Dr. Hans Nieper, well known for his work with proteolytic enzymes, referred to serrapeptidase as "the miracle enzyme".
What the Research Shows
Ear, Nose, and Throat Conditions
A study of 193 patients with acute or chronic ear, nose and throat pathologies (including laryngitis). After 3-4 days, patients taking serrapeptidase experienced a significant reduction in pain, secretion and other symptoms. Improvement was excellent or good for 97.3% of the serrapeptidase patients, compared with only 21.9% of the placebo patients.(1)
Respiratory Conditions
In respiratory diseases characterized by increased production of dense mucus, serrapeptidase alters mucus elasticity and results in a considerable reduction in viscosity, confirming its efficacy as a mucolytic agent.(2,3,4) A Japanese study of patients with chronic airway diseases found that treatment with serrapeptidase caused symptoms to significantly decrease, and exerted a beneficial effect on mucus clearance.(5) A double-blind study of 174 patients found the degree of swelling in serrapeptidase-treated patients was consistently and significantly less than in the placebo group, without side effects.(6)
Fibrocystic Breast Disease
In a double-blind study of 70 patients with fibrocystic breast disease, 85.7% of the patients receiving serrapeptidase reported moderate to marked improvement in breast pain, swelling and firmness. No adverse reactions were reported and researchers concluded that "Serrapeptidase is a safe and effective method for the treatment of breast engorgement".(7,8)
Post-operative Swelling
In a German study, patients who had ankle ligament surgery and were given serrapeptidase had a 50% reduction in swelling after 3 days, while patients in two control groups had no reduction in swelling. The serrapeptidase patients also recovered more rapidly than the controls, becoming pain-free by the 10th day.(9)
Other Conditions
In a 6-week study of 20 carpal tunnel syndrome patients, 65% showed significant clinical improvement supported by significant improvement in electrophysiological parameters.(10) In an Italian study of 20 patients with varicose veins, good to excellent improvement was reported in over 60% of the subjects taking serrapeptidase. Pain was reduced in 63% of cases, fluid buildup in 56%, and abnormal skin redness in 58%.(11)
References:
1. Mazzone A, et al. Evaluation of serratia peptidase in acute or chronic inflammation of otorhinolaryngology pathology: a multicentre, double-blind, randomized trial versus placebo. J Int Med Res. 1990; 18(5):379-88.
2. Tomoda K, and Miyatam K. Some information on the composition of trachael secretions before and after the administration of Danzen. Exper Ther. 1972; 477:9-16.
3. Marriott C. Modification in the rheological properties of mucus by drugs. Adv Exp Med Biol. 1982; 144:75-84.
4. Carratu L, et al. Physico-chemical and rheological research on mucolytic activity of serratio-peptidase in chronic broncho-pneumopathies. Therapeutic Res. Dec 1980; 937-951.
5. Nakamura S, et al. Effect of the proteolytic enzyme serrapeptase in patients with chronic airway disease. Respirology Vol 8 #3, Sept 2003, p.316-320 doi:10.1046/j.1440-1843.2003.00482.
6. Tachibana M, et al. A muti-centre, double-blind study of serrapeptase versus placebo in post-antrotomy buccal swelling. Pharmatherapeutica; 1984; 3(8); 526-30.
7. Kee WH, Tan SL, Lee V, Salmon YM. The treatment of breast engorgement with serrapeptase (Danzen): a randomized double-blind controlled trial. Singapore Med J. 1989;30(1):48-54.
8. Aso T et al. Breast engorgement and its treatment: Clinical effects of Danzen an anti-inflammatory enzyme preparation. The world of Obstetrics and Gynecology (Japanese). 1981; 33:371-9.
9. Esch, PM, et al. Reduction of post-operative swelling. Objective measurement of swelling of the upper ankle joint in treatment with serrapeptase – a prospective study. Fortschr Med. 1989 Feb 10; 107(4):67-8, 71-2.
10. Panagariya A, Sharma AK. A preliminary trial of serratiopeptidase in patients with carpal tunnel syndrome. J Assoc Physicians India; 1999; 47 (12); 1170-1172.
11. Minerva Cardioangiol, Vol. No. 10, October 1996: 515-24.