Antihistamine
作用是收乾鼻水、通鼻塞。此外,亦有抗敏感作用
此類藥物可引起睡意、口渴、及胃部不適等副作用。所以應多喝開水及於飯後服藥。
同時,更切忌飲酒,及應避免駕駛或進行危險性工作;亦不可同時服用安眠藥、鎮靜劑或解痙藥。
1. Montelukast
indications: Chronic asthma, Allergic rhinitis, Prophylaxis of exercise-induced asthma
uses: 10mg /day
Side effect: headache, stomach pain, dizzy, Behavioural changes (e.g. agitation, anxiety, depression)
** Nx: no driving, monitor behavior change**

2. Fexofenadine (Telfast)退敏快
indications: allergic rhinitis
dosage: 180mg/day
Side effect: headahe, dizzy, dry mouth
** 不要與胃藥同用**

3. Cetirizine (zyrtec) 治敏速
OTC (used as systemic antihistamines)
indications: symptomatic treatment of seasonal & perennial allergic rhinitis
鼻敏感(鼻痕、鼻水、噴嚏)、皮膚敏感(紅點、紅腫、痕癢)、過敏導致的眼部瘙癢、流鼻水
dosage: 10mg/ day
side effect: headache, dry mouth, fatigue,

4. Levocetirizine (xyzal, lisinex)
indications: Seasonal allergic rhinitis, hives
dosage:2.5-5mg/day
side effect: drowsiness, tireness, dry mouth
Nx: not for renal/ hepatic impairment
清水整粒服

5. Promathazine
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