Varithena™ Varithena™ is a propriety micro foam sclerosant used to treat varicose veins. Approved by the FDA in 2013, Varithena™ is injected into damaged veins under the guidance of ultrasound, which causes the vein to spasm and close. Allowing blood to flow through other healthier veins. It is a minimally invasive procedure that is quick and nearly painless. There is no need for incisions or stitches and treatment is usually less than an hour. For most people, Varithena™ improves both physical symptoms related to their varicose veins and their appearance. Varithena™ is covered by most Medicare and insurance plans.