Vitamin A + Tildrakizumab-Asmn
Tildrakizumab-Asmn brand name: Ilumya.
We found no known interaction between Vitamin A and Tildrakizumab-Asmn in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.
Vitamin A and Tildrakizumab-Asmn
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Tildrakizumab-Asmn and Vitamin A in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Vitamin A safety at a glance
Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Tildrakizumab-Asmn
Interactions in our licensed database are recorded against drug classes, not just single drug names. Tildrakizumab-Asmn is filed under a single classification — immunosuppressants. Vitamin A has documented interactions with 4 drug classes — the most serious being retinoids (major), hepatotoxic drugs (moderate) and tetracycline antibiotics (moderate) — and none of Tildrakizumab-Asmn’s classifications are among them.
Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.
Vitamin A Does Interact With Other Medications
Vitamin A has 9 major, 378 moderate known drug interactions in our database — Tildrakizumab-Asmn isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Vitamin A
We haven’t checked that one against Vitamin A yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Vitamin A. Pick one to open its full report.
Vitamin A in Pregnancy & Breastfeeding
When used orally or intramuscularly and appropriately. Vitamin A, as pre-formed vitamin A (retinol or retinyl ester), is safe during pregnancy and lactation when used in doses less than 10,000 IU (3000 mcg) per day in adults 19 years of age and older and 2800 mcg daily in those 14-18 years of age. Vitamin A is available in two different forms: pre-formed vitamin A (retinol or retinyl ester) and provitamin A (carotenoids). The safety concerns associated with high vitamin A intake occur with pre-formed vitamin A only. Some supplements contain vitamin A in both pre-formed and provitamin A forms. For these supplements, the amount of pre-formed vitamin A should be used as the reference amount to determine safety.
When used orally or intramuscularly in excessive doses. Daily intake of greater than 10,000 IU (3000 mcg) can cause fetal malformations. Excessive dietary intake of vitamin A has also been associated with teratogenicity. The first trimester of pregnancy seems to be the critical period for susceptibility to vitamin A-associated birth defects such as craniofacial abnormalities and abnormalities of the central nervous system. Pregnant patients should monitor their intake of pre-formed vitamin A (retinol or retinyl ester). This form of vitamin A is found in several foods including animal products, particularly fish and animal liver, some fortified breakfast cereals, and dietary supplements.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center
What Tildrakizumab-Asmn Is Prescribed For, and What Vitamin A Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Tildrakizumab-Asmn is a prescription medicine with approved uses on its FDA label. Vitamin A is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Tildrakizumab-Asmn is prescribed for: Ilumya (tildrakizumab-asmn) is used to treat moderate-to-severe plaque psoriasis in adults who are candidates for systemic therapy or phototherapy (light-based treatment). It is given as a subcutaneous (under-the-skin) injection by a healthcare provider.
Vitamin A has been studied for:
-
Psoriasis studied, not established Vitamin A has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Vitamin A for psoriasis
It is unclear if topical vitamin A is beneficial for psoriasis symptoms.
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Tildrakizumab-Asmn on your own; if you are taking Vitamin A for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
Questions About Vitamin A or Tildrakizumab-Asmn
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Vitamin A or Tildrakizumab-Asmn, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
- Can You Take Cod Liver Oil With Rivaroxaban (Xarelto)? ›
- Can Kre-Alkalyn or Other Supplements Cause Hair Loss? ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Tildrakizumab-Asmn
This page covers Vitamin A only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tildrakizumab-Asmn page lists 53 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Active Hexose Correlated Compound (ahcc) (moderate), Alfalfa (moderate), American Ginseng (moderate), Andrographis (moderate) and Ashwagandha (moderate).
By severity: 52 moderate · 1 minor.
From our pharmacist’s overview on the Tildrakizumab-Asmn page
“Ilumya (tildrakizumab-asmn) works by dampening a specific immune pathway that drives plaque psoriasis, and the 53 supplements listed here all fall into one category, ingredients believed to stimulate the immune system. The concern with each is a weaker response to the drug, not a dangerous reaction.”
Reviewed by 2 · Jul 18, 2026
Taking Vitamin A as Part of a Dietary Supplement Product? Check It for Interactions
We hold 19,215 real supplement products containing Vitamin A, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Vitamin A. Even though Vitamin A itself has no known interaction with Tildrakizumab-Asmn, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Vitamin A and Tildrakizumab-Asmn Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#11 of 1,452 supplements looked up here in the last 7 days
#827 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Vitamin A reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Vitamin A and Tildrakizumab-Asmn records this page draws on were last updated July 10, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Vitamin A
What is Vitamin A?
- Eye and vision health
- Skin health and acne
- Immune support
- Correcting vitamin A deficiency
- Childhood growth and development
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 true deficiency. Because vitamin A is fat-soluble and can build up to harmful levels, more is not better, and high doses are especially risky in pregnancy.
Capsules, softgels, tablets, liquid drops, multivitamins; also found in foods
An interaction check asks whether these two react with each other — it does not ask whether Vitamin A is a good idea for someone in your situation. Here is what our Vitamin A record says about it on its own.
Vitamin A: dosing
Vitamin A needs are usually described in micrograms of retinol activity equivalents (mcg RAE) or sometimes older International Units (IU). Because of the risk of buildup, this is one supplement where taking extra is not helpful and can be harmful.There is no single "best" supplement dose for most people, and many do not need a separate vitamin A supplement at all.
From our Vitamin A monograph — the full record covers uses, side effects and every documented interaction.
About Tildrakizumab-asmn injection
What Is Tildrakizumab-asmn injection Used For?
Brand name: Ilumya
Ilumya (tildrakizumab-asmn) is used to treat moderate-to-severe plaque psoriasis in adults who are candidates for systemic therapy or phototherapy (light-based treatment). It is given as a subcutaneous (under-the-skin) injection by a healthcare provider.
Other Drugs & Vitamin A
Browse every other medication we’ve checked against Vitamin A — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
9 interactions
378 interactions
- Diclofenac Sodium ›
- Nifedipine ›
- Doxycycline ›
- Minocycline ›
- Tetracycline ›
- Amoxicillin ›
- Testosterone ›
- Verapamil ›
- Fenofibrate ›
- Levonorgestrel ›
- Quinidine ›
- Cyclosporine ›
- Glyburide ›
- Methyltestosterone ›
- Ciprofloxacin ›
- Phenytoin ›
- Allopurinol ›
- Carbamazepine ›
- Diclofenac Potassium ›
- Acetaminophen ›
- Methotrexate ›
- Nitrofurantoin ›
- Ofloxacin ›
- Propoxyphene ›
- Rifampin ›
- Testosterone Undecanoate ›
- Acarbose ›
- Dapsone ›
- Doxycycline Hyclate ›
- Duloxetine ›
- Eltrombopag ›
- Interferon Alfa-2b ›
- Interferon Beta-1b ›
- Isoniazid ›
- Itraconazole ›
- Levofloxacin ›
- Naltrexone ›
- Riluzole ›
- Valproic Acid ›
- Warfarin Sodium ›
- Abiraterone Acetate ›
- Acebutolol ›
- Ambrisentan ›
- Amiodarone ›
- Azathioprine ›
- Chlorpropamide ›
- Choline Magnesium Trisalicylate ›
- Cyclophosphamide ›
- Daclizumab ›
- Dantrolene ›
- Deferasirox ›
- Diclofenac Epolamine ›
- Fingolimod ›
- Fluconazole ›
- Fluvastatin ›
- Gatifloxacin ›
- Interferon Beta-1a ›
- Labetalol ›
- Lovastatin ›
- Maraviroc ›
Showing 60 of 378 moderate interactions — see all 378 on the Vitamin A page.
No interaction 2,442 drugs checked — show the list
We also checked Vitamin A against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Sertraline ›
- Losartan Potassium ›
- Metoprolol ›
- Aspirin ›
- Ivermectin ›
- Rivaroxaban ›
- Escitalopram ›
- Tadalafil ›
- Clopidogrel ›
- Valacyclovir ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Methamphetamine ›
- Ibuprofen ›
- Sumatriptan ›
- Semaglutide ›
- Tirzepatide ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Acyclovir ›
- Bupropion ›
- Metformin ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Lamotrigine ›
- Fluoxetine ›
- Gabapentin ›
- Amphetamine ›
- Pregabalin ›
- Dextroamphetamine ›
- Azithromycin ›
- Clonazepam ›
- Quetiapine ›
- Omeprazole ›
- Amlodipine Besylate ›
- Methylene Blue ›
- Buspirone ›
- Letrozole ›
- Citalopram ›
- Naproxen ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
- Diazepam ›
- Cyclopentolate ›
- Candesartan Cilexetil ›
- Mannitol ›
- Cephalexin ›
- Roxithromycin ›
- Pegunigalsidase Alfa-iwxj ›
- Acetaminophen, Dextromethorphan, Doxylamine ›
- Daptomycin ›
- Mirtazapine ›
- Finasteride ›
Showing the 60 most looked-up of 2,442 medications checked with no known interaction — see the full Vitamin A list.
Vitamin A References
The 31 references that drive our Vitamin A monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Griffiths JK. The vitamin A paradox. J Pediatr 2000;137:604-7.. PubMed
- Hardman JG, Limbird LL, Molinoff PB, eds. Goodman and Gillman's The Pharmacological Basis of Therapeutics, 9th ed. New York, NY: McGraw-Hill, 1996.
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- 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.
- Russell RM. The vitamin A spectrum: from deficiency to toxicity. Am J Clin Nutr 2000;71:878-84. PubMed
- 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.
- Feskanich D, Singh V, Willett WC, Colditz GA. Vitamin A intake and hip fractures among postmenopausal women. JAMA 2002;287:47-54. PubMed
- 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
- 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
- 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
- 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..
- Hathcock JN, Hattan DG, Jenkins MY, et al. Evaluation of vitamin A toxicity. Am J Clin Nutr 1990;52:183-202.. PubMed
- Walters BN, Gubbay SS. Tetracycline and benign intracranial hypertension: report of five cases. Br Med J 1981;282:19-20.. PubMed
- Pearson MG, Littlewood SM, Bowden AN. Tetracycline and benign intracranial hypertension (letter). Br Med J 1981;282:568-9.. PubMed
- Azais-Braesco V, Pascal G. Vitamin A in pregnancy: requirements and safety limits. Am J Clin Nutr 2000;71:1325S-33S. PubMed
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- Baineni R, Gulati R, Delhi CK. Vitamin A toxicity presenting as bone pain. Arch Dis Child. 2017;102(6):556-8. PubMed
- 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
- 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
- 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
- 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
- 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
- Knapik JJ, Hoedebecke SS. Vitamin A and bone fractures: systematic review and meta-analysis. J Spec Oper Med 2021;21(2):100-7. PubMed
- 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
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Taking Vitamin A and Tildrakizumab-Asmn Together: Common Questions
Is it safe to take Vitamin A with Tildrakizumab-Asmn?
Do Vitamin A and Tildrakizumab-Asmn have any of the same side effects?
Are Vitamin A and Tildrakizumab-Asmn used for the same thing?
How was the Vitamin A and Tildrakizumab-Asmn combination checked?
Does Vitamin A interact with any other medications?
Does Tildrakizumab-Asmn interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Keep Exploring
Still Have a Question About Tildrakizumab-Asmn and Vitamin A?
Our pharmacists answer your medication & supplement questions — free.
This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.