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Recommended concentration of foam sclerosants
| Indication | Polidocanol concentration (%) |
|---|---|
| Spider veins | Up to 0.5 |
| Reticular varices | Up to 1.0 |
| Varicose tributary veins | Up to 2.0 |
| Great saphenous vein, small saphenous vein | |
| < 4 mm | 1.0 |
| ≥ 4 to ≤ 8 mm | 1.0–3.0 |
| > 8 mm | 3.0 |
| Incompetent perforator veins | 1.0–3.0 |
| Recurrent varicose veins | 1.0–3.0 |
| Venous malformations | 1.0–3.0 |
