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Page 10 of 13                                                                                 Smetanina et al. Vessel Plus 2021;5:19   https://dx.doi.org/10.20517/2574-1209.2021.17



                              Calcium dobesilate   Dioxybenzene derivative    Doxium (calcium dobesylate) [Serbia, Russia], Evadol and Proxacin   Reduces leg (o)edema; improves CVD symptoms.   [47,48]
                              [A]                (synthetic drug)             [Peru], Danium [Czech Republic], Calcium dobesilate Galena
                                                                              [Poland]

                              III. Other venoactive drugs
                                                                                                              ®
                              Sulodexide         Porcine-derived extracts of   Vessel [Italy], Aterina [Spain], Vessel  Due F [Russia and all over the  Reduces peripheral venous pressure, improves both objective   [44,68-70]
                                                 intestinal mucosa (two       world]                                                      and subjective CVD symptoms and QoL, improves ulcer
                                                 glycosaminoglycans: 80% of                                                               healing, prevents recurrent venous thromboembolism
                                                 fast-moving heparin and 20%
                                                 dermatan sulfate)
                              Gotu Kola (Centella  Saponosides                Madecassol [Greece, Portugal, Turkey], Centellase [Italy]   Stimulates collagen production, reduces swelling and improves  [71]
                              asiatica)                                                                                                   circulation; is used to treat venous insufficiency and heal
                                                                                                                                          wounds

                              §                                               [47]
                              Grade of Recommendations (according to Ramelet et al.  ) depends on the conduction of the Randomized Controlled Trial (RCT): (a) RCT with large sample sizes, valid meta-analyses (Grade A); (b) RCT with
                                                                                                   †                                                                                                              ‡
                              small sample size (Grade B); and (c) other controlled trials, no RCTs (Grade C).  Esculin is a coumarin glycoside from the leaves and bark of horse chestnut (glycone - glucose, aglycone - 6,7-dioxycoumarin).

                              Heptaminol hydrochloride tones up varicose veins and has a cardio-stimulating effect.  Some venoconstrictor/venotonic only drugs [such as α-adrenergic agonists fentanyl (Ethylephrine; Actiq, Duragesic,
                              Sublimaze) and midodrine [Gutron; Orvaten, ProAmatine]; dihydrogenated ergot alkaloids (Dihydroergotoxin, Dihydroergotamine, Dihydroergocriptine, Vazobral)] were not included in this table due to their
                                                        *
                              irrelevance for CVD treatment.  CVD: Chronic venous disease.  QoL: quality of life.  CVI: chronic venous insufficiency.


                              some miracle remedy will be invented, even if not universal, but which will really be able to help patients.



                              DECLARATIONS

                              Acknowledgments
                              The authors are grateful to the native English speakers Holly Jacob (Texas A&M University, USA) and Christine Tierney (Houston Community College, USA)

                              for grammar checking assistance and thorough text revision.


                              Authors’ contributions
                              Made substantial contributions to conception and design of the study: Smetanina MA, Shevela AI, Gavrilov KA, Filipenko ML

                              Performed literature analysis and writing the manuscript: Smetanina MA
                              Helped with data interpretation relating to clinical part: Shevela AI, Gavrilov KA
                              Helped with data acquisition, as well as provided administrative, technical, and material support: Filipenko ML



                              Availability of data and materials
                              Not applicable.
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