Phyto-Gen Defense-gen Ingredients & Drug Interactions
by Genestra Brands
What is this page for?
First and foremost: checking Phyto-Gen Defense-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 Defense-gen is a dietary supplement by Genestra Brands with 3 active ingredients. Its ingredients are commonly taken for sore throat and mouth inflammation, skin wounds and irritation (topical), fever and general aches (traditional).Based on those ingredients, 213 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dog Rose (Rosa canina) young shoot extract, Black Alder (Alnus glutinosa) bud extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Phyto-Gen Defense-gen by Genestra Brands
Ask about any prescription or over-the-counter medication and we check it for interactions with Phyto-Gen Defense-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 Defense-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 Defense-gen is a liquid formula with three active ingredients: black alder bud extract, silver birch bud extract, and dog rose (Rosa canina) young shoot extract. The liquid base contains purified water, ethanol, and glycerin as inactive ingredients.
Does it work?
Moderate evidence
For postoperative pain and osteoarthritis, dog rose is rated possibly effective in our data. For high cholesterol (hypoglycemia), there isn't enough reliable evidence to rate it.
We hold no effectiveness data for black alder or silver birch in the facts available to us.
How safe is it?
Well-documented data
Dog rose is generally well tolerated when eaten as food, though supplement safety is less studied. The most common side effects are flatulence and loose stools; gastrointestinal upset — including nausea, diarrhea, constipation, and heartburn — can occur, though these often happen at the same rate in people taking placebo.
Vertigo and headache have been reported rarely. Black alder has limited safety data and may cause nausea or stomach upset, so it should be used cautiously and briefly.
There isn't enough information to know how black alder affects pregnancy or breastfeeding, so it's best avoided during both. Dog rose safety during pregnancy and breastfeeding is also unknown, so talk with your doctor or pharmacist before taking it if you're pregnant, trying to become pregnant, or nursing.
Meds to double-check
Moderate interaction found
Before taking this product, check with your doctor or pharmacist if you take chemotherapy drugs (cisplatin, doxorubicin, alkylating agents, or antitumor antibiotics), hormonal birth control or hormone replacement therapy, blood thinners (anticoagulants like warfarin), lithium, aspirin, or aluminum supplements. The interactions are mostly Moderate, and a few with aspirin and warfarin are Minor, but your prescriber needs to know you're adding this.
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 be worth considering if you're looking at dog rose for osteoarthritis or post-op pain, but its ingredient interactions are significant — especially if you take chemotherapy, hormonal birth control, blood thinners, or lithium. The limited safety data on black alder adds to the caution.
Talk with your doctor or pharmacist about whether this product fits your medications and health situation before you start.
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 Defense-gen, straight from the product label.
| Brand | Genestra Brands |
|---|---|
| Barcode (UPC) | 883196116119 |
| Net contents | 0.5 Fluid Ounce(s); 15 Milliliter(s) |
| Market status | On market |
| Date entered into DSLD | Jul 23, 2020 |
| DSLD ID | 230965 |
| 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 Defense-gen by Genestra Brands, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Black Alder (Alnus glutinosa) bud extract | 0.09 mL | -- |
| Silver Birch (Betula pendula) bud extract | 0.09 mL | -- |
| Dog Rose (Rosa canina) young shoot 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
Dog Rose Black Alder Silver Birch
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Phyto-Gen Defense-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 Defense-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.
Black Alder (Alnus glutinosa) bud extract
Interacts with2 drugs
Black Alder is a European tree whose bark and leaves have a long history in folk medicine, mainly as an astringent gargle or wound wash. There is very...
Black Alder (Alnus glutinosa) bud extract monograph & interactionsSilver Birch (Betula pendula) bud extract
Dog Rose (Rosa canina) young shoot extract
Interacts with213 drugs
Rose hip is the vitamin C–rich fruit of the wild rose, used traditionally for colds and joint pain. A standardized rose hip powder has some research s...
Dog Rose (Rosa canina) young shoot extract monograph & interactionsOther (inactive) ingredients: Purified Water, Ethanol, Glycerin. These complete the product’s ingredient list but are not active constituents.
Phyto-Gen Defense-gen by Genestra Brands Drug Interactions
HelloPharmacist Interaction Report
Phyto-Gen Defense-gen by Genestra Brands contains three plant extracts, and two of them — black alder and dog rose — carry documented interactions with medications.
The most serious concern is with chemotherapy drugs: black alder may reduce how well cisplatin and doxorubicin work against cancer, a Moderate-severity risk that hasn't been tested in people yet.
Read the full breakdown — every affected drug type, severity by severity
Dog rose interacts with a broader range of drug types. It may increase estrogen levels if you're on birth control or hormone therapy (Moderate), theoretically reduce the effect of blood thinners like warfarin or other anticoagulants (Moderate), and raise lithium levels in your blood if you take it for bipolar disorder (Moderate).
It also carries Moderate concerns with chemotherapy drugs — both alkylating agents and antitumor antibiotics — because its vitamin C content may interfere with how they work. For aspirin and warfarin specifically, the vitamin C in dog rose is likely too low to cause real problems (Minor).
We couldn't check silver birch because we hold no interaction data for it. Altogether, these interactions span 213 individual medications.
Before you start this product, check your exact medications — especially if you take chemotherapy, hormone therapy, blood thinners, lithium, or aluminum supplements — with your doctor or pharmacist.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Phyto-Gen Defense-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 Defense-gen interact with 213 drugs. Click any drug to see the details.
2 of the 3 ingredients in Phyto-Gen Defense-gen interact with drugs. Each result below shows which ingredient is responsible. Dog Rose (Rosa canina) young shoot extract Black Alder (Alnus glutinosa) bud extract
AbciximabReoPro
How Abciximab interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Abrocitinib interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Acetaminophen, Ibuprofen interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Acetylsalicylic Acid interactionAlginic Acid, Aluminum HydroxideRafton
How Alginic Acid, Aluminum Hydroxide interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Alginic Acid, Aluminum Hydroxide interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Alteplase, Tpa interactionAltretamineHexalen
How Altretamine interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of rose hip might reduce the effectiveness of alkylating agents but might also reduce the oxidative damage caused by certain alkylating agents.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Altretamine interactionAluminum Acetate, Benzethonium ChlorideBuro-Sol Otic Solution
How Aluminum Acetate, Benzethonium Chloride interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Acetate, Benzethonium Chloride interactionAluminum ChlorideAluminum Chloride, Anhydrol Forte, Driclor, Drysol
How Aluminum Chloride interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Chloride interactionAluminum HydroxideAlu-Cap, Amphojel, Gaviscon
How Aluminum Hydroxide interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Hydroxide interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum, Anticoagulant/antiplatelet Drugs +1 Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin +1 Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAluminum Hydroxide, Magnesium Hydroxide (otc Drug)Maalox, Mucogel
How Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interactionAluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug)Mylanta
How Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interactionAluminum, CalciumDomeboro
How Aluminum, Calcium interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum, Calcium interactionAluminum, Magnesium (otc Drug)Almagel
How Aluminum, Magnesium (otc Drug) interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum, Magnesium (otc Drug) interactionAluminum, Magnesium Hydroxide (otc Drug)Wingel
How Aluminum, Magnesium Hydroxide (otc Drug) interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAluminum Moderate
Interaction Summary
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aluminum, Magnesium Hydroxide (otc Drug) interactionAnacaulase-bcdbNexoBrid
How Anacaulase-bcdb interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Anacaulase-bcdb interactionAnagrelideAgrylin
How Anagrelide interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Anagrelide interactionAnisindioneMiradon
How Anisindione interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Anisindione interactionAntithrombin IiiThrombate III
How Antithrombin Iii interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Antithrombin Iii interactionApixabanEliquis
How Apixaban interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Apixaban interactionArgatrobanArgatroban
How Argatroban interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Argatroban interactionAspirinAngettes 75, ASA, Asaphen, Aspirin, Caprin, Cartia +8 more
How Aspirin interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aspirin interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin +1 Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAspirin, ButalbitalAxotal
How Aspirin, Butalbital interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aspirin, Butalbital interactionAspirin, Butalbital, CaffeineFiorinal
How Aspirin, Butalbital, Caffeine interacts with Phyto-Gen Defense-gen — through 1 ingredient. Tap an ingredient for the detail:
Dog Rose (rosa Canina) Young Shoot ExtractAnticoagulant/antiplatelet Drugs, Aspirin Moderate
Interaction Summary
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
Read the full Dog Rose (rosa Canina) Young Shoot Extract + Aspirin, Butalbital, Caffeine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Phyto-Gen Defense-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.
Dog Rose (Rosa canina) young shoot extract
Alkylating Agents
Theoretically, the antioxidant effects of rose hip might reduce the effectiveness of alkylating agents but might also reduce the oxidative damage caused by certain alkylating agents.
Rose hip contains vitamin C. The use of antioxidants like vitamin C during chemotherapy is controversial. There is concern that antioxidants could reduce the activity of chemotherapy drugs that generate free radicals, such as cyclophosphamide, chlorambucil, carmustine, busulfan, and thiotepa. In contrast, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells. Further, some animal research suggests that the antioxidant effects of rose hip might attenuate cyclophosphamide-induced testicular toxicity. More evidence is needed to determine what effect, if any, antioxidants found in rose hip, such as vitamin C, have on the effectiveness and adverse effects of chemotherapy.
Aluminum
Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
Rose hip contains vitamin C. Theoretically, vitamin C increases the absorption of aluminum. Concomitant use might increase aluminum absorption, but the clinical significance of this is unknown. Administer rose hip two hours before or four hours after antacids.
Anticoagulant/Antiplatelet Drugs
Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that a constituent of rose hip, rugosin E, can induce platelet aggregation. This has not been shown in humans. Theoretically, concomitant use of rose hip might reduce the effectiveness of antiplatelet or anticoagulant drugs.
Antitumor Antibiotics
Theoretically, the antioxidant effects of rose hip might reduce the effectiveness of antitumor antibiotics.
Rose hip contains the antioxidant vitamin C. There is concern that antioxidants might reduce the activity of chemotherapy drugs that generate free radicals, such as antitumor antibiotics. In contrast, other researchers theorize that antioxidants might make antitumor antibiotic chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effects, if any, antioxidants such as vitamin C have on antitumor antibiotic chemotherapy.
Estrogens
Theoretically, rose hip might increase blood levels of estrogens.
Rose hip contains vitamin C. Increases in plasma estrogen levels of up to 55% have occured under some circumstances when vitamin C is taken concurrently with oral contraceptives or hormone replacement therapy, including topical products. It is suggested that vitamin C prevents oxidation of estrogen in the tissues, regenerates oxidized estrogen, and reduces sulfate conjugation of estrogen in the gut wall. When tissue levels of vitamin C are high, these processes are already maximized and supplemental vitamin C does not have any effect on estrogen levels. However, increases in plasma estrogen levels may occur when women who are deficient in vitamin C take supplements.
Lithium
Theoretically, rose hip might increase blood levels of lithium.
Rose hip is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, rose hip might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.
Aspirin
Theoretically, rose hip might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Rose hip contains vitamin C. It has been suggested that acidification of the urine by vitamin C can decrease the urinary excretion of salicylates, increasing plasma salicylate levels. However, short-term use of up to 6 grams daily of vitamin C does not seem to affect urinary pH or salicylate excretion. The vitamin C content of rose hip is typically about 500 mg per 100 grams. Thus, a clinically significant interaction between rose hip and aspirin is unlikely.
Warfarin (Coumadin)
Theoretically, rose hip might reduce the effectiveness of warfarin; however, its vitamin C content is likely too low to produce clinically significant effects.
Rose hip contains vitamin C. High doses of vitamin C may reduce the response to warfarin, possibly by causing diarrhea and reducing warfarin absorption. This occurred in two people who took up to 16 grams daily of vitamin C, and resulted in decreased prothrombin time. Lower doses of 5-10 grams daily of vitamin C can also reduce warfarin absorption, but this does not seem to be clinically significant. The vitamin C content of rose hip is typically about 500 mg per 100 grams. Thus, a clinically significant interaction between rose hip and warfarin is unlikely.
Black Alder (Alnus glutinosa) bud extract
Cisplatin (Platinol-Aq)
Laboratory research shows that black alder bark extracts can antagonize the chemotherapeutic effects of cisplatin. This interaction has not been evaluated in humans. Until more is known, use this combination with caution.
Doxorubicin (Adriamycin, Others)
Laboratory research shows that black alder bark extracts can antagonize the chemotherapeutic effects of doxorubicin. This interaction has not been evaluated in humans. Until more is known, use this combination with caution.
Brand information
Manufacturer and brand details for Phyto-Gen Defense-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 Defense-gen by Genestra Brands: Common Questions
Does Phyto-Gen Defense-gen by Genestra Brands interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is this safe during pregnancy or while breastfeeding?
What side effects might I notice?
Does dog rose actually work for arthritis?
What am I actually taking in this liquid?
Why can't you check silver birch for interactions?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Phyto-Gen Defense-gen’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Black Alder
Interacts with 2 drugsBlack Alder is a European tree whose bark and leaves have a long history in folk medicine, mainly as an astringent gargle or wound wash. There is very little modern human research to confirm...
Read the full Black Alder monograph → Herb & supplement monographRose Hip
Interacts with 213 drugsRose hip is the vitamin C–rich fruit of the wild rose, used traditionally for colds and joint pain. A standardized rose hip powder has some research support for easing osteoarthritis symptom...
Read the full Rose Hip monograph →Sources & How We Checked
Phyto-Gen Defense-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 25 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 Alder 1 reference
- Dinic J, Novakovic M, Podolski-Renic A, et al. Antioxidative activity of diarylheptanoids from the bark of black alder (Alnus glutinosa) and their interaction with anticancer drugs. Planta Med 2014;80(13):1088-96. doi: 10.1055/s-0034-1382993. Epub 2014 Au PubMed
Rose Hip 24 references
- Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
- Back DJ, Breckenridge AM, MacIver M, et al. Interaction of ethinyloestradiol with ascorbic acid in man. Br Med J (Clin Res Ed) 1981;282:1516.
- Morris JC, Beeley L, Ballantine N. Interaction of ethinyloestradiol with ascorbic acid in man [letter]. Br Med J (Clin Res Ed) 1981;283:503.
- Labriola D, Livingston R. Possible interactions between dietary antioxidants and chemotherapy. Oncology 1999;13:1003-8.
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington, DC: National Academy Press, 2000. Available at: http://www.nap.edu/books/0309069351/html/.
- Rosenthal G. Interaction of ascorbic acid and warfarin. JAMA 1971;215:1671. DOI
- Hume R, Johnstone JM, Weyers E. Interaction of ascorbic acid and warfarin. JAMA 1972;219:1479. DOI
- Smith EC, Skalski RJ, Johnson GC, Rossi GV. Interaction of ascorbic acid and warfarin. JAMA 1972;221:1166. DOI
- Mc Leod DC, Nahata MC. Inefficacy of ascorbic acid as a urinary acidifier (letter). N Engl J Med 1977;296:1413. DOI
- Hansten PD, Hayton WL. Effect of antacid and ascorbic acid on serum salicylate concentration. J Clin Pharmacol 1980;20:326-31. PubMed
- Vihtamaki T, Parantainen J, Koivisto AM, et al. Oral ascorbic acid increases plasma oestradiol during postmenopausal hormone replacement therapy. Maturitas 2002;42:129-35. PubMed
- Feetam CL, Leach RH, Meynell MJ. Lack of a clinically important interaction between warfarin and ascorbic acid. Toxicol Appl Pharmacol 1975;31:544-7. PubMed
- Weintraub M, Griner PF. Warfarin and ascorbic acid: lack of evidence for a drug interaction. Toxicol Appl Pharmacol 1974;28:53-6. PubMed
- Prasad KN. Rationale for using high-dose multiple dietary antioxidants as an adjunct to radiation therapy and chemotherapy. J Nutr 2004;134:3182S-3S. PubMed
- Conklin KA. Cancer chemotherapy and antioxidants. J Nutr 2004;134:3201S-3204S. PubMed
- Andersson U, Berger K, Hogberg A, et al. Effects of rose hip intake on risk markers of type 2 diabetes and cardiovascular disease: a randomized, double-blind, cross-over investigation in obese persons. Eur J Clin Nutr 2012;66:585-90. PubMed
- Rein, E., Kharazmi, A., and Winther, K. A herbal remedy, Hyben Vital (stand. powder of a subspecies of Rosa canina fruits), reduces pain and improves general wellbeing in patients with osteoarthritis--a double-blind, placebo-controlled, randomised trial. PubMed
- Winther, K., Apel, K., and Thamsborg, G. A powder made from seeds and shells of a rose-hip subspecies (Rosa canina) reduces symptoms of knee and hip osteoarthritis: a randomized, double-blind, placebo-controlled clinical trial. Scand J Rheumatol. 2005;34
- Teng, C. M., Kang, Y. F., Chang, Y. L., Ko, F. N., Yang, S. C., and Hsu, F. L. ADP-mimicking platelet aggregation caused by rugosin E, an ellagitannin isolated from Rosa rugosa Thunb. Thromb.Haemost. 1997;77(3):555-561. DOI
- Seifi M, Abbasalizadeh S, Mohammad-Alizadeh-Charandabi S, Khodaie L, Mirghafourvand M. The effect of Rosa (L. Rosa canina) on the incidence of urinary tract infection in the puerperium: a randomized placebo-controlled trial. Phytother Res 2018;32(1):76-83
- Parandin R, Ghowsi M, Dadbod A. Protective effects of hydroalcoholic extract of Rosa canina L. fruit on cyclophosphamide-induced testicular toxicity in mice. Avicenna J Phytomed 2023;13(1):7-17.
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
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