Papain

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.

Herpes zoster (shingles).
Sore throat and throat swelling (pharyngitis).
Muscle soreness after exercise.
Illness caused by radiation therapy.
Wound healing.
Digestion problems.
Diarrhea.
Hay fever.
Runny nose.
Psoriasis.
Treating infected wounds.
Sores.
Ulcers.
Intestinal worms.

By Mouth:

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

Papain is SAFE when taken by mouth in amounts commonly found in foods. It is 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.

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.