Phentolamine
生产企业：Novalar pharmaceuticals inc, Bedford laboratories div ben venue laboratories inc，另有 6 家
Phentolamine is an alpha-adrenergic blocker used to treat hypertensive episodes, diagnose pheochromocytoma, treat norepinephrine administration site reactions, and reverse soft tissue anesthesia and mydriasis.
Phentolamine is an alpha-adrenergic blocker used to treat hypertensive episodes, diagnose pheochromocytoma, treat norepinephrine administration site reactions, and reverse soft tissue anesthesia and mydriasis.
Phentolamine is a reversible, competitive antagonist at alpha-1 and alpha-2 adrenergic receptors. It causes vasodilation of vascular smooth muscles. Pupil dilation is primarily controlled by the radial iris dilator muscles surrounding the pupil, which are activated by the alpha-1 adrenergic receptors. Phentolamine reversibly binds to these receptors and reduces pupil diameter. By blocking alpha-1 adrenergic receptors, phentolamine can also be used to reverse mydriasis induced by muscarinic antagonists.
1.用于预防和治疗嗜铬细胞瘤所致的高血压发作，包括手术切除时出现的阵发性高血压，也可根据血压对本品的反应用于协助诊断嗜铬细胞瘤； 2.治疗左心衰竭； 3.治疗去甲肾上腺素、去氧肾上腺素、间羟胺等静脉给药外溢，用于防止皮肤坏死； 4.临床还用于治疗男性勃起功能障碍（ED）。最新研究表明，本品与罂粟碱、前列地尔三联用药，可降低引起平滑肌收缩的交感神经张力，使阴茎动脉平滑肌松弛，增加阴茎动脉血流，有利勃起。
共 6 项相关疾病
每项发明一条，涵盖美国、欧洲、PCT 与中国的同族专利。
