Antihypertensive effect and pharmacokinetics of nitrendipine in children.

Antihypertensive effect and pharmacokinetics of nitrendipine in children.
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尼群地平儿童降压作用及药代动力学。

DOI:
10.1016/s0022-3476(05)83394-3
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发表时间:
1991
期刊:
The Journal of pediatrics
影响因子:
--
通讯作者:
Sinaiko,AR
Sinaiko,AR
中科院分区:
--
文献类型:
--
作者:
Wells,TG;Sinaiko,AR

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应用新型钙通道拮抗剂尼群地平治疗儿童重症高血压25例,年龄6个月~17岁。24小时后收缩压和舒张压从148±2/99±2 mm Hg降至128±4/77±3 mm Hg,2周后降至121±2/75±2 mm Hg。继续治疗后,没有观察到收缩压或舒张压的进一步下降。短暂性反射性心动过速发生在治疗的第一周。其他不良反应也不常见,包括头痛、潮红、心悸和浮肿。13名儿童口服剂量为0.56±0.04 mg/kg后,进行稳态药动学参数测定。虽然不能确定绝对口服血药浓度,但对血药浓度-时间曲线下面积、表观峰值血药浓度和出现峰值血药浓度的表观时间的估计表明,吸收速率和口服血药利用度都是可变的。尼群地平与食物联合给药可降低吸收率,并可能降低口服血药利用度。未观察到尼群地平的表观血浆消除半衰期与年龄之间的关系。尼群地平0.25~0.5 mg/kg,每6~12小时口服一次,是治疗婴幼儿难治性高血压的一种安全有效的方法。
Nitrendipine, a new calcium-channel antagonist, was used to treat 25 children (aged 6 months to 17 years) with severe hypertension. Systolic and diastolic blood pressures (mean±SEM) fell from 148±2/99±2 mm Hg to 128±4/77±3 mm Hg after 24 hours and to 121±2/75±2 mm Hg after 2 weeks. No further reductions in systolic or diastolic blood pressure were observed after continued therapy. Transient reflex tachycardia occurred during the first week of therapy. Other adverse effects were uncommon and included headaches, flushing, palpitations, and edema. Pharmacokinetic parameters were estimated at steady state after an oral dose of 0.56±0.04 mg/kg in 13 children. Although absolute oral bloavailability could not be determined, estimates of the area under the plasma concentration versus time curve, the apparent peak serum concentration, and the apparent time at which the peak serum concentration occurred indicated that both the rate of absorption and oral bloavailability are variable. Coadministration of nitrendipine with food decreased the rate of absorption and may have reduced oral bloavailability. A relationship between age and the apparent plasma elimination half-life of nitrendipine was not observed. Nitrendipine, 0.25 to 0.5 mg/kg per dose administered orally every 6 to 12 hours, appeared to be an effective and safe treatment for resistant hypertension in infants and children.
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DOI: 10.1016/0304-4165(83)90284-2
发表时间: 1983
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影响因子: --
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