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CARDIOVASCULAR SYSTEM › VASOPROTECTIVES › CAPILLARY STABILIZING AGENTS › Bioflavonoids
diosmin
C05CA03
Forms & Strengths
- Oral tablets: 500 mg, 600 mg
- Micronized purified flavonoid fraction (MPFF): 90% diosmin, 10% hesperidin (450 mg / 50 mg or 540 mg / 60 mg)
Adult Dosing
- Chronic venous insufficiency: 500 mg twice daily (or 1000 mg once daily)
- Acute hemorrhoidal attack: 1000 mg 3 times daily for 4 days, then 1000 mg twice daily for 3 days
- Chronic hemorrhoids: 500 mg twice daily
Pediatric Dosing
- Safety and efficacy not established in pediatric patients (<18 years)
Indications
- Chronic venous insufficiency (CVI) of the lower limbs (e.g., pain, leg cramps, edema)
- Acute and chronic hemorrhoidal disease
Mechanism of Action
- Venoactive agent that increases venous tone by prolonging the vasoconstrictor effect of norepinephrine on the vessel wall
- Reduces venous distensibility and venous stasis
- Protects microcirculation by reducing capillary permeability and increasing lymphatic drainage
- Exerts anti-inflammatory effects by inhibiting leukocyte adhesion, migration, and activation
Contraindications
- Hypersensitivity to diosmin, hesperidin, or any components of the formulation
- Severe renal or hepatic impairment (lack of safety data)
Adverse Reactions
- Gastrointestinal: mild diarrhea, nausea, dyspepsia, abdominal pain
- Nervous system: headache, dizziness, vertigo
- Dermatological: rash, pruritus, urticaria
Drug Interactions
- Metronidazole: may decrease metabolism or increase plasma levels (theoretical)
- CYP3A4 substrates: mild inhibitor potential, though clinical significance is generally low at standard doses
Curated Content: Needs Vetting Before Put to Clinical Use