Diosmin

Diosmin

Clinical data
AHFS/Drugs.com	International Drug Names
Routes of administration	oral
ATC code	C05CA03 (WHO)
Identifiers
IUPAC name 5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)- 7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy -6-[[(2R,3R,4R,5R,6S) -3,4,5-trihydroxy-6-methyloxan-2-yl]oxymethyl]oxan-2-yl]oxychromen-4-one
CAS Number	520-27-4 N
PubChem CID	5281613
DrugBank	DB08995 N
ChemSpider	4444932 Y
UNII	7QM776WJ5N
KEGG	D07858 Y
ChEBI	CHEBI:4631 N
ChEMBL	CHEMBL231884 Y
ECHA InfoCard	100.007.537
Chemical and physical data
Formula	C28H32O15
Molar mass	608.545 g/mol
3D model (Jmol)	Interactive image
SMILES O=C\4c5c(O)cc(O[C@@H]2O[C@H](CO[C@@H]1O[C@H]([C@H](O)[C@@H](O)[C@H]1O)C)[C@@H](O)[C@H](O)[C@H]2O)cc5O/C(c3ccc(OC)c(O)c3)=C/4
InChI InChI=1S/C28H32O15/c1-10-21(32)23(34)25(36)27(40-10)39-9-19-22(33)24(35)26(37)28(43-19)41-12-6-14(30)20-15(31)8-17(42-18(20)7-12)11-3-4-16(38-2)13(29)5-11/h3-8,10,19,21-30,32-37H,9H2,1-2H3/t10-,19+,21-,22+,23+,24-,25+,26+,27+,28+/m0/s1 Y Key:GZSOSUNBTXMUFQ-YFAPSIMESA-N Y
NY (what is this?)

Diosmin is a flavone, a member of the flavonoid family. Diosmin aglycone is diosmetin. It can be found in Teucrium gnaphalodes, a plant endemic to the Iberian Peninsula.

Diosmin is a semisynthetic flavonoid molecule derived from citrus d (modified hesperidin). It is an oral phlebotropic drug used in the treatment of venous disease, i.e., chronic venous insufficiency (CVI) including spider and varicose veins, leg swelling (edema), stasis dermatitis and venous ulcers. It is also used as a stand-alone or surgical adjunctive therapy in hemorrhoidal disease (HD).

There are extensive clinical trials that show diosmin improves all stages of venous disease including venous ulcers and improves quality of life. There are no prospective studies in arterial disease.

Diosmin is currently a prescription medication in some European countries (under the Dio-PP, Venotec, Daflon etc. tradenames), and is sold as a nutritional supplement in the United States.

Diosmin has been found to be effective in mitigating hyperglycemia in diabetic rats. It is also speculated that diosmin might have potential in the treatment of neurodegenerative diseases, such as Alzheimer's disease, and its anti-inflammatory and anti-apoptotic activity has been demonstrated in neuronal cells, in vitro.

Diosmin prolongs the vasoconstrictor effect of norepinephrine on the vein wall, increasing venous tone, and therefore reducing venous capacitance, distensibility, and stasis. This increases the venous return and reduces venous hyperpressure present in patients suffering from CVI.

Diosmin improves lymphatic drainage by increasing the frequency and intensity of lymphatic contractions, and by increasing the total number of functional lymphatic capillaries. Furthermore, diosmin with hesperidine decreases the diameter of lymphatic capillaries and the intralymphatic pressure.