This invention relates to combinations of vasoactive substances which act at venous or arterial level with phosphodiesterase inhibitors including phosphodiesterase V, in particular: visnadin or esculoside; at least one compound selected from icarin or derivatives thereof or extracts containing it, Gingko biloba dimeric flavones either in the free form or complexed with phospholipids, amentoflavone; at least one compound selected from escin, escin beta-sitosterol complexed with phospholipids, sericoside, sericoside complexed with phospholipids or Centella asiatica extract in the free form or complexed with phospholipids. The formulations according to the invention are useful in reducing parmiculopathy and problems associated with venous insufficiency of the lower limbs.