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Fenoterol 의 혈청 K+ 강하효과:경구 및 흡입투여의 효과
유세화,김열홍,유혜경,서순규 대한내과학회 1986 대한내과학회지 Vol.30 No.5
The systemic effect of inhalation of fenoterol, a β₂-agonist, especially the effect on plasma potassium was studied in four groups of four healthy young subjects. Group I received 3 times 1 puff inhalation(0.2 mg fenoterol/puff), group Ⅱ 3 times 2 Puffs, and group Ⅲ 3 times 4 puffs. Group Ⅳ took 1 tablet of fenoterol(2. 5 mg fencterol/tablet). Plasma potassium, sodium, chloride, calcium, glucose, pulse rate and mean arterial pressure were checked at 15-min intervals for 60 minutes in group I, Ⅱ, Ⅲ, and 30-min intervals for 120 minutes in group Ⅳ, Plasma potassium levels decreased in subjects who received fenoterol inhalation; the decrease was 0. 26±0.16(S.D.)mmol/L in group I, 0.73±0,47 mmol/L in group Ⅱ and 0.76±0.2.3 mmol/L in group g. In group Ⅳ plasma potassium levels were unchanged. Plasma glucose and pulse rate al o increased significantly after fenoterol inhalation. In conclusion, inhalation of fenoterol showed measurable systemic effects and especially induced hypokalemia may be dangerous in patients with cute asthmatic attack.