Last update June 14, 2025

Rifamycin Sodium

Compatible

Safe product and/or breastfeeding is the best option.

An antibacterial agent that is not absorbed when taken orally, used in the treatment of traveller's diarrhoea and topically in eye and ear infections. Intramuscular and intravenous formulations are also available.

At the date of the last update, no data on its excretion in breast milk had been published.

Its pharmacokinetic data (large volume of distribution, moderately high molecular weight, high percentage of plasma protein binding and, above all, its zero oral bioavailability) make it difficult or impossible for it to pass into breast milk in clinically significant amounts.

In addition, its zero oral bioavailability prevents it from passing into the infant's plasma from ingested breast milk.

Alternatives

We do not have alternatives for Rifamycin Sodium 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

Rifamycin Sodium in other languages or writings:

Tradenames

Main tradenames from several countries containing Rifamycin Sodium in its composition:

Pharmacokinetics

Variable Value Unit
Oral Bioavail. < 0.1 %
Molecular weight 720 daltons
Protein Binding 80 - 95 %
VD 1.46 l/Kg
pKa 7.09 -
1 - 3 hours

References

  1. AEMPS. Rifamicina. Ficha técnica. 2022 Full text (in our servers)
  2. FDA. Rifamycin. Drug Summary. 2018 Full text (in our servers)

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