Polidocanol is a local anaesthetic and antipruritic component of ointments and bath additives. It relieves itching caused by eczema and dry skin.[2] It has also been used to treat varicose veins,[3] hemangiomas, and vascular malformations.[4] It is formed by the ethoxylationofdodecanol.
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| Routes of administration | topical, subcutaneous injection |
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| ECHA InfoCard | 100.019.351  |
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| Formula | C30H62O10 |
| Molar mass | 582.816 g·mol−1 |
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Polidocanol is also used as a sclerosant, an irritant injected to treat varicose veins, under the trade names Asclera, Aethoxysklerol[5] and Varithena.[6] Polidocanol causes fibrosis inside varicose veins, occluding the lumen of the vessel, and reducing the appearance of the varicosity.
The FDA has approved polidocanol injections for the treatment of small varicose (less than 1 mm in diameter) and reticular veins (1 to 3 mm in diameter). Polidocanol works by damaging the cell lining of blood vessels, causing them to close and eventually be replaced by other types of tissue.[7][8] Polidocanol in the form of Varithena injected in the greater saphenous vein can cause the eruption of varicose and spider veins throughout the lower leg. This procedure should be done with caution and with the knowledge that the appearance of the leg may be forever compromised.
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