Diosmin

Diosmin is a naturally occurring flavonoid that is found mainly in citrus fruits and belongs to the group of bioflavonoids. It is a derivative of diosmetin that is significant above all as a semi-synthetically produced active compound in phytotherapy and vein medicine. Diosmin has already been used medicinally in Europe since the 1960s, in particular for the treatment of venous disorders. It is often processed together with hesperidin – another citrus flavonoid – and ranks among the best-studied herbal vein therapeutics. Pharmaceutically, Diosmin is usually micronized, that is, processed into a particularly fine form, in order to increase its bioavailability in the body. The substance has no aromatic or traditional use as a medicinal plant but is instead extracted and processed specifically for its vasoactive properties – for example in tablets or combination preparations for varicose veins, spider veins, or hemorrhoids.

What benefits does Diosmin offer for health?** Diosmin is valued primarily for its effect on the venous system. Beyond that, however, the body of studies is also relatively extensive and provides a whole range of different indications of clinically relevant effects:

  • Antioxidant effect: As a flavonoid, Diosmin has an antioxidant action and can help protect cells from oxidative stress (1,2,3).
  • Anti-inflammatory properties: In various studies, Diosmin showed a significantly inhibiting effect on the activity of certain inflammatory mediators such as prostaglandins and reduced leukocyte adhesion to the vessel walls (1,3).
  • Antidiabetic effects: Studies point to a positive effect in the context of diabetic conditions (1,3,4).
  • Cardiovascular effects: In studies, Diosmin improved venous return, strengthened the capillaries, and reduced swelling (1,2,3,4).
  • Hemorrhoid treatment: In combination with hesperidin, Diosmin is also used successfully for acute and chronic hemorrhoidal conditions (3,4,5).
  • Anticarcinogenic effect: Various studies point to an anticarcinogenic effect that could be associated with the active compound (3,4,6).
  • Neuroprotective effects: Some studies suggest that Diosmin could have neuroprotective properties that may be of benefit in conditions such as traumatic brain injuries (7).

How does Diosmin work in the body?

Diosmin unfolds its effect above all in the area of the venous system and the microcirculation. It supports the normal function of the veins (venotonic), reduces the permeability of capillaries (capillary-sealing), and improves lymph flow (4). In addition, it has an anti-inflammatory and antioxidant action, which further supports its use for chronic venous disorders and hemorrhoids.

Are there risks or side effects?

  • Well tolerated: Overall, Diosmin is considered very well tolerated. Side effects are rare and mostly mild – for example digestive complaints, headaches, or skin reactions.
  • Not for pregnant women without medical consultation: Although no direct risks are known, intake during pregnancy is recommended only under medical supervision.

Conclusion Diosmin is a plant flavonoid with benefits for vein and capillary health documented in studies. In modern phytotherapy, it is used successfully for chronic venous insufficiency, for hemorrhoids, and for general improvement of blood circulation. The scientific evidence for its effectiveness is comparatively strong, its tolerability high – which makes Diosmin a proven remedy in naturopathically oriented vascular therapy. Nevertheless, more research is necessary to fully understand all mechanisms of action.

Sources:

  1. Rajasekar, M., Baskaran, P., Mary, J., Sivakumar, M., & Selvam, M. (2024). Revisiting diosmin for their potential biological properties and applications. Carbohydrate Polymer Technologies and Applications, 7, 100419. https://doi.org/10.1016/j.carpta.2023.100419
  2. Feldo, M., Woźniak, M., Wójciak-Kosior, M., Sowa, I., Kot-Waśik, A., Aszyk, J., Bogucki, J., Zubilewicz, T., & Bogucka-Kocka, A. (2018). Influence of Diosmin Treatment on the Level of Oxidative Stress Markers in Patients with Chronic Venous Insufficiency. Oxidative medicine and cellular longevity, 2018, 2561705. https://doi.org/10.1155/2018/2561705
  3. Mustafa, S., Akbar, M., Khan, M. A., Sunita, K., Parveen, S., Pawar, J. S., Massey, S., Agarwal, N. R., & Husain, S. A. (2022). Plant metabolite diosmin as the therapeutic agent in human diseases. Current Research in Pharmacology and Drug Discovery, 3, 100122. https://doi.org/10.1016/j.crphar.2022.100122
  4. Huwait, E., & Mobashir, M. (2022). Potential and Therapeutic Roles of Diosmin in Human Diseases. Biomedicines, 10(5), 1076. https://doi.org/10.3390/biomedicines10051076
  5. Picciariello A, Rinaldi M, Grossi U, Verre L, De Fazio M, Dezi A, Tomasicchio G, Altomare Donato F and Gallo G (2022) Management and Treatment of External Hemorrhoidal Thrombosis. Front. Surg. 9:898850. doi: 10.3389/fsurg.2022.898850
  6. Rahman, L., Talha Khalil, A., Ahsan Shahid, S., Shinwari, Z. K., Almarhoon, Z. M., Alalmaie, A., Sharifi-Rad, J., & Calina, D. (2024). Diosmin: A promising