Last update Dec. 4, 2020

D06BB07; J05AX02


Safe substance and/or breastfeeding is the best option.

A mucopolysaccharidase present in various body fluids (saliva, breastmilk, tears) with antibacterial, antiviral and antifungal action (Giuffrida 2018, Lönnerdal 2003, Mata 1971).
It is a protein made up of approximately 130 amino acids.

Since the last update we have not found any published data in relation to breastfeeding.

Its high molecular weight makes its excretion in breastmilk highly unlikely.

Due to its protein nature, it is inactivated in the gastrointestinal tract, not being absorbed (practically nil oral bioavailability), which hinders or prevents the transfer to infant plasma from breastmilk, except in premature cases and the immediate neonatal period, when there may be increased intestinal permeability.


We do not have alternatives for D06BB07; J05AX02 since it is relatively safe.

Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

D06BB07; J05AX02 is Lysozyme Hydrochloride in ATC Code/s.

Is written in other languages:

D06BB07; J05AX02 is also known as


Main tradenames from several countries containing D06BB07; J05AX02 in its composition:


Variable Value Unit
Oral Bioavail. 0.1 %
Molecular weight 14.000 - 20.000 daltons


  1. Giuffrida MC, Cigliana G, Spoto G. Ultrasensitive detection of lysozyme in droplet-based microfluidic devices. Biosens Bioelectron. 2018 May 1;104:8-14. Abstract
  2. Lönnerdal B. Nutritional and physiologic significance of human milk proteins. Am J Clin Nutr. 2003 Jun;77(6):1537S-1543S. Review. Abstract
  3. Mata LJ, Wyatt RG. The uniqueness of human milk. Host resistance to infection. Am J Clin Nutr. 1971 Aug;24(8):976-86. Review. Abstract

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