Vir-U-Sure Ingredients & Drug Interactions
by Purium
What is this page for?
First and foremost: checking Vir-U-Sure 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
Vir-U-Sure is a dietary supplement by Purium with 5 active ingredients. Its ingredients are commonly taken for general nutrition and energy, antioxidant support, cholesterol and metabolic health.Based on those ingredients, 1,072 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Neem leaf extract, Spirulina. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Vir-U-Sure by Purium
Ask about any prescription or over-the-counter medication and we check it for interactions with Vir-U-Sure by Purium — 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 Vir-U-Sure by Purium
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
Partial disclosure
Vir-U-Sure contains 5 ingredients, most of them bundled in a proprietary blend. The named actives are spirulina (a blue-green algae used as a nutritional supplement), olive leaf extract, neem leaf extract, and two types of red algae — gigartina and dumontiaceae — whose roles aren't detailed in our data.
The product also contains cellulose, an inactive ingredient used as a capsule filler.
Does it work?
Not established
The evidence for spirulina suggests it may be effective for high blood pressure, though the data is preliminary. For acne, hay fever, iron deficiency anemia, and arsenic poisoning, the evidence is too weak to rate.
Neem leaf extract appears possibly effective for gingivitis, dental plaque, and lice, but insufficient evidence exists for acne. Olive leaf extract has insufficient evidence for the six conditions listed — osteoporosis, indigestion, exercise-induced respiratory infections, shingles, flu, and osteoarthritis — meaning we don't know yet if it works for those uses.
The red algae ingredients have no effectiveness data on file.
How safe is it?
Well-documented data
Spirulina is generally well tolerated when taken by mouth, though a small number of people report abdominal cramps, bloating, diarrhea, dizziness, fatigue, gas, headache, nausea, or vomiting. Rare allergic reactions including anaphylaxis (a severe, whole-body reaction) and mild gum bleeding or bruising have been reported.
A major caution: quality varies widely, and some spirulina products are contaminated with toxins or heavy metals. Neem leaf extract seems well tolerated in adults but carries a rare risk of serious heart and kidney problems; in children, neem oil can cause severe harm.
Olive leaf extract is generally well tolerated, with headache and stomach discomfort reported occasionally; olive tree pollen may trigger seasonal allergies in sensitive people. We have no pregnancy or breastfeeding data on file for any ingredient.
Meds to double-check
Moderate interaction found
Before taking Vir-U-Sure, double-check with us or your doctor if you're on diabetes medications (risk of low blood sugar), blood thinners or antiplatelet drugs, immunosuppressants, or any medications broken down by liver enzymes — especially those involving CYP3A4, CYP2C9, CYP2C8, CYP1A2, or P-glycoprotein pathways.
The bottom line
Scorecard at a glancePartially disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
Vir-U-Sure is best avoided if you take diabetes medications or blood thinners without checking first. People on immunosuppressants or drugs metabolized by your liver should talk to their pharmacist before starting it.
The biggest safety red flag is contamination risk with spirulina and limited safety data overall, especially in pregnancy. Run your medication list through the checker below.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 25, 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 Vir-U-Sure, straight from the product label.
| Brand | Purium |
|---|---|
| Barcode (UPC) | 764934025101 |
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jul 25, 2024 |
| DSLD ID | 313766 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free |
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 Vir-U-Sure by Purium, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Proprietary Blend | 600 mg | -- |
| Spirulina | 300 mg | -- |
| Olive Leaf Extract | 200 mg | -- |
| Neem leaf extract | 200 mg | -- |
| Red Algae Gigartina | 0 NP | -- |
| Red Algae Dumontiaceae | 0 NP | -- |
Other ingredients: Cellulose
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
Herbal immune support
Vegan & Gluten-free
Vegan & Gluten-free
FDA Statement of Identity
Dietary Supplement
General Statements
The Transformation Company Peel back for more info
Pure + Premium= Purium Co-founders Amy Venner and Dave Sandoval are passionate about making the world a better place. With over 60 years combined experience, they provide the highest quality superfood nutrition while practicing commerce with a conscience and serving their community. Their dedication safeguards Purium's commitment to provide pure and premium superfoods; grown, manufactured and tested to the highest standards. From farm to family, Purium delivers the finest nutrition with the lowest possible environmental impact. The quality of food you eat is equal to the quality of life you live.
Learn more about Purium Compostable Materials meet ASTM D6400 standards. Committed to freeing our planet from plastic pollution!
Suggested/Recommended/Usage/Directions
Suggested Use: Take 2 capsules up to three times a day as needed for immune support. Can be taken with or without food.
Precautions
Caution: Keep out of reach of children.
If you have a medical condition, are pregnant, lactating or taking medication, consult your health care professional before using this or any other nutritional supplement.
Storage
Store in a cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Vir-U-Sure by Purium 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 Vir-U-Sure by Purium
These are the 5 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.
Proprietary Blend
- › Red Algae Gigartina
- › Red Algae Dumontiaceae
Spirulina
Interacts with327 drugs
Blue-green algae are nutrient-rich aquatic microorganisms (such as spirulina and Klamath Lake algae) taken as a supplement for energy, nutrition, and...
Spirulina monograph & interactionsOlive Leaf Extract
No knowninteractions
Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyr...
Olive Leaf Extract monograph & interactionsNeem leaf extract
Interacts with1,013 drugs
Neem is a tree from India used for centuries in traditional medicine, especially for skin, dental, and antimicrobial purposes. Some small studies are...
Neem leaf extract monograph & interactionsOther (inactive) ingredients: Cellulose. These complete the product’s ingredient list but are not active constituents.
Vir-U-Sure by Purium Drug Interactions
HelloPharmacist Interaction Report
Vir-U-Sure by Purium contains several ingredients with documented interactions with medications.
The most serious concern involves neem leaf extract, which theoretically may increase blood sugar dips if you're taking diabetes medications — it appears to lower blood glucose on its own, and the interaction is rated Moderate severity.
Read the full breakdown — every affected drug type, severity by severity
Neem leaf extract also interacts with multiple drug-metabolizing enzymes in your liver and kidneys (CYP1A2, CYP2C8, CYP2C9, CYP3A4 substrates, and P-glycoprotein substrates), all rated Moderate. In theory, it could raise the levels of drugs broken down by these pathways, though human cases haven't been reported yet.
Neem may also interfere with immunosuppressant medications.
Spirulina (a blue-green algae) carries Moderate interactions with blood thinners and antiplatelet drugs — though the risk is considered unlikely — as well as immunosuppressants and diabetes medications, for similar reasons as neem.
Olive leaf extract has been checked and no interactions are documented in our data. We could not check red algae gigartina or red algae dumontiaceae.
Altogether, these interactions span 1,053 individual medications. Before starting Vir-U-Sure, use the medication checker on this page to look up your exact prescriptions.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Vir-U-Sure?
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 Vir-U-Sure interact with 1,072 drugs. Click any drug to see the details.
2 of the 5 ingredients in Vir-U-Sure interact with drugs. Each result below shows which ingredient is responsible. Neem leaf extract Spirulina
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Vir-U-Sure — through 2 ingredients. Tap an ingredient for the detail:
SpirulinaImmunosuppressants Moderate
Interaction Summary
Theoretically, concurrent use of blue-green algae might interfere with immunosuppressive therapy.
Read the full Spirulina + 6-mercaptopurine interactionNeem Leaf ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, neem might decrease the effectiveness of immunosuppressants.
Read the full Neem Leaf Extract + 6-mercaptopurine interactionAdo-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
SpirulinaAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs.
Read the full Spirulina + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Vir-U-Sure — through 2 ingredients. Tap an ingredient for the detail:
SpirulinaAnticoagulant/antiplatelet Drugs, Immunosuppressants Moderate
Interaction Summary
Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs.
Read the full Spirulina + Abrocitinib interactionNeem Leaf ExtractImmunosuppressants, Cytochrome P450 2c9 (cyp2c9) Substrates Moderate
Interaction Summary
Theoretically, neem might decrease the effectiveness of immunosuppressants.
Read the full Neem Leaf Extract + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates, P-glycoprotein Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Acalabrutinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Vir-U-Sure — through 2 ingredients. Tap an ingredient for the detail:
Neem Leaf ExtractAntidiabetes Drugs Moderate
Interaction Summary
Neem might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Neem Leaf Extract + Acarbose interactionSpirulinaAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking blue-green algae with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Spirulina + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
SpirulinaAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs.
Read the full Spirulina + Acenocoumarol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Vir-U-Sure — through 2 ingredients. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Aspirin interactionSpirulinaAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs.
Read the full Spirulina + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Vir-U-Sure — through 2 ingredients. Tap an ingredient for the detail:
SpirulinaAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs.
Read the full Spirulina + Acetaminophen, Aspirin, Caffeine interactionNeem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf 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 Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Vir-U-Sure — through 1 ingredient. Tap an ingredient for the detail:
Neem Leaf ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem Leaf Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Vir-U-Sure 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.
Neem leaf extract
Antidiabetes Drugs
Neem might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Some clinical research shows that neem can lower blood glucose levels in adults with type 2 diabetes, including those already taking metformin.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that neem leaf extract inhibits CYP1A2 enzymes. So far, this reaction has not been reported in humans.
Cytochrome P450 2C8 (Cyp2C8) Substrates
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP2C8 substrates.
In vitro research shows that neem leaf methanol extract inhibits CYP2C8 enzymes. So far, this reaction has not been reported in humans.
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP2C9 substrates.
In vitro research shows that neem leaf methanol extract inhibits CYP2C9 enzymes. So far, this reaction has not been reported in humans.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that neem leaf methanol extract inhibits CYP3A4 enzymes. So far, this reaction has not been reported in humans.
Immunosuppressants
Theoretically, neem might decrease the effectiveness of immunosuppressants.
Animal research suggests that neem might have immunostimulant effects.
P-Glycoprotein Substrates
Theoretically, neem leaf extract might increase the levels and clinical effects of P-glycoprotein substrates.
In vitro research shows that neem leaf methanol extract inhibits renal P-glycoprotein transport activity. So far, this reaction has not been reported in humans.
Spirulina
Anticoagulant/Antiplatelet Drugs
Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs. However, this is unlikely.
Spirulina blue-green algae have shown antiplatelet and anticoagulant effects in vitro. However, one preliminary study in 24 patients receiving spirulina blue-green algae 2.3 grams daily for 2 weeks showed no effect on platelet activation or measures of clotting time.
Antidiabetes Drugs
Theoretically, taking blue-green algae with antidiabetes drugs might increase the risk of hypoglycemia.
Human research shows that spirulina blue-green algae can have hypoglycemic effects in patients with diabetes, at least some of whom were using antidiabetes drugs. However, blue-green algae does not seem to improve glycated hemoglobin (HbA1c) levels in patients with diabetes. A meta-analysis of animal studies also suggests that spirulina blue-green algae have hypoglycemic effects.
Immunosuppressants
Theoretically, concurrent use of blue-green algae might interfere with immunosuppressive therapy.
Blue-green algae have been shown to stimulate the immune system.
Brand information
Manufacturer and brand details for Vir-U-Sure, from the product label.
Purium
See all Purium products- Name
- Purium
- Street Address
- 2610 Homestead Pl.
- City
- Rancho Dominiguez
- State
- CA
- ZipCode
- 90220
- Phone Number
- 1.888.747.6733
- Web Address
- ishoppurium.com
Vir-U-Sure by Purium: Common Questions
Does Vir-U-Sure by Purium interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
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Is Vir-U-Sure safe to take during pregnancy?
What is neem leaf extract used for in this formula?
I'm on a blood thinner. Can I take this?
Are there any common side effects from spirulina?
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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 Vir-U-Sure’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Blue-green Algae
Interacts with 327 drugsBlue-green algae are nutrient-rich aquatic microorganisms (such as spirulina and Klamath Lake algae) taken as a supplement for energy, nutrition, and general wellness. Evidence for most heal...
Read the full Blue-green Algae monograph → Herb & supplement monographOlive
Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyrosol. Olive oil as part of a Mediterrane...
Read the full Olive monograph → Herb & supplement monographNeem
Interacts with 1,013 drugsNeem is a tree from India used for centuries in traditional medicine, especially for skin, dental, and antimicrobial purposes. Some small studies are promising for oral health and skin, but...
Read the full Neem monograph →Sources & How We Checked
Vir-U-Sure'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 52 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.
Blue-green Algae 22 references
- Jensen GS, Ginsberg DJ, Huerta P, et al. Consumption of Aphanizomenon flos-aquae has rapid effects on the circulation and function of immune cells in humans. A novel approach to nutritional mobilization of the immune system. JANA 2000;2:50-6.
- Iwasa M, Yamamoto M, Tanaka Y, et al. Spirulina-associated hepatotoxicity. Am J Gastroenterol 2002;97:3212-13. PubMed
- Hayashi O, Katoh T, Okuwaki Y. Enhancement of antibody production in mice by dietary Spirulina platensis. J Nutr Sci Vitaminol (Tokyo) 1994;40:431-41.. PubMed
- Vitale S, Miller NR, Mejico LJ, et al. A randomized, placebo-controlled, crossover clinical trial of super blue-green algae in patients with essential blepharospasm or Meige syndrome. Am J Ophthalmol 2004;138:18-32. PubMed
- Mani UV, Desai S, Iyer U. Studies on the long-term effect of spirulina supplementation on serum lipid profile and glycated proteins in NIDDM patients. J Nutraceut 2000;2(3):25-32. DOI
- Chiu HF, Yang SP, Kuo YL, et al. Mechanisms involved in the antiplatelet effect of C-phycocyanin. Br J Nutr 2006;95:435-40. PubMed
- Hsiao G, Chou PH, Shen MY, et al. C-phycocyanin, a very potent and novel platelet aggregation inhibitor from Spirulina platensis. J Agric Food Chem 2005;53:7734-40.
- Katz M, Levine AA, Kol-Degani H, Kav-Venaki L. A compound herbal preparation (CHP) in the treatment of children with ADHD: a randomized controlled trial. J Atten Disord 2010;14:281-91. PubMed
- Madhyastha, H. K., Radha, K. S., Sugiki, M., Omura, S., and Maruyama, M. Purification of c-phycocyanin from Spirulina fusiformis and its effect on the induction of urokinase-type plasminogen activator from calf pulmonary endothelial cells. Phytomedicine PubMed
- Mazokopakis, E. E., Karefilakis, C. M., Tsartsalis, A. N., Milkas, A. N., and Ganotakis, E. S. Acute rhabdomyolysis caused by Spirulina (Arthrospira platensis). Phytomedicine. 2008;15(6-7):525-527. PubMed
- Halidou, Doudou M., Degbey, H., Daouda, H., Leveque, A., Donnen, P., Hennart, P., and Dramaix-Wilmet, M. [The effect of spiruline during nutritional rehabilitation: systematic review]. Rev.Epidemiol.Sante Publique 2008;56(6):425-431.
- Konno, T., Umeda, Y., Umeda, M., Kawachi, I., Oyake, M., and Fujita, N. [A case of inflammatory myopathy with widely skin rash following use of supplements containing Spirulina]. Rinsho Shinkeigaku 2011;51(5):330-333. PubMed
- Le TM, Knulst AC, Röckmann H. Anaphylaxis to Spirulina confirmed by skin prick test with ingredients of Spirulina tablets. Food Chem Toxicol 2014;74:309-10. PubMed
- Rzymski P, Niedzielski P, Kaczmarek N, Jurczak T, Klimaszyk P. The multidisciplinary approach to safety and toxicity assessment of microalgae-based food supplements following clinical cases of poisoning. Harmful Algae 2015;46:34-42. DOI
- Petrus M, Culerrier R, Campistron M, et al. First case report of anaphylaxis to spirulin: identification of phycocyanin as responsible allergen. Allergy 2010;65(7):924-5. PubMed
- Marles RJ, Barrett ML, Barnes J, et al. United States Pharmacopeia safety evaluation of spirulina. Crit Rev Food Sci Nutr 2011;51(7):593-604. PubMed
- Majdoub H, Ben Mansour M, Chaubet F, et al. Anticoagulant activity of a sulfated polysaccharide from the green alga Arthrospira platensis. Biochim Biophys Acta 2009;1790(10):1377-81. PubMed
- Cha BG, Kwak HW, Park AR, et al. Structural characteristics and biological performance of silk fibroin nanofiber containing microalgae spirulina extract. Biopolymers 2014;101(4):307-18. PubMed
- Jensen GS, Drapeau C, Lenninger M, Benson KF. Clinical safety of a high dose of phycocyanin-enriched aqueous extract from Arthrospira (Spirulina) platensis: results from a randomized, double-Blind, placebo-controlled study with a focus on anticoagulant ac
- Hamedifard Z, Milajerdi A, Reiner Z, Taghizadeh M, Kolahdooz F, Asemi Z. The effects of spirulina on glycemic control and serum lipoproteins in patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized con
- Moradi S, Zobeiri M, Feizi A, Clark CCT, Entezari MH. The effects of spirulina (Arthrospira platensis) supplementation on anthropometric indices, blood pressure, sleep quality, mental health, fatigue status and quality of life in patients with ulcerative
- Ghanbari F, Amerizadeh A, Behshood P, Moradi S, Asgary S. Effect of microalgae arthrospira on biomarkers of glycemic control and glucose metabolism: a systematic Review and meta-analysis. Curr Probl Cardiol 2022;47(10):100942. PubMed
Olive 2 references
- Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch Allergy Immunol 1996;111:210-7. PubMed
- Somerville V, Moore R, Braakhuis A. The effect of olive leaf extract on upper respiratory illness in high school athletes: A randomised control trial. Nutrients. 2019;11(2). pii: E358. PubMed
Neem 28 references
- Sinniah D, Baskaran G. Margosa oil poisoning as a cause of Reye's syndrome. Lancet 1981;1:487-9. PubMed
- Sinniah D, Baskaran G, Looi LM, Leong KL. Reye-like syndrome due to margosa oil poisoning: report of a case with postmortem findings. Am J Gastroenterol 1982;77:158-61.
- Sinniah R, Sinniah D, Chia LS, Baskaran G. Animal model of margosa oil ingestion with Reye-like syndrome. Pathogenesis of microvesicular fatty liver. J Pathol 1989;159:255-64. PubMed
- Lai SM, Lim KW, Cheng HK. Margosa oil poisoning as a cause of toxic encephalopathy. Singapore Med J 1990;31:463-5.
- Biswas K, Chattopadhyay I, Banerjee RK, Bandyopadhyay U. Biological activities and medicinal properties of neem (Azadirachta indica). Curr Sci 2002;82:1336-45.
- Upadhyay SN, Dhawan S, Garg S, Talwar GP. Immunomodulatory effects of neem (Azadirachta indica) oil. Int J Immunopharmacol 1992;14:1187-93. PubMed
- Ibrahim IA, Khalid SA, Omer SA, Adam SE. On the toxicology of Azadirachta indica leaves. J Ethnopharmacol 1992;35:267-73. PubMed
- Ali BH. Toxicology of Azadirachta indica. J Ethnopharmacol 1994;42:71-2. PubMed
- Boeke SJ, Boersma MG, Alink GM, et al. Safety evaluation of neem (Azadirachta indica) derived pesticides. J Ethnopharmacol 2004;94:25-41. PubMed
- Abdel-Ghaffar, F. and Semmler, M. Efficacy of neem seed extract shampoo on head lice of naturally infected humans in Egypt. Parasitol.Res 2007;100(2):329-332. PubMed
- Reutemann, P. and Ehrlich, A. Neem oil: an herbal therapy for alopecia causes dermatitis. Dermatitis 2008;19(3):E12-E15.
- Senanayake, M. P., Rupasinghe, S., and Dissanayake, P. V. Margosa (Kohomba) oil induced toxic encephalopathy following home remedy for intestinal worms. Ceylon Med.J 2009;54(4):140. PubMed
- Bhaskar, M. V., Pramod, S. J., Jeevika, M. U., Chandan, P. K., and Shetteppa, G. MR imaging findings of neem oil poisoning. AJNR Am J Neuroradiol. 2010;31(7):E60-E61.
- Iyyadurai, R., Surekha, V., Sathyendra, S., Paul, Wilson B., and Gopinath, K. G. Azadirachtin poisoning: a case report. Clin Toxicol.(Phila) 2010;48(8):857-858. PubMed
- Sinniah, D., Sinniah, R., Baskaran, G., Pathmanathan, R., Yamashita, F., and Yoshino, M. Evaluation of the possible role of glucose, carnitine, coenzyme Q10 and steroids in the treatment of Reye's syndrome using the margosa oil animal model. Acta Paediat PubMed
- Balakrishnan, V., Pillai, N. R., and Santhakumari, G. Ventricular fibrillation and cardiac arrest due to neem leaf poisoning. J.Assoc.Physicians India 1986;34(7):536.
- Sivashanmugham, R., Bhaskar, N., and Banumathi, N. Ventricular fibrillation and cardiac arrest due to neem leaf poisoning. J.Assoc.Physicians India 1984;32(7):610-611.
- Mukherjee, S. and Talwar, G. P. Termination of pregnancy in rodents by oral administration of praneem, a purified neem seed extract. Am J Reprod.Immunol. 1996;35(1):51-56. PubMed
- Talwar, G. P., Pal, R., Singh, O., Garg, S., Taluja, V., Upadhyay, S. N., Gopalan, S., Jain, V., Kaur, J., and Sehgal, S. Safety of intrauterine administration of purified neem seed oil (Praneem Vilci) in women & effect of its co-administration with the
- Talwar, G. P., Shah, S., Mukherjee, S., and Chabra, R. Induced termination of pregnancy by purified extracts of Azadirachta Indica (Neem): mechanisms involved. Am J Reprod.Immunol. 1997;37(6):485-491. PubMed
- Greenblatt DT, Banerjee P, White JM. Allergic contact dermatitis caused by neem oil. Contact Dermatitis. 2012;67(4):242-3. PubMed
- Page C, Hawes EM. Haemolytic anaemia after ingestion of Neem (Azadirachta indica) tea. BMJ Case Rep. 2013. pii: bcr2013200890.
- Braidy N, Berg J, Clement J, et al. Role of nicotinamide dinucleotide and related precursors as therapeutic targets for age-related degenerative diseases: rationale, biochemistry, pharmacokinetics, and outcomes. Antiox Redox Signal 2018.
- Jadhav PB. Leucoderma on the lips induced by neem (Azadirachta indica): case series. Clin Exp Dermatol. 2018;43(8):943-6.
- Giuggioli D, Lumetti F, Spinella A, et al. Use of Neem oil and Hypericum perforatum for treatment of calcinosis-related skin ulcers in systemic sclerosis. J Int Med Res 2019:300060519882176. Online ahead of print.
- Pingali U, Ali MA, Gundagani S, Nutalapati C. Evaluation of the effect of an aqueous extract of Azadirachta indica (neem) leaves and twigs on glycemic control, endothelial dysfunction and systemic inflammation in subjects with type 2 diabetes mellitus - a
- Amaeze O, Marques ES, Wei W, et al. Evaluation of Nigerian Medicinal Plants Extract on Human P-glycoprotein and Cytochrome P450 Enzyme Induction: Implications for Herb-drug Interaction. Curr Drug Metab. 2021;22(14):1103-1113. PubMed
- Amaeze O, Eng H, Horlbogen L, Varma MVS, Slitt A. Cytochrome P450 Enzyme Inhibition and Herb-Drug Interaction Potential of Medicinal Plant Extracts Used for Management of Diabetes in Nigeria. Eur J Drug Metab Pharmacokinet. 2021;46(3):437-450. 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