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Dietary supplement

Vitamin A Ingredients & Drug Interactions

by Genestra Brands

Vitamin A label
See full label image
Softgel Capsule Category: Vitamin
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Vitamin A 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

The interaction bottom line Most serious interaction: Major

Vitamin A is a dietary supplement by Genestra Brands with 1 active ingredient. Its ingredients are commonly taken for eye and vision health, skin health and acne, immune support.Based on those ingredients, 387 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin A. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Vitamin A by Genestra Brands

Ask about any prescription or over-the-counter medication and we check it for interactions with Vitamin A by Genestra Brands — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Vitamin A 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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Genestra Brands Vitamin A contains one active ingredient: vitamin A. The softgel capsule also holds soybean oil, bovine gelatin, glycerin, and purified water as inactive ingredients.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Vitamin A supplement.
  • We looked for evidence on: Vitamin A deficiency, Night vision, Acne, Aging skin, Wrinkled skin, Atopic dermatitis (eczema) — and 4 related terms.
  • The strongest evidence on file: Vitamin A is rated "Effective" for Vitamin A deficiency (Natural Medicines).
  • Also on file: Vitamin A is rated "Possibly Effective" for Aging skin, Measles, Night vision, Wrinkled skin.
  • Also on file: Vitamin A is rated "Insufficient Reliable Evidence To Rate" for Acne, Atopic dermatitis (eczema).

Vitamin A is effective for preventing and treating vitamin A deficiency. The evidence also supports its use as possibly effective for oral leukoplakia (precancerous white patches in the mouth), aging skin, measles, ulcerative colitis, and bronchopulmonary dysplasia (a lung condition in premature infants).

The evidence, ingredient by ingredient Vitamin A

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Vitamin A is generally well-tolerated at recommended amounts, but it builds up in your body over time, so high doses can become toxic. In very rare cases, extremely high doses have caused headaches, blurred vision, liver damage, and in children pseudotumor cerebri (increased pressure inside the skull).

Chronic use of large amounts causes dry, cracked, itchy skin, hair loss, and brittle nails. During pregnancy and lactation, the safety picture is mixed: normal dietary amounts and recommended supplements are safe, but high-dose vitamin A supplements (especially as retinol) carry a risk of birth defects and should be avoided unless your doctor directs otherwise.

Side effects, ingredient by ingredient Vitamin A

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Vitamin A.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 388 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check with your pharmacist before taking this if you use retinoids (Major interaction), warfarin or other blood thinners, tetracycline antibiotics, or any hepatotoxic medications (Moderate interactions). High-dose vitamin A is where the concern lies, so mention your exact dose and all your prescriptions.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

Vitamin A supplementation is useful if you're deficient or have certain skin or digestive conditions. If you take retinoids, warfarin, tetracycline antibiotics, or medications that stress your liver, check with your pharmacist before starting.

Stick to recommended doses and avoid high-dose supplementation unless a clinician has told you to take it.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 25, 2016.

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

At a glance

General information

Key facts about Vitamin A, straight from the product label.

Brand Genestra Brands
Barcode (UPC) 88319610460
Net contents 60 Softgel Capsule(s)
Market status On market
Date entered into DSLD Jan 25, 2016
DSLD ID 55544
Product type Vitamin
Supplement form Softgel Capsule
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Vitamin A by Genestra Brands, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
60
UPC/BARCODE
88319610460
IngredientAmount% DV
Vitamin A10000 IU200%

Other ingredients: Soybean Oil, Bovine Gelatin, Glycerin, purified Water

Tap any ingredient to jump to its full detail below.

Label statements
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 Adult Dose: Take one capsule daily with a meal or as recommended by your healthcare practitioner.

Formulation

Warning: This product has come into contact with soy.

Guaranteed to contain no added wheat, starch, yeast, gluten, corn, sodium, sugar, artificial coloring or flavoring, antimicrobial preservatives or dairy products.

Precautions

Warning: This product has come into contact with soy. Do not use this product if you have a soy allergy.

Quality Assurance: Safety-sealed for your protection and for product freshness. Do not use if outer seal is missing or broken.

Storage

Store in a cool, dry place.

Seals/Symbols

Seroyal

FDA Statement of Identity

VITAMIN SUPPLEMENT

General

V1.0 126

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Vitamin A by Genestra Brands label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Vitamin A label

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)
What’s inside

The Ingredients in Vitamin A by Genestra Brands

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formSoftgel Capsule Servings per container60 Amounts shown are per serving.

Vitamin A

Interacts with
387 drugs
10000 IU per serving Form: Vitamin A Palmitate

Vitamin A is an essential nutrient important for vision, skin, immune function, and growth. Most people get enough from a balanced diet, and supplemen...

Vitamin A monograph & interactions

Other (inactive) ingredients: Soybean Oil, Bovine Gelatin, Glycerin, Purified Water. These complete the product’s ingredient list but are not active constituents.

Interaction report

Vitamin A by Genestra Brands Drug Interactions

Want to check YOUR meds against Vitamin A?

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 checker
387Drugs
9 Major 378 Moderate

Ingredients driving the most interactions

Vitamin A 387

Individual Drug Interactions

The ingredients in Vitamin A interact with 387 drugs. Click any drug to see the details.

1 of the 1 ingredient in Vitamin A interact with drugs. Each result below shows which ingredient is responsible. Vitamin A

Each ingredient & the kinds of drugs it affects

For each ingredient in Vitamin A with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Vitamin A4 drug types · 387 drugs

Retinoids

Concomitant use of retinoids with vitamin A supplements might produce supratherapeutic vitamin A levels.
Retinoids, which are vitamin A derivatives, could have additive toxic effects when taken with vitamin A supplements.

Likelihood Probable Evidence D
Hepatotoxic Drugs

Theoretically, taking high doses of vitamin A in combination with other potentially hepatotoxic drugs might increase the risk of liver disease.
The tolerable upper intake level (UL) is the highest level of intake that is likely to pose no risk of adverse effects. Doses of vitamin A above the UL can cause hepatotoxicity, ranging from elevated liver enzymes to liver failure.

Likelihood Possible Evidence C
Tetracycline Antibiotics

Theoretically, taking tetracycline antibiotics with high doses of vitamin A can increase the risk of pseudotumor cerebri.
Benign intracranial hypertension (pseudotumor cerebri) can occur with tetracyclines and with acute or chronic vitamin A toxicity. Case reports suggest that taking tetracyclines and vitamin A concurrently can increase the risk of this condition. Avoid high doses of vitamin A in people taking tetracyclines chronically.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, high doses of vitamin A could increase the risk of bleeding with warfarin.
Vitamin A toxicity is associated with hemorrhage and hypoprothrombinemia, possibly due to vitamin K antagonism. Advise patients taking warfarin to avoid doses of vitamin A above the tolerable upper intake level of 10,000 IU/day for adults.

Likelihood Possible Evidence D
Vitamin A full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Vitamin A, 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
Pharmacist Counseling Corner

Vitamin A by Genestra Brands: Common Questions

Does Vitamin A by Genestra Brands interact with any medications?
Yes. Based on its ingredients, Vitamin A has a known interaction with 387 medications, including 9 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Vitamin A contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is vitamin A safe to take while I'm pregnant or breastfeeding?
Normal dietary amounts and standard recommended supplements are safe during pregnancy and lactation. However, the data also shows that high-dose vitamin A supplements — especially ones containing retinol — carry a risk of birth defects and should be avoided unless your doctor or midwife has specifically directed you to take them. Talk with your healthcare provider about what's right for you.
Can high doses of vitamin A really be harmful?
Yes. Vitamin A builds up in your body because it's fat-soluble, so doses above the recommended upper limit of 10,000 IU per day for adults can become toxic over time. Chronic high-dose use causes dry, cracked skin, hair loss, brittle nails, and can damage your liver. In rare cases, very high doses have caused headaches, blurred vision, and in children, serious brain swelling.
What is vitamin A used for?
Vitamin A is effective for preventing and treating vitamin A deficiency. It's also possibly effective for oral leukoplakia (white patches in the mouth), aging skin, measles, ulcerative colitis, and bronchopulmonary dysplasia, a lung condition in premature infants.
Does this product contain any fillers?
The softgel capsule contains soybean oil, bovine gelatin, glycerin, and purified water in addition to the vitamin A. These are inactive ingredients that make the supplement stable and easy to swallow.
What side effects might I experience from vitamin A?
At recommended doses below the upper intake level, vitamin A is generally well-tolerated with few to no side effects. At high doses, you might notice dry lips and skin, skin rashes or redness, itching, hair loss, or brittle nails. Very high doses are rare but can cause headaches, blurred vision, and liver problems.
Is this product safe for children?
Children are more sensitive to vitamin A toxicity from a single large dose than adults are. High doses (around 25,000 IU per kilogram of body weight) can cause headache, drowsiness, dizziness, and in severe cases, delirium or coma. Talk with your pediatrician about the right dose for your child.

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.

Vitamin A label
Go deeper

The Full Monographs Behind Vitamin A’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Vitamin A

Interacts with 387 drugs

Vitamin A is an essential nutrient important for vision, skin, immune function, and growth. Most people get enough from a balanced diet, and supplements are mainly useful for correcting a tr...

Read the full Vitamin A monograph →
Sources

Sources & How We Checked

Vitamin A'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.

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 31 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.

Vitamin A 31 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Griffiths JK. The vitamin A paradox. J Pediatr 2000;137:604-7.. PubMed
  3. Hardman JG, Limbird LL, Molinoff PB, eds. Goodman and Gillman's The Pharmacological Basis of Therapeutics, 9th ed. New York, NY: McGraw-Hill, 1996.
  4. Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
  5. FDA Talk Paper. Vitamin A and birth defects (T95-56). Food and Drug Administration, U.S. Department of Health and Human Services, Rockville, MD. October 6, 1995.
  6. Russell RM. The vitamin A spectrum: from deficiency to toxicity. Am J Clin Nutr 2000;71:878-84. PubMed
  7. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  8. Feskanich D, Singh V, Willett WC, Colditz GA. Vitamin A intake and hip fractures among postmenopausal women. JAMA 2002;287:47-54. PubMed
  9. Melhus H, Michaelsson K, Kindmark A, et al. Excessive dietary intake of vitamin A is associated with reduced bone mineral density and increased risk for hip fracture. Ann Intern Med 1998;129:770-8. PubMed
  10. Michaelsson K, Lithell H, Vessby B, Melhus H. Serum retinol levels and the risk of fracture. N Engl J Med 2003;348:287-94.. PubMed
  11. Botterweck AA, van den Brandt PA, Goldbohm RA. Vitamins, carotenoids, dietary fiber, and the risk of gastric carcinoma: results from a prospective study after 6.3 years of follow-up. Cancer 2000;88:737-48.. DOI
  12. Meyskens FL Jr, Graham V, Chvapil M, et al. A phase I trial of beta-all-trans-retinoic acid delivered via a collagen sponge and a cervical cap for mild or moderate intraepithelial cervical neoplasia. J Natl Cancer Inst 1983;71:921-5..
  13. Hathcock JN, Hattan DG, Jenkins MY, et al. Evaluation of vitamin A toxicity. Am J Clin Nutr 1990;52:183-202.. PubMed
  14. Walters BN, Gubbay SS. Tetracycline and benign intracranial hypertension: report of five cases. Br Med J 1981;282:19-20.. PubMed
  15. Pearson MG, Littlewood SM, Bowden AN. Tetracycline and benign intracranial hypertension (letter). Br Med J 1981;282:568-9.. PubMed
  16. Azais-Braesco V, Pascal G. Vitamin A in pregnancy: requirements and safety limits. Am J Clin Nutr 2000;71:1325S-33S. PubMed
  17. Smedts HP, de Vries JH, Rakhshandehroo M, et al. High maternal vitamin E intake by diet or supplements is associated with congenital heart defects in the offspring. BJOG 2009;116:416-23. PubMed
  18. Grotto, I., Mimouni, M., Gdalevich, M., and Mimouni, D. Vitamin A supplementation and childhood morbidity from diarrhea and respiratory infections: a meta-analysis. J Pediatr 2003;142(3):297-304. PubMed
  19. Mahalanabis, D., Lahiri, M., Paul, D., Gupta, S., Gupta, A., Wahed, M. A., and Khaled, M. A. Randomized, double-blind, placebo-controlled clinical trial of the efficacy of treatment with zinc or vitamin A in infants and young children with severe acute l
  20. Long, K. Z., Montoya, Y., Hertzmark, E., Santos, J. I., and Rosado, J. L. A double-blind, randomized, clinical trial of the effect of vitamin A and zinc supplementation on diarrheal disease and respiratory tract infections in children in Mexico City, Mex
  21. Fritz, H., Kennedy, D., Fergusson, D., Fernandes, R., Doucette, S., Cooley, K., Seely, A., Sagar, S., Wong, R., and Seely, D. Vitamin A and retinoid derivatives for lung cancer: a systematic review and meta analysis. PLoS.One. 2011;6(6):e21107. PubMed
  22. Mayo-Wilson, E., Imdad, A., Herzer, K., Yakoob, M. Y., and Bhutta, Z. A. Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis. BMJ 2011;343:d5094. PubMed
  23. Mazumder S, Taneja S, Bhatia K, Yoshida S, Kaur J, Dube B, Toteja GS, Bahl R, Fontaine O, Martines J, Bhandari N; Neovita India Study Group. Efficacy of early neonatal supplementation with vitamin A to reduce mortality in infancy in Haryana, India (Neovit
  24. Baineni R, Gulati R, Delhi CK. Vitamin A toxicity presenting as bone pain. Arch Dis Child. 2017;102(6):556-8. PubMed
  25. Darlow BA, Graham PJ, Rojas-Reyes MX. Vitamin A supplementation to prevent mortality and short- and long-term morbidity in very low birth weight infants. Cochrane Database Syst Rev. 2016;(8):CD000501. PubMed
  26. Haider BA, Sharma R, Bhutta ZA. Neonatal vitamin A supplementation for the prevention of mortality and morbidity in term neonates in low and middle income countries. Cochrane Database Syst Rev. 2017;2:CD006980. PubMed
  27. Mohammad YM, Raslan IR, Al-Hussain FA. Idiopathic Intracranial Hypertension Induced by Topical Application of Vitamin A. J Neuroophthalmol. 2016;36(4):412-3. PubMed
  28. Masnadi Shirazi K, Nikniaz Z, Masnadi Shirazi A, Rohani M. Vitamin A supplementation decreases disease activity index in patients with ulcerative colitis: A randomized controlled clinical trial. Complement Ther Med. 2018 Dec;41:215-219. PubMed
  29. Ding Y, Hu P, Yang Y, et al. Impact of maternal daily oral low-dose vitamin A supplementation on the mother-infant pair: a randomised placebo-controlled trial in China. Nutrients 2021;13(7):2370. PubMed
  30. Knapik JJ, Hoedebecke SS. Vitamin A and bone fractures: systematic review and meta-analysis. J Spec Oper Med 2021;21(2):100-7. PubMed
  31. Imdad A, Mayo-Wilson E, Haykal MR, et al. Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age. Cochrane Database Syst Rev 2022;3(3):CD008524. PubMed

See these in context on the Vitamin A monograph →

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

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