Peripheral circulation improvers for ophthalmic tissues...

A - Human Necessities – 61 – K

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A61K 31/455 (2006.01) A61K 31/4422 (2006.01) C07D 211/90 (2006.01)

Patent

CA 2252962

Peripheral circulation improvers for ophthalmic tissues, particularly, blood flow improvers for optic disc, choroid or retina, containing dihydropyridines of general formula (I) or pharmaceutically acceptable salts thereof as the active ingredient (wherein R1 is nitrophenyl; and R2, R3 and R4 are each lower alkyl); and remedies for contraction of the visual field resulting from normal glaucoma, optic nerve disturbance, retinopathy and retinal degeneration, which are prepared by utilizing the activity of the above compounds.

L'invention concerne des agents améliorants la circulation périphérique pour tissus ophtalmiques, en particulier des agents améliorants le flux sanguin dans le disque optique, la choroïde ou la rétine, contenant des dihydropyridines de la formule générale (I) ou des sels pharmaceutiquement acceptables de celles-ci comme principe actif. Dans ladite formule (I), R?1¿ représente nitrophényle, et R?2¿, R?3¿ et R?4¿ représentent chacun alkyle inférieur. L'invention concerne également des remèdes permettant de soigner la réduction du champ visuel résultant du glaucome normal, de troubles du nerf optique, de la rétinopathie ou d'une dégénérescense rétinienne, remèdes avec lesquels on exploite l'activité des composés susmentionnés.

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