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Difrarel is a pharmaceutical product containing procyanidolic oligomers (OPCs), which are natural plant-derived compounds known for their antioxidant and vasoprotective properties. It is primarily indicated for the treatment of microvascular complications, specifically diabetic retinopathy. The drug works by increasing capillary resistance and decreasing permeability, thereby protecting the retinal vasculature from damage associated with chronic hyperglycemia and oxidative stress. In the Chinese market, it is distributed by Huizhou Baijirui, which serves as an agency for the original French manufacturer, Laboratoires Théa.
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