Earl...
Sea Buckthorn (Hippophae rhamnoides) bud extract monograph & interactionsOther (inactive) ingredients: Purified Water, Ethanol, Glycerin. These complete the product’s ingredient list but are not active constituents.
Phyto-Gen Ener-gen by Genestra Brands Drug Interactions
HelloPharmacist Interaction Report
Phyto-Gen Ener-gen by Genestra Brands contains grape and sea buckthorn bud extracts, both of which interact with medications.
The most serious concern is moderate-severity: grape extract may reduce how well your body absorbs cyclosporine (an immunosuppressant), cutting its levels by up to 30% if taken together—separating doses by at least 2 hours helps.
Read the full breakdown — every affected drug type, severity by severity
Grape extract also affects how your liver processes several categories of drugs. It may reduce levels of CYP1A2 substrates (like phenacetin) and theoretically increase levels of CYP2D6 and CYP2E1 substrates, making some drugs work differently than expected.
It can also interfere with CYP3A4 substrates and may reduce how well midazolam (a sedative) works if you take grape extract long-term. Additionally, both grape and sea buckthorn extracts may increase bleeding risk if you're on blood thinners (anticoagulants) or antiplatelet drugs.
Sea buckthorn extract may lower your blood pressure, so combining it with blood pressure medications could push levels too low. Altogether, these interactions span 1,026 individual medications.
We could not check oak bud extract—no data is on file for it. Use the interaction checker below with your exact medications before starting this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Phyto-Gen Ener-gen?
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 Phyto-Gen Ener-gen interact with 1,025 drugs. Click any drug to see the details.
2 of the 3 ingredients in Phyto-Gen Ener-gen interact with drugs. Each result below shows which ingredient is responsible. Grape (Vitis vinifera) bud extract Sea Buckthorn (Hippophae rhamnoides) bud extract
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Phyto-Gen Ener-gen — through 2 ingredients. Tap an ingredient for the detail:
Sea Buckthorn (hippophae Rhamnoides) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Sea Buckthorn (hippophae Rhamnoides) Bud Extract + Abciximab interactionGrape (vitis Vinifera) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, grape extracts may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Grape (vitis Vinifera) Bud Extract + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Phyto-Gen Ener-gen — through 2 ingredients. Tap an ingredient for the detail:
Sea Buckthorn (hippophae Rhamnoides) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Sea Buckthorn (hippophae Rhamnoides) Bud Extract + Abrocitinib interactionGrape (vitis Vinifera) Bud ExtractCytochrome P450 2c9 (cyp2c9) Substrates, Anticoagulant/antiplatelet Drugs Moderate
Interaction Summary
It is unclear if grape juice or grape seed extract inhibits CYP2C9; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Acalabrutinib interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Sea Buckthorn (hippophae Rhamnoides) Bud ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, taking sea buckthorn with antihypertensive drugs might increase the risk of hypotension.
Read the full Sea Buckthorn (hippophae Rhamnoides) Bud Extract + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Phyto-Gen Ener-gen — through 2 ingredients. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, grape extracts may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Grape (vitis Vinifera) Bud Extract + Acenocoumarol interactionSea Buckthorn (hippophae Rhamnoides) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Sea Buckthorn (hippophae Rhamnoides) Bud Extract + Acenocoumarol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Phyto-Gen Ener-gen — through 2 ingredients. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Anticoagulant/antiplatelet Drugs +1 Moderate
Interaction Summary
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Aspirin interactionSea Buckthorn (hippophae Rhamnoides) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Sea Buckthorn (hippophae Rhamnoides) Bud Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Phyto-Gen Ener-gen — through 2 ingredients. Tap an ingredient for the detail:
Sea Buckthorn (hippophae Rhamnoides) Bud ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Sea Buckthorn (hippophae Rhamnoides) Bud Extract + Acetaminophen, Aspirin, Caffeine interactionGrape (vitis Vinifera) Bud ExtractAnticoagulant/antiplatelet Drugs, Cytochrome P450 2e1 (cyp2e1) Substrates +2 Moderate
Interaction Summary
Theoretically, grape extracts may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates +1 Moderate
Interaction Summary
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud 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 Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates +1 Moderate
Interaction Summary
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates +2 Moderate
Interaction Summary
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates +2 Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
Read the full Grape (vitis Vinifera) Bud 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 Phyto-Gen Ener-gen — through 1 ingredient. Tap an ingredient for the detail:
Grape (vitis Vinifera) Bud ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
Read the full Grape (vitis Vinifera) Bud Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Phyto-Gen Ener-gen 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.
Grape (Vitis vinifera) bud extract
Anticoagulant/Antiplatelet Drugs
Theoretically, grape extracts may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro evidence suggests that grape extracts might decrease platelet aggregation.
Cyclosporine (Neoral, Sandimmune)
Ingesting grape juice with cyclosporine can reduce cyclosporine absorption.
A small pharmacokinetic study in healthy young adults shows that intake of purple grape juice 200 mL along with cyclosporine can decrease the absorption of cyclosporine by up to 30% when compared with water. Separate doses of grape juice and cyclosporine by at least 2 hours to avoid this interaction.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, grape juice might reduce the levels of CYP1A2 substrates.
A small pharmacokinetic study in healthy adults shows that ingestion of 200 mL of grape juice decreases phenacetin plasma levels. This is thought to be due to induction of CYP1A2.
Cytochrome P450 2D6 (Cyp2D6) Substrates
Theoretically, grape seed extract may increase the levels of CYP2D6 substrates.
In vitro evidence suggests that grape seed extract might inhibit CYP2D6 enzymes. However, this interaction has not been reported in humans.
Cytochrome P450 2E1 (Cyp2E1) Substrates
Theoretically, grape seed extract might increase the levels of CYP2E1 substrates.
In vitro and animal research suggests that grape seed proanthocyanidin extract inhibits CYP2E1 enzymes. However, this interaction has not been reported in humans.
Cytochrome P450 3A4 (Cyp3A4) Substrates
It is unclear if grape seed extract inhibits or induces CYP3A4; research is conflicting.
In vitro evidence suggests that grape seed extract might inhibit CYP3A4 enzymes. However, evidence from animal research shows that grape seed extract may induce CYP3A4 in the liver. So far, these interactions have not been reported in humans.
Midazolam (Versed)
Theoretically, long-term intake of grape seed extract might decrease the effects of midazolam.
Animal research shows that subchronic ingestions of grape seed extract can increase the elimination of intravenous midazolam by increasing hepatic CYP3A4 activity. Single doses of grape seed extract do not appear to affect midazolam elimination.
Phenacetin
Grape juice might decrease phenacetin absorption.
A small pharmacokinetic study in healthy adults shows that ingestion of 200 mL of grape juice decreases phenacetin plasma levels. This is thought to be due to induction of cytochrome P450 1A2 (CYP1A2).
Cytochrome P450 2C9 (Cyp2C9) Substrates
It is unclear if grape juice or grape seed extract inhibits CYP2C9; research is conflicting.
In vitro evidence shows that grape seed extract or grape juice might inhibit CYP2C9 enzymes. However, a small pharmacokinetic study in healthy adults shows that drinking 8 ounces of grape juice once does not affect the clearance of flurbiprofen, a probe-drug for CYP2C9 metabolism. The effects of continued grape juice consumption are unclear.
Sea Buckthorn (Hippophae rhamnoides) bud extract
Anticoagulant/Antiplatelet Drugs
Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Clinical research suggests that sea buckthorn fruit extracts can inhibit platelet aggregation and adhesion to collagen and fibrinogen.
Antihypertensive Drugs
Theoretically, taking sea buckthorn with antihypertensive drugs might increase the risk of hypotension.
Taking sea buckthorn appears to reduce blood pressure in some patients.
Brand information
Manufacturer and brand details for Phyto-Gen Ener-gen, from the product label.
Genestra Brands
- Name
- Seroyal USA
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15275
- Phone Number
- 1-888-737-6925
- Web Address
- seroyal.com
Phyto-Gen Ener-gen by Genestra Brands: Common Questions
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The Full Monographs Behind Phyto-Gen Ener-gen’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Grape
Interacts with 910 drugsGrapes and grape products like grape seed extract contain antioxidant compounds such as resveratrol and proanthocyanidins that may support heart and blood vessel health. While the food is he...
Read the full Grape monograph → Herb & supplement monographSea Buckthorn
Interacts with 289 drugsSea buckthorn is a berry-bearing shrub rich in vitamins, carotenoids, and fatty acids that people use for skin, eye, digestive, and heart health. Early research is promising for a few uses l...
Read the full Sea Buckthorn monograph →Sources & How We Checked
Phyto-Gen Ener-gen'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 41 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.
Grape 34 references
- Kiesewetter H, Koscielny J, Kalus U, et al. Efficacy of orally administered extract of red vine leaf AS 195 (folia vitis viniferae) in chronic venous insufficiency (stages I-II). A randomized, double-blind, placebo-controlled trial. Arzneimittelforschung
- Xiao Dong S, Zhi Ping Z, Zhong Xiao W, et al. Possible enhancement of the first-pass metabolism of phenacetin by ingestion of grape juice in Chinese subjects. Br J Clin Pharmacol 1999;48:638-40. PubMed
- Vaswani SK, Hamilton RG, Carey RN, et al. Anaphylaxis recurrent urticaria and angioedema from grape hypersensitivity. J Allergy Clin Immunol 1998;101:S31.
- Chevallier A. The Encyclopedia of Medicinal Plants. London, UK: Dorling Kindersley, Ltd., 1996.
- Bernstein DI, Bernstein CK, Deng C, et al. Evaluation of the clinical efficacy and safety of grapeseed extract in the treatment of fall seasonal allergic rhinitis: a pilot study. Ann Allergy Asthma Immunol 2002;88:272-8.. PubMed
- Greenblatt DJ, von Moltke LL, Perloff ES, et al. Interaction of flurbiprofen with cranberry juice, grape juice, tea, and fluconazole: in vitro and clinical studies. Clin Pharmacol Ther 2006;79:125-33. PubMed
- Ward NC, Hodgson JM, Croft KD, et al. The combination of vitamin C and grape-seed polyphenols increases blood pressure: a randomized, double-blind, placebo-controlled trial. J Hypertens 2005;23:427-34.. PubMed
- Ray, S. D., Parikh, H., Hickey, E., Bagchi, M., and Bagchi, D. Differential effects of IH636 grape seed proanthocyanidin extract and a DNA repair modulator 4-aminobenzamide on liver microsomal cytochrome 4502E1-dependent aniline hydroxylation. Mol Cell B PubMed
- O'Byrne, D. J., Devaraj, S., Grundy, S. M., and Jialal, I. Comparison of the antioxidant effects of Concord grape juice flavonoids alpha-tocopherol on markers of oxidative stress in healthy adults. Am J Clin.Nutr. 2002;76(6):1367-1374.
- Schaefer, E., Peil, H., Ambrosetti, L., and Petrini, O. Oedema protective properties of the red vine leaf extract AS 195 (Folia vitis viniferae) in the treatment of chronic venous insufficiency. A 6-week observational clinical trial. Arzneimittelforschun PubMed
- Nishikawa, M., Ariyoshi, N., Kotani, A., Ishii, I., Nakamura, H., Nakasa, H., Ida, M., Nakamura, H., Kimura, N., Kimura, M., Hasegawa, A., Kusu, F., Ohmori, S., Nakazawa, K., and Kitada, M. Effects of continuous ingestion of green tea or grape seed extra
- de Lange, D. W., Scholman, W. L., Kraaijenhagen, R. J., Akkerman, J. W., and van de Wiel, A. Alcohol and polyphenolic grape extract inhibit platelet adhesion in flowing blood. Eur.J Clin.Invest 2004;34(12):818-824. PubMed
- Samet, J. M. and Coultas, D. B. Reduced forced vital capacity in California grape workers. What does it mean? Am Rev.Respir.Dis 1992;145(2 Pt 1):255-256. PubMed
- Gamsky, T. E., McCurdy, S. A., Samuels, S. J., and Schenker, M. B. Reduced FVC among California grape workers. Am Rev.Respir.Dis 1992;145(2 Pt 1):257-262. PubMed
- de Lange, D. W., Verhoef, S., Gorter, G., Kraaijenhagen, R. J., van de Wiel, A., and Akkerman, J. W. Polyphenolic grape extract inhibits platelet activation through PECAM-1: an explanation for the French paradox. Alcohol Clin.Exp.Res 2007;31(8):1308-1314 PubMed
- Etheridge, A. S., Black, S. R., Patel, P. R., So, J., and Mathews, J. M. An in vitro evaluation of cytochrome P450 inhibition and P-glycoprotein interaction with goldenseal, Ginkgo biloba, grape seed, milk thistle, and ginseng extracts and their constitu
- Krikorian, R., Nash, T. A., Shidler, M. D., Shukitt-Hale, B., and Joseph, J. A. Concord grape juice supplementation improves memory function in older adults with mild cognitive impairment. Br J Nutr. 2010;103(5):730-734. PubMed
- Ingersoll, G. L., Wasilewski, A., Haller, M., Pandya, K., Bennett, J., He, H., Hoffmire, C., and Berry, C. Effect of concord grape juice on chemotherapy-induced nausea and vomiting: results of a pilot study. Oncol.Nurs.Forum 2010;37(2):213-221. PubMed
- Oliveira-Freitas, V. L., Dalla, Costa T., Manfro, R. C., Cruz, L. B., and Schwartsmann, G. Influence of purple grape juice in cyclosporine bioavailability. J Ren Nutr. 2010;20(5):309-313. PubMed
- Hollis, J. H., Houchins, J. A., Blumberg, J. B., and Mattes, R. D. Effects of concord grape juice on appetite, diet, body weight, lipid profile, and antioxidant status of adults. J Am Coll.Nutr. 2009;28(5):574-582. PubMed
- Dohadwala, M. M., Hamburg, N. M., Holbrook, M., Kim, B. H., Duess, M. A., Levit, A., Titas, M., Chung, W. B., Vincent, F. B., Caiano, T. L., Frame, A. A., Keaney, J. F., Jr., and Vita, J. A. Effects of Concord grape juice on ambulatory blood pressure in
- Rabe, E., Stucker, M., Esperester, A., Schafer, E., and Ottillinger, B. Efficacy and tolerability of a red-vine-leaf extract in patients suffering from chronic venous insufficiency--results of a double-blind placebo-controlled study. Eur.J Vasc.Endovasc. PubMed
- Trotta, M., Cesaretti, M., Conzi, R., Derchi, L. E., and Borgonovo, G. Elderly male with mesogastric pain. Small bowel obstruction caused by an intact fresh grape. Ann.Emerg.Med 2011;58(4):e1-e2. PubMed
- McCurdy, S. A., Wiggins, P., Schenker, M. B., Munn, S., Shaieb, A. M., Weinbaum, Z., Goldsmith, D., McGillis, S. T., Berman, B., and Samuels, S. Assessing dermatitis in epidemiologic studies: occupational skin disease among California grape and tomato ha
- Winter, C. K. and Kurtz, P. H. Factors influencing grape worker susceptibility to skin rashes. Bull.Environ.Contam Toxicol. 1985;35(3):418-426. PubMed
- Yamasaki, R., Dekio, S., and Jidoi, J. Contact dermatitis from grape bud. Contact Dermatitis 1985;12(4):226-227. PubMed
- Cox, J. and Grigg, M. Small bowel obstruction by an intact grape. J Am Geriatr.Soc 1986;34(7):550. PubMed
- Faircloth, D. E. and Robison, W. J. Obstruction of the sigmoid colon by grape seeds. JAMA 11-27-1981;246(21):2430. PubMed
- Marguerie, C. and Drouet, M. [Occupational eosinophilic lung in a grape grower: role of sulfites]. Allerg.Immunol.(Paris) 1995;27(5):163-167.
- Brito, FF., Martinez, A., Palacios, R., Mur, P., Gomez, E., Galindo, P. A., Borja, J., and Martinez, J. Rhinoconjunctivitis and asthma caused by vine pollen: a case report. J Allergy Clin Immunol 1999;103(2 Pt 1):262-266. PubMed
- Ras RT, Zock PL, Zebregs YE, et al. Effect of polyphenol-rich grape seed extract on ambulatory blood pressure in subjects with pre- and stage I hypertension. Br J Nutr 2013;110(12):2234-41. PubMed
- Berry AC, Nakshabendi R, Abidali H, et al. Adverse effects of grape seed extract supplement: A clinical case and long-term follow-up. J Diet Suppl. 2016;13(2):232-5. PubMed
- Martínez-Maqueda D, Zapatera B, Gallego-Narbón A, Vaquero MP, Saura-Calixto F, Pérez-Jiménez J. A 6-week supplementation with grape pomace to subjects at cardiometabolic risk ameliorates insulin sensitivity, without affecting other metabolic syndrome mark
- Moon SW, Shin YU, Cho H, Bae SH, Kim HK; and for the Mogen Study Group. Effect of grape seed proanthocyanidin extract on hard exudates in patients with non-proliferative diabetic retinopathy. Medicine (Baltimore) 2019;98(21):e15515. PubMed
Sea Buckthorn 7 references
- Johansson AK, Korte H, Yang B, et al. Sea buckthorn berry oil inhibits platelet aggregation. J Nutr Biochem 2000;11:491-5.. PubMed
- Grad, S. C., Muresan, I., and Dumitrascu, D. L. Generalized yellow skin caused by high intake of sea buckthorn. Forsch.Komplementmed. 2012;19(3):153-156. PubMed
- Vlasov, V. V. [Hippophae oil in the treatment of superficial skin burns]. Vestn.Dermatol Venerol. 1970;44(6):69-72.
- Chang BB, Wang F Xu TY Zhang QQ He J Zhang XJ Li J. Total flavones of Hippophae rhamnoides L. for essential hypertension: a systematic review of randomized controlled trials. Chinese Journal of Evidence-Based Medicine. 2009;9(11):1207-1213. DOI
- Olas B, Kontek B, Szczesna M, et al. Inhibition of blood platelet adhesion by phenolics rich fraction of Hippophae rhamnoides L. fruits. J Physiol Pharmacol. 2017;68(2):223-9.
- Larmo P, Järvinen R, Laihia J, et al. Effects of a sea buckthorn oil spray emulsion on dry eye. Cont Lens Anterior Eye. 2019;42(4):428-433. PubMed
- De Seta F, Caruso S, Di Lorenzo G, Romano F, Mirandola M, Nappi RE. Efficacy and safety of a new vaginal gel for the treatment of symptoms associated with vulvovaginal atrophy in postmenopausal women: A double-blind randomized placebo-controlled study. Ma 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