Last update Jan. 9, 2023

Sodium Tetradecyl Sulfate

Low Risk

Possibly safe. Probably compatible. Mild risk possible. Follow up recommended. Read the Comment.

Anionic tensioactive substance with esclerosing properties. Structurally similar to sodium lauryl sulfate. It is used in the treatment of varicose veins. Intravenous administration.

At the date of the last update we did not find any published data on its excretion in breast milk.

Like others sclerosing products used to treat varices it does not trespass into the blood stream in significative amounts nor the breast milk when applied properly.

Some authors advise waiting to breastfeed "a few hours" after the procedure. (Hale)


  • Macrogol Lauril Ether (Possibly safe. Probably compatible. Mild risk possible. Follow up recommended. Read the Comment.)

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

Sodium Tetradecyl Sulfate in other languages or writings:


Sodium Tetradecyl Sulfate belongs to this group or family:


Main tradenames from several countries containing Sodium Tetradecyl Sulfate in its composition:


Variable Value Unit
Molecular weight 316 daltons
pKa -1.1 -


  1. Hale TW. Medications & Mothers' Milk. 1991- . Springer Publishing Company. Available from Consulted on April 10, 2024 Full text (link to original source)
  2. AEMPS. Tetradecilsulfato de sodio Ficha técnica. 2021 Full text (in our servers)

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