Factors Influencing the Adoption of User-Administered Injectable Contraceptives in the United States
January 9, 2026
Brand Name :
Sotradecol, Trombovar
Synonyms :
sodium tetradecyl sulfate
Class :
Sclerosing Agents
Dosage Forms & Strengths
Injectable solution
1%
3%
Administer a test dose of 0.5 ml for several hours before treating with large doses
Administer dose of 0.5 to 2 ml intravenously in each vein also 1% solution for general use and 3% solution for large varicosities
For every treatment session it should not exceed 10 ml solution
Administration
Stop using if solution has particulate matter
For subcutaneous varicose veins use only 1% solution
Safety and efficacy not determined
Refer to adult dosing
Actions and Spectrum
The primary action involves its ability to cause irritation and inflammation of the inner lining of blood vessels particularly veins.
When injected into a varicose veins sodium tetradecyl sulfate induces a controlled chemical injury to the vessel wall.
Frequency not defined
Deep vein thrombosis
Pulmonary embolism
Cough
Immune hypersensitivity reaction
Anaphylaxis
Reversible hyperpigmentation of injection site
Injection site ulcer
Redness of conjunctiva
Nausea
Vomiting
Shortness of breath
Pruritus of face and extremities
Black Box Warning
None
Contraindication/Caution:
It is contraindicated with known allergies, blood clots or DVT, significant arterial disease, or localized skin conditions, ulcers, and wounds.
Pregnancy consideration:
Pregnancy category: C
Lactation: Excretion into human milk is unknown
Pregnancy Categories:
Pharmacology
Sodium tetradecyl sulfate when injected into a veins it disrupts endothelial lining of vein causing irritation and inflammation at the injection site.
Thrombosis caused by irritation of the vein’s inner lining cells leads to the blockage of the injected vein.
Pharmacodynamics
Inflammation leads to activation of clotting cascade and in formation of fibrin within the vein.
As fibrin accumulates then clots form the vein becomes fibrotic and scarred.
Pharmacokinetics
Absorption
It is not absorbed systemically due to being directed locally at site of injection.
Distribution
It does not distribute throughout the body.
Metabolism
Not extensively metabolized in body.
Excretion
N/A
Administration
sodium tetradecyl sulfate given as direct injection into the target veins.
Patient information leaflet
Generic Name: sodium tetradecyl sulfate
Why do we use sodium tetradecyl sulfate?
Sodium tetradecyl sulfate is a sclerosing agent that treats varicose veins and manages venous malformations achieving hemostasis in certain procedures and treats unsightly spider veins in cosmetic procedures.