Podophyllum + Fosphenytoin
Fosphenytoin brand name: Cerebyx.
We found no known interaction between Podophyllum and Fosphenytoin 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.
Podophyllum and Fosphenytoin
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 Fosphenytoin and Podophyllum 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.
Worth understanding: our licensed dataset holds no drug-interaction record for Podophyllum at all — not against Fosphenytoin, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
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.
Podophyllum 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.
Podophyllum in Pregnancy & Breastfeeding
When used orally or topically for self-medication; avoid using. Podophyllum is potentially embryotoxic and teratogenic. Oral and topical use can result in birth defects and fetal death.
When used orally or topically for self-medication; avoid using.
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
See Every Supplement That Interacts With Fosphenytoin
This page covers Podophyllum only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Fosphenytoin page lists 205 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: 1,4-butanediol (major), American Hellebore (major), Arsenic (major), Beer (major) and Cesium (major).
By severity: 14 major · 172 moderate · 19 minor.
From our pharmacist’s overview on the Fosphenytoin page
“St. John's wort is the entry I would flag first with fosphenytoin (Cerebyx).”
Reviewed by 2 · Jul 18, 2026
Taking Podophyllum as Part of a Dietary Supplement Product? Check It for Interactions
We hold 9 real supplement products containing Podophyllum, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Podophyllum. Even though Podophyllum itself has no known interaction with Fosphenytoin, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Podophyllum and Fosphenytoin 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.
#838 of 1,452 supplements looked up here in the last 7 days
#2,062 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 Podophyllum reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Podophyllum and Fosphenytoin records this page draws on were last updated July 11, 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 Podophyllum
What is Podophyllum?
- Genital and skin warts (topical)
- Constipation (historical/traditional laxative)
- Digestive complaints (homeopathic)
- Watery diarrhea (homeopathic)
- Liver and gallbladder remedies (traditional)
Podophyllum (American mayapple) is a toxic plant whose resin contains podophyllotoxin, used in prescription topical products to treat warts. The raw plant and crude resin are poisonous if taken by mouth and should never be self-used. Only use FDA-approved wart products exactly as directed and under medical guidance.
Podophyllum peltatum · Berberidaceae · Dried root and rhizome (and the resin extracted from it, called podophyllin) · Topical resin/solution (prescription podophyllin and podofilox), homeopathic preparations; historically a crude purgative
An interaction check asks whether these two react with each other — it does not ask whether Podophyllum is a good idea for someone in your situation. Here is what our Podophyllum record says about it on its own.
Podophyllum: dosing
There is no safe self-care oral dose for podophyllum, and the whole plant should not be taken by mouth. For warts, dosing is determined entirely by the strength of the prescription product and your clinician's instructions.If you are prescribed a topical podophyllin or podofilox product, use only the amount directed, apply it only to the warts, and follow the schedule and wash-off instructions exactly. Never increase the amount or frequency on your own.
From our Podophyllum monograph — the full record covers uses, side effects and every documented interaction.
About Fosphenytoin Injection
What Is Fosphenytoin Injection Used For?
Brand name: Cerebyx
Fosphenytoin injection is used to treat generalized tonic-clonic status epilepticus (a prolonged, life-threatening seizure emergency) and to prevent or treat seizures that occur during or after brain surgery. It is given by intravenous (IV) or intramuscular (IM) injection in a hospital or clinical setting.
It can also be used short-term as a substitute for oral phenytoin when a patient cannot take medicine by mouth. This use is temporary — as soon as oral phenytoin is possible again, it should replace the injection.
Other Drugs & Podophyllum
Browse every other medication we’ve checked against Podophyllum — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Podophyllum against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Aspirin ›
- Ivermectin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Tadalafil ›
- Acetaminophen ›
- Clopidogrel ›
- Valacyclovir ›
- Atorvastatin ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Methamphetamine ›
- Ibuprofen ›
- Sumatriptan ›
- Semaglutide ›
- Tirzepatide ›
- Warfarin Sodium ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Acyclovir ›
- Bupropion ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Lamotrigine ›
- Fluoxetine ›
- Methotrexate ›
- Acetaminophen, Codeine ›
- Gabapentin ›
- Amphetamine ›
- Pregabalin ›
- Isotretinoin ›
- Dextroamphetamine ›
- Azithromycin ›
- Clonazepam ›
- Quetiapine ›
- Omeprazole ›
- Amlodipine Besylate ›
- Methylene Blue ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
- Naproxen ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Podophyllum list.
Podophyllum References
The 13 references that drive our Podophyllum 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.
- Cassidy DE, Drewry J, Fanning JP. Podophyllum toxicity: a report of a fatal case and a review of the literature. J Toxicol Clin Toxicol 1982;19:35-44. PubMed
- Rosenstein G, Rosenstein H, Freeman M, Weston N. Podophyllum-a dangerous laxative. Pediatrics 1976;57:419-21. DOI
- Lozada-Nur F, Costa C. Retrospective findings of the clinical benefits of podophyllum resin 25% sol on hairy leukoplakia. Clinical results in nine patients. Oral Surg Oral Med Oral Pathol 1992;73:555-8. PubMed
- Frasca T, Brett AS, Yoo SD. Mandrake toxicity. A case of mistaken identity. Arch Intern Med 1997;157:2007-9.
- Schwartz J, Norton SA. Useful plants of dermatology. VI. The mayapple (Podophyllum). J Am Acad Dermatol 2002;47:774-5. PubMed
- Mack RB. Living mortals run mad. Mandrake (podophyllum) poisoning. N C Med J 1992;53:98-9.
- Longstaff E, von Krogh G. Condyloma eradication: self-therapy with 0.15-0.5% podophyllotoxin versus 20-25% podophyllin preparations--an integrated safety assessment. Regul Toxicol Pharmacol 2001;33:117-37. PubMed
- Wiley DJ, Douglas J, Beutner K, et al. External genital warts: diagnosis, treatment, and prevention. Clin Infect Dis 2002;35:S210-24. PubMed
- Moura, M. D., Guimaraes, T. R., Fonseca, L. M., de, Almeida Pordeus, I, and Mesquita, R. A. A random clinical trial study to assess the efficiency of topical applications of podophyllin resin (25%) versus podophyllin resin (25%) together with acyclovir c
- Martin, L. K., Rubin, A. I., Theocharous, C., and Murrell, D. F. Podophyllin reaction mimicking Bowen's disease in a patient with delusions of verrucosis. Clin Exp.Dermatol 2008;33(4):443-445. PubMed
- Chamberlain, M. J., Reynolds, A. L., and Yeoman, W. B. Medical memoranda. Toxic effect of podophyllum application in pregnancy. Br.Med.J. 8-12-1972;3(823):391-392. PubMed
- Karol, M. D., Conner, C. S., Watanabe, A. S., and Murphrey, K. J. Podophyllum: suspected teratogenicity from topical application. Clin.Toxicol. 1980;16(3):283-286. PubMed
- Gowdey, G., Lee, R. K., and Carpenter, W. M. Treatment of HIV-related hairy leukoplakia with podophyllum resin 25% solution. Oral Surg.Oral Med.Oral Pathol.Oral Radiol.Endod. 1995;79(1):64-67. 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.
Fosphenytoin Is Linked to Lower Levels of One Nutrient
Natural Medicines records Fosphenytoin as a medicine that can lower these. This is not an interaction with Podophyllum — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Fosphenytoin nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Podophyllum and Fosphenytoin Together: Common Questions
Is it safe to take Podophyllum with Fosphenytoin?
Do Podophyllum and Fosphenytoin have any of the same side effects?
Does Fosphenytoin interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Keep Exploring
Still Have a Question About Fosphenytoin and Podophyllum?
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.