Papain + Belumosudil Mesylate
Belumosudil Mesylate brand name: Rezurock.
We found no known interaction between Papain and Belumosudil Mesylate 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 label for Belumosudil Mesylate states a food rule worth keeping to, and 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.
Papain and Belumosudil Mesylate
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 Belumosudil Mesylate and Papain 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.
Papain 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 Belumosudil Mesylate
Interactions in our licensed database are recorded against drug classes, not just single drug names. Belumosudil Mesylate is filed under 2 classifications — cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Papain has documented interactions with 1 drug class — the most serious being warfarin (coumadin) (moderate) — and none of Belumosudil Mesylate’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.
Papain Does Interact With Other Medications
Papain has 2 moderate known drug interactions in our database — Belumosudil Mesylate isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Papain
We haven’t checked that one against Papain yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Papain. Pick one to open its full report.
Papain in Pregnancy & Breastfeeding
When used orally. There is some concern that crude papain is teratogenic and embryotoxic.
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
Some Belumosudil Mesylate Products Have a Food Rule — Papain Should Not Break It
At least one FDA label for a product containing Belumosudil Mesylate says to take it with food. If you take Papain on an empty stomach out of habit, keep them separate — and take Belumosudil Mesylate with a meal where the label says to.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Belumosudil Mesylate products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.
2 DOSAGE AND ADMINISTRATION Recommended Dosage : 200 mg taken orally once daily with food.
From the Dosage and Administration section of the FDA label we read for Belumosudil Mesylate — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›
A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.
See Every Supplement That Interacts With Belumosudil Mesylate
This page covers Papain only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Belumosudil Mesylate page lists 138 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).
By severity: 3 major · 94 moderate · 41 minor.
From our pharmacist’s overview on the Belumosudil Mesylate page
“Most people taking belumosudil (Rezurock) are managing chronic graft-versus-host disease after a stem cell transplant, and many reach for supplements hoping for extra support. This list warrants real vigilance.”
Reviewed by 2 · Jul 18, 2026
Taking Papain as Part of a Dietary Supplement Product? Check It for Interactions
We hold 3,790 real supplement products containing Papain, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Papain. Even though Papain itself has no known interaction with Belumosudil Mesylate, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Papain and Belumosudil Mesylate 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.
#71 of 1,452 supplements looked up here in the last 7 days
#811 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 Papain reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Papain and Belumosudil Mesylate 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 Papain
What is Papain?
- Digestive support for protein digestion
- Wound cleaning (debridement of dead tissue)
- Sore throat and inflammation
- Sports injuries such as sprains
- Skin conditions
Papain is a protein-digesting enzyme from the papaya plant that is used in digestive supplements and some topical products. While it has clear food and laboratory uses, strong human evidence for most health claims is limited, and it can cause allergic reactions or throat irritation. Check with a pharmacist or doctor before using it, especially if you have a latex or papaya allergy.
Carica papaya · Caricaceae · Latex (sap) from the unripe fruit; also derived from leaves · Capsules, tablets, chewable digestive enzyme blends, topical ointments and gels, meat tenderizer powder
An interaction check asks whether these two react with each other — it does not ask whether Papain is a good idea for someone in your situation. Here is what our Papain record says about it on its own.
Papain: dosing
There is no official, standardized dose for papain. The amount in supplements varies widely between products and is often measured in enzyme activity units rather than milligrams.The safest approach is to follow the directions on the product label and not exceed the recommended amount.
From our Papain monograph — the full record covers uses, side effects and every documented interaction.
About Belumosudil
What Is Belumosudil Used For?
Brand name: Rezurock
Rezurock (belumosudil) is used to treat chronic graft-versus-host disease (chronic GVHD) — a serious immune condition that can occur after a stem cell or bone marrow transplant, where the donor's immune cells attack the recipient's body. It is specifically for patients aged 12 and older whose chronic GVHD has not responded to at least two prior systemic (whole-body) treatments.
Other Drugs & Papain
Browse every other medication we’ve checked against Papain — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
2 interactions
No interaction 2,827 drugs checked — show the list
We also checked Papain against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Metoprolol ›
- Rivaroxaban ›
- Aspirin ›
- Rosuvastatin ›
- Acetaminophen ›
- Escitalopram ›
- Abemaciclib ›
- Clopidogrel ›
- Tadalafil ›
- Atorvastatin ›
- Docusate ›
- Tirzepatide ›
- Valacyclovir ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Semaglutide ›
- Sumatriptan ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Bupropion ›
- Amitriptyline ›
- Methotrexate ›
- Bendamustine ›
- Acyclovir ›
- Doxycycline ›
- Amphetamine ›
- Fluoxetine ›
- Isotretinoin ›
- Lamotrigine ›
- Pregabalin ›
- Azithromycin ›
- Acetaminophen, Codeine ›
- Gabapentin ›
- Amlodipine Besylate ›
- Dextroamphetamine ›
- Clonazepam ›
- Methylene Blue ›
- Omeprazole ›
- Quetiapine ›
- Letrozole ›
- Duloxetine ›
- Naproxen ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
Showing the 60 most looked-up of 2,827 medications checked with no known interaction — see the full Papain list.
Papain References
The 11 references that drive our Papain 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.
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Shaw D, Leon C, Kolev S, Murray V. Traditional remedies and food supplements: a 5-year toxicological study (1991-1995). Drug Saf 1997;17:342-56.
- Shuttleworth D, Hill S, Marks R, Connelly DM. Relief of experimentally induced pruritus with a novel eutectic mixture of local anaesthetic agents. Br J Dermatol 1988;119:535-40.
- Mansfield LE, Ting S, Haverly RW, Yoo TJ. The incidence and clinical implications of hypersensitivity to papain in an allergic population, confirmed by blinded oral challenge. Ann Allergy 1985;55:541-3.
- Martin, T., Uhder, K., Kurek, R., Roeddiger, S., Schneider, L., Vogt, H. G., Heyd, R., and Zamboglou, N. Does prophylactic treatment with proteolytic enzymes reduce acute toxicity of adjuvant pelvic irradiation? Results of a double-blind randomized trial PubMed
- Walker-Renard, P. Update on the medicinal management of phytobezoars. Am J Gastroenterol. 1993;88(10):1663-1666.
- Tymoszuk D, Wiszniewska M, Walusiak-Skorupa J. Papain-induced occupational rhinoconjunctivitis and asthma - A case report. Med Pr 2016;67(1):109-12. PubMed
- Soto-Mera MT, López-Rico MR, Filgueira JF, et al. Occupational allergy to papain. Allergy 2000;55(10):983-4. PubMed
- Tarlo SM, Shaikh W, Bell B, et al. Papain-induced allergic reactions. Clin Allergy 1978;8(3):207-15. PubMed
- Baur X, König G, Bencze K, Fruhmann G. Clinical symptoms and results of skin test, RAST and bronchial provocation test in thirty-three papain workers: Evidence for strong immunogenic potency and clinically relevant proteolytic e?ects of airborne papain. C
- Novey HS, Keenan WJ, Fairshter RD, Wells ID, Wilson AF, Culver BD. Pulmonary disease in workers exposed to papain: clinico-physiological and immunological studies. Clin Allergy 1980;10(6):721-31. 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 Papain and Belumosudil Mesylate Together: Common Questions
Is it safe to take Papain with Belumosudil Mesylate?
Do Papain and Belumosudil Mesylate have any of the same side effects?
Should I take Papain and Belumosudil Mesylate at the same time of day?
How was the Papain and Belumosudil Mesylate combination checked?
Does Papain interact with any other medications?
Does Belumosudil Mesylate interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.