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Papain

Other Name(s):

Carica papaya, Concentré de Protéase Végétale, Papaina, Papaïne, Papainum Crudum, Pepsine Végétale, Plant Protease Concentrate, Protease, Protéase, Vegetable Pepsin.

Overview

Papain is taken from the fruit of the papaya tree. It is used to make medicine.

Papain is used for pain and swelling (inflammation) as well as fluid retention following trauma and surgery. It is used as a digestive aid and for treating parasitic worms, inflammation of the throat and pharynx, shingles (herpes zoster) symptoms, ongoing diarrhea, hay fever, runny nose, and a skin condition called psoriasis. Papain is also used along with conventional treatments for tumors.

Some people apply papain directly to the skin to treat infected wounds, sores, and ulcers.

In manufacturing, papain is used in cosmetics, toothpaste, enzymatic soft contact lens cleaners, meat tenderizers, and meat products. It is also used for stabilizing and chill-proofing beer.

How does it work?

Papain contains substances called enzymes that help break down proteins.

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Side Effects

Papain is LIKELY SAFE when taken by mouth in amounts commonly found in foods. It is POSSIBLY SAFE when taken by mouth in medicinal amounts and when applied the skin as a solution in appropriate amounts. It can cause irritation of the throat and stomach.

Taking large amounts of papain by mouth is POSSIBLY UNSAFE. In excessive doses, papain can cause severe throat damage. Also, applying raw papain to the skin is POSSIBLY UNSAFE. Skin contact with raw papain can cause irritation and blisters.

There have also been reports of severe allergic reactions.

Special Precautions & Warnings

Pregnancy and breast-feeding: Taking papain by mouth during pregnancy is POSSIBLY UNSAFE. There is a concern that it might cause birth defects or miscarriage. Not enough is known about the safety of using papain during breast-feeding. Do not use it if you are pregnant or breast-feeding.

Allergy to fig or kiwi fruit: One case report suggests that people who are allergic to fig and kiwi might also be allergic to papain.

Bleeding disorders: There is a concern that papain might increase the risk of bleeding in people with a clotting disorder.

Surgery: Papain might increase the risk of bleeding during surgery. Stop taking papain 2 weeks before surgery.

Interactions


Warfarin (Coumadin)Interaction Rating: Moderate Be cautious with this combination.Talk with your health provider.

Warfarin (Coumadin) is used to slow blood clotting. Papain might increase the effects of warfarin (Coumadin) and increase the chances of bruising and bleeding. Be sure to have your blood checked regularly. The dose of your warfarin (Coumadin) might need to be changed..

Dosing

The following doses have been studied in scientific research:

BY MOUTH:

  • For treating pain and swelling (inflammation) following an accident or surgery: 1500 mg (2520 FIP units) of papain per day.