European Medicines Agency (EMA) Assessment Reports (Historical): While not specifically for Flavodic Acid/Sodium Flavodate, EMA's assessments of related flavonoid drugs (like Diosmin, MPFF) provide context on the class, regulatory requirements, and evidence standards. These reports highlight the limited evidence for many older flavonoid preparations. (Search EMA website for specific products containing Diosmin/MPFF).
Pharmacopées (e.g., French Pharmacopoeia - Historical Editions): May have contained monographs for Sodium Flavodate or products containing it (e.g., Flavungor), providing basic chemical and pharmaceutical information. (Access requires historical archives).
Example (Illustrative, specific high-quality studies lacking): Boisseau, M. R., et al. (1995). Fibrinolysis and flavonoids. Biomedicine & Pharmacotherapy, 49(10), 453-458. (Discusses flavonoids in general, including potential mechanisms relevant to claimed effects of compounds like sodium flavodate, but not specific evidence for it).
Example (Mentioning Flavodate): Ramelet, A. A. (2001). Clinical benefits of Daflon 500 mg in the most severe stages of chronic venous insufficiency. Angiology, 52(Suppl 1), S49-S56. (Discusses MPFF, a different flavonoid fraction; sometimes older reviews might briefly mention sodium flavodate as part of the historical landscape but not endorse it).
Bergan, J. J., et al. (2006). Chronic venous disease. New England Journal of Medicine, 355(5), 488-498. (Provides overview of CVI treatment, unlikely to mention obsolete drugs like sodium flavodate, but establishes the standard of care).
Lyseng-Williamson, K. A., & Perry, C. M. (2003). Micronised purified flavonoid fraction: a review of its use in chronic venous insufficiency, venous ulcers and haemorrhoids. Drugs, 63(1), 71-100. (Reviews MPFF, the main flavonoid fraction with significant evidence; highlights the contrast with less well-studied agents like sodium flavodate).
French National Agency for Medicines and Health Products Safety (ANSM) - Historical Data: ANSM would have been responsible for the authorization and pharmacovigilance of Flavungor (sodium flavodate) in France prior to its discontinuation. Public assessment reports or withdrawal notices might exist in archives but are difficult to access and likely cite insufficient evidence or commercial reasons for withdrawal. (Search ANSM website archives if available).
Martindale: The Complete Drug Reference (Older Editions): Historical entries for "Sodium Flavodate" or "Flavodic Acid" would have summarized its claimed uses and known adverse effects based on the limited data available at the time. (Consult library archives of pre-2000s editions).
Nicolaides, A. N., et al. (2018). Management of chronic venous disorders of the lower limbs: Guidelines according to scientific evidence part I. International Angiology, 37(3), 181-254. (Current ESVS guidelines - no mention of sodium flavodate/flavodic acid, recommends other interventions).
Gloviczki, P., et al. (2011). The care of patients with varicose veins and associated chronic venous diseases: Clinical practice guidelines of the Society for Vascular Surgery and the American Venous Forum. Journal of Vascular Surgery, 53(5 Suppl), 2S-48S. (Current AVF guidelines - no mention of sodium flavodate/flavodic acid).