商品名：Fitergol
Blocks serotonin and dopamine receptors and is an alpha- adrenergic antagonist, primarily acting through alpha-1 adrenoceptors. Its reported effects are to promote cerebral vasodilation, thereby improving cerebral oxygenation, and to have a neuroprotective action.
Used to improve ageing-related disorders in dogs, particularly those of behavioural origin: e.g. diminished vigour and vigilance fatigue, sleep disorders, and psychomotor disturbances (such as episodes of ataxia). However, clinically apparent benefits of its pharmacological effects have not been published. Specific age-related diseases should receive appropriate treatment. Demonstrates a wide safety margin: administration of up to 90 times the normal recommended dose in dogs for 6 months has pro
劑量數字暫停提供：VetPro 的劑量改依 DRUGAPI 藥物資料庫對外的內容，DRUGAPI 目前不提供可直接計算的劑量。下方列出 DRUGAPI 的審查結論與劑量審查引用的來源；計算機可手動輸入劑量換算。
犬用 Fitergol 許可已於 2013 年失效；犬療效研究小且結果不一致，0.5 mg/kg q24h 只是研究 exposure、不是現行核准劑量，0.25 mg/kg 下限無支持，亦未確認貓方案。
DRUGAPI 劑量審查引用的獸醫官方標示（各標示只適用於其產品、物種與法域，不可互換）