✓ No active regulatory warningsFDA MedWatch, EMA EudraVigilance, WHO VigiBase, WADA Prohibited List · 2026-05-29
⚠ Latex-allergic patient using papain — 35% cross-reactivity [1]
⚠ Pregnant patient consuming unripe papaya/papain — uterotonic traditional abortifacient [1]
⚠ Patient on warfarin + systemic enzymes — bleeding risk [1]
⚠ Patient taking systemic enzymes WITH food — loses systemic effect; becomes digestive only [1]
🥗 Food first — build your daily Typical 100–500 mg
Check the foods you regularly eat — the bar fills toward your daily target.
Unripe papaya (100 g)50 mg papain (approximate — ripe papaya has much less)
Ripe papaya (100 g)5 mg papain (approximate — ripe papaya has much less)
Papaya leaf tea10 mg papain (approximate — ripe papaya has much less)
Check your regular foods above
🔬 Lab interpreter
ℹ️ No validated blood test. There is no established laboratory test to assess status or guide dosing for this ingredient. Clinical response and symptoms are the practical guide.
⚕ For professionals — confirm ranges against your local laboratory.
Clinical verdict
Papain is a protease from unripe papaya with dual use: digestive aid (with meals) or systemic anti-inflammatory (empty stomach, enteric-coated). Wobenzym® (papain + bromelain + trypsin) has the best OA evidence. Critical safety: latex-fruit syndrome cross-reactivity (~35% in latex-allergic); uterotonic — avoid in pregnancy; anticoagulant interaction [1].
1 How much do I need?
👤 Adults: Specific dosage data under clinical review
👴 Elderly: Specific dosage data under clinical review
🤰 Pregnancy: See guidance
AVOID papain/unripe papaya — traditional abortifacient. Ripe papaya fruit is generally safe [1].
👦 Pediatric: See guidance
Not recommended for children without medical guidance [1].
🏃 Athletes: Standard dose
⚖️ Obesity: Standard dose
Fat-soluble compounds may require dose adjustment in obesity.
🩺 Renal: Consult specialist
Dose adjustment may be needed in renal impairment.
🌱 Vegan: Standard dose
How to take
🍽 Timing: Digestive: with meals. Systemic: 30 min before meals, empty stomach [1].
💊 With food: Digestive: with protein meals. Systemic: AWAY from food [1].
🚫 Avoid: In latex allergy. During pregnancy. With anticoagulants [1].
2 Which form?
| Form | Bioavailability | Vegan | Cost |
|---|---|---|---|
| ['Papain digestive enzyme (capsules)', 'common', '100–500 mg with meals for protein digestion support [1].'] | Standard | Check label | |
| ['Systemic enzyme blend (Wobenzym®)', 'clinical', 'Enteric-coated combination. Taken between meals for anti-inflammatory/fibrinolytic effects [1].'] | Standard | Check label | |
| ['Papain topical (wound debridement)', 'medical', 'Accuzyme® (papain-urea). For wound eschar removal. Prescription product [1].'] | Standard | Check label |
3 Common questions
Can I be allergic to papain if I'm allergic to latex? ▼
Yes. Latex-fruit syndrome: papain shares allergenic proteins with natural rubber latex. Patients with latex allergy have ~35% cross-reactivity risk with papaya/papain. Also cross-reacts with kiwi, banana, avocado, and chestnut [1].
Why take systemic enzymes on empty stomach? ▼
When taken WITH food, papain acts as a digestive enzyme (breaks down meal protein). When taken on EMPTY stomach, papain is absorbed intact (if enteric-coated), entering circulation where it exerts systemic anti-inflammatory and fibrinolytic effects. The timing determines the function [1].
Is Wobenzym® the same as papain? ▼
No. Wobenzym® is a multi-enzyme combination (papain + bromelain + trypsin + chymotrypsin + rutin). Most clinical evidence is for the combination, not papain alone. Individual enzymes may have different contributions [1].
4 Clinical evidence
Strong
Wound debridement: papain-urea (Accuzyme®) is FDA-cleared for enzymatic wound debridement [1]. HIGH
Moderate
OA (systemic enzymes): Wobenzym® showed comparable efficacy to diclofenac for knee OA in 1 RCT (n=80) [1]. Post-surgical edema: 2 RCTs of systemic enzyme combinations (including papain) reduced edema and pain after dental/orthopedic surgery [1]. Digestive support: traditional use; papain demonstrated protein digestion enhancement in vitro [1]. MODERATE
Insufficient
5 Safety, toxicity & adverse events
Absolute contraindications
✕ Papaya/latex allergy
Relative
⚠ Anticoagulants — possible additive effect; discontinue before surgery
⚠ Active peptic ulcer
⚠ Pregnancy — avoid concentrated supplements (unripe papaya/papain has uterine-stimulant reports)
🚩 Red flags
● Latex-allergic patient [1]
● Pregnant patient consuming unripe papaya [1]
● Patient on anticoagulants [1]
6 Interactions
Drug interactions
Warfarin / Anticoagulants Moderate
Mechanism: Fibrinolytic/antiplatelet activity [1].
Effect: Increased bleeding risk [1].
Action: Monitor INR [1].
Supplement synergies
Bromelain · Per combination product
Classic systemic enzyme pair (both in Wobenzym®) [1].
Classic systemic enzyme pair (both in Wobenzym®) [1].
7 Regulatory
United States (FDA): Dietary supplement (oral). Accuzyme® (topical papain-urea): FDA-cleared medical device for wound debridement [1].
Germany: Wobenzym® registered as pharmaceutical in Germany [1].
8 US supplement products
364
on-market products containing Papain (NIH DSLD)
Brands carrying Papain (139)
Click a brand to see its Papain products.
9 Frequently paired with
10 References (3)
[1]Muss C, et al. Papaya preparation (Caricol®) in digestive disorders. Neuro Endocrinol Lett. 2013;34(1):38-46. REVIEW Accessed: 2026-05-29
[2]Akhtar NM, et al. Oral enzyme combination versus diclofenac in the treatment of osteoarthritis of the knee — a double-blind prospective randomized study. Clin Rheumatol. 2004;23(5):410-418. doi:10.1007/s10067-004-0902-y RCT Accessed: 2026-05-29
[3]Starley IF, et al. The treatment of paediatric burns using topical papaya. Burns. 1999;25(7):636-639. doi:10.1016/S0305-4179(99)00056-X REVIEW Accessed: 2026-05-29
11 Related articles
Auto-populated from GMJ Newsroom. Articles tagged "Papain".
12 Cite this page
Vancouver: Pkhakadze G. Papain — safety profile [Internet]. Tbilisi: PHIG; 2026 [cited 2026 Jun 01]. Available from: https://supplement.ge/ingredients/papain/
APA 7th: Pkhakadze, G. (2026). Papain — Safety profile. Public Health Institute of Georgia. https://supplement.ge/ingredients/papain/
📋 Editorial information
Author: Prof. G. Pkhakadze, MD, MPH, PhD
Institution: Public Health Institute of Georgia (PHIG)
Affiliation: David Tvildiani Medical University (DTMU)
First published: January 2026
Last reviewed: 2026-05-29
Next review: December 2026
References: 3 cited sources
COI: SupplementIndex receives no funding from supplement manufacturers. All content independently authored by PHIG.
Process: Systematic literature review
📄 License & reuse
Published under Creative Commons Attribution 4.0 International (CC BY 4.0). You may share and adapt for any purpose with attribution.
Pkhakadze G. "Papain — Safety Profile." SupplementIndex, PHIG, 2026. https://supplement.ge/ingredients/papain/ CC BY 4.0.
GP
Educational and public health purposes. CC BY 4.0. Consult your healthcare provider before starting any supplement. Corrections: info@accreditation.ge. Publisher: PHIG