他达那非的平均起效时间是16-30分钟，服用后2-8小时血浆浓度达峰值

他达那非的平均起效时间是16-30分钟，服用后2-8小时血浆浓度达峰值，半衰期44—112小时，肾功能不全时半衰期延长，甚至5天后，仍可在血浆中测得他达那非的浓度。临床报告显示服用西力士后有效率达到83%，报告服用量为20～40毫克。其优点是副作用小，持续时间长，可在两三天左右均有明显效果。

結果 (英文) 1:

He reached the non-average onset time was 16-30 minutes, take 2-8 hours after peak plasma concentrations, half-life of 44-112 hour, renal insufficiency half-extended, even after 5 days, still can be measured in plasma na concentration of non-he. Clinical report efficiency after taking cialis 83%, reported doses of 20~40 mg. The advantage of fewer side effects, long duration, there were significant effects can be in two or three days.

結果 (英文) 3:

The mean onset time of tadalafil is 16-30 minutes, after taking 2-8 hours plasma concentration reached its peak, with a half-life of 44 - 112 hours, renal insufficiency when prolonged half-life, even after 5 days still in plasma measured concentrations of tadalafil. The clinical report shows that after taking Cialis efficiency reached 83%, the report dose is 20 to 40 mg. Its advantages are the side effects of small, long duration, can be in the two or three days have obvious effect.