Last update April 2, 2015


Very Low Risk

Safe. Compatible. Minimal risk for breastfeeding and infant.

It increases renal excretion of Uric acid and decreases elimination of many drug by the kidneys, among them beta-lactam antibiotics, with augmented plasma levels and effectiveness.

Excretion into breast milk is clinically non-significant, with no problems observed among breastfed infants from treated mothers that could be attributed to Probenecid (reportedly, one case of self-limited diarrhea occurred in a child whose mother was taking a Cephalosporin together with Probenecid).


We do not have alternatives for Probenecid since it is relatively safe.

Suggestions made at e-lactancia are done by APILAM team, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it.

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

Probenecid is also known as


Probenecid belongs to this group or family:


Main tradenames from several countries containing Probenecid in its composition:


Variable Value Unit
Oral Bioavail. 100 %
Molecular weight 285 daltons
Protein Binding 85 - 95 %
Tmax 3 - 4 hours
T1/2 8,5 hours
M/P ratio 0,03 -
Theoretical Dose 0,15 mg/Kg/d
Relative Dose 0,45 %


  1. Ilett KF, Hackett LP, Ingle B, Bretz PJ. Transfer of probenecid and cephalexin into breast milk. Ann Pharmacother. 2006 Abstract
  2. Emanuelsson BM, Beermann B, Paalzow LK. Non-linear elimination and protein binding of probenecid. Eur J Clin Pharmacol. 1987 Abstract
  3. Selen A, Amidon GL, Welling PG. Pharmacokinetics of probenecid following oral doses to human volunteers. J Pharm Sci. 1982 Abstract

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