Varithena™ is a prescription medicine used to treat varicose veins caused by problems with the great saphenous vein (GSV) and its related veins. It is delivered through the placement of ultrasound-guided, small IVs and injected under ultrasound guidance for targeting of the abnormal veins. The entire procedure takes about 30 minutes, and you can return to normal activities immediately. The lack of heat leads to less post-procedure discomfort and less potential risk to surrounding nerves.