Sodium Tetradecyl Sulfate is a detergent sclerosant with antithrombotic effects and commonly used for the treatment of varicose veins.

Proteins C, S and antithrombin (AT) were assayed in normal plasma treated with increasing concentrations of Sodium Tetradecyl Sulfate. High concentration (>0.6%) Sodium Tetradecyl Sulfate significantly destroyed proteins C, S and AT. Sodium Tetradecyl Sulfate potentiated the anticoagulant effect of APC. Sodium Tetradecyl Sulfate mimicked AT and demonstrated significant anti-Xa and anti-IIa activity. STS demonstrated a weak anticoagulant profile to heparin. It also significantly potentiated the anticoagulant effect of heparin[2].

i.v. + p.v. injection of Sodium Tetradecyl Sulfate and hydroxy polyethoxy dodecan provided a high degree of efficacy as regards vein occlusion. On the other hand, i.v. + p.v. injection induced a severe inflammation and necrosis of the tissues surrounding the sclerosed vein[3].