原來你係睇mechanism of action 嗰part
咁我都睇過吓其他reference (E.g. Lexicomp, Martindale, Local/FDA/UK Package Insert) 講mechanism of action/pharmacology
我真係搵唔到有一個reference 話drying nasal secretion, relieve runny nose, reduce nasal discharge 之類嘅野
咁我會懷疑你呢到drying 個意思其實係講緊通左鼻塞,容易吸返d鼻水入口腔或者呻出黎,變相drying the nose
如果你話通鼻塞之後,容易呻出黎,我都仲接受到,但係你話收鼻水,我就諗唔明點樣收縮血管導致收鼻水,希望有更詳盡解釋。

