商品名：Periactin
Phenothiazine with antihistamine and antiserotonin properties. Used as appetite stimulant (probably by altering serotonin activity in appetite center).
A common use of cyproheptadine is to stimulate the appetite in sick animals, especially cats; although, evidence based on controlled studies to demonstrate efficacy is not available. Cyproheptadine is used in some cats for treatment of feline asthma if serotonin is considered a component of the airway inflammation. However, in cats Cyproheptadine Hydrochloride 189 C with hyper-responsive airways, cyproheptadine failed to reduce eosinophilic inflammation (8 mg per cat q12h). It has been used in some instances for treating inappropriate urination (urine spraying) in cats. Cyproheptadine has been
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。
確認使用的是賽庚啶游離鹼、鹽酸鹽或鹽酸鹽倍半水合物，並核對成品含量、鹼基當量、共成分與來源 確認物種、體重、食慾不振與體重下降的病因、營養狀態、肝腎功能、眼壓、泌尿或腸胃阻塞風險、心血管與神經病史 依目的區分食慾刺激、氣道疾病、過敏或搔癢、以及疑似血清素毒性；不可跨情境套用研究數字 建立營養目標、反應終點、停藥門檻、不良反應監測與緊急救援計畫 核對所有中樞抑制、抗膽鹼、單胺氧化酶抑制與血清素相關暴露，且不得以自動配對取代臨床判斷
依出現頻率分組；嚴重副作用獨立列出，臨床上需立即辨識。