LI Ji, LI Ling-jun, LOU Hua-wei. Intestinal Absorption Kinetics Study of Rhynchophylline and Isorhynchophylline of Tiangou Jiangya Capsules[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(6): 167-170.
LI Ji, LI Ling-jun, LOU Hua-wei. Intestinal Absorption Kinetics Study of Rhynchophylline and Isorhynchophylline of Tiangou Jiangya Capsules[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(6): 167-170.DOI:
Objective: To study in vivo intestinal absorption kinetics of rhynchophylline and isorhynchophylline of Tiangou Jiangya capsules. Method: HPLC method was used to determine the content of rhynchophylline
isorhynchophylline and Ultra-violet (UV) spectrophotometry was used to determine the content of phenol red in the rat in vivo intestinal perfusion tests. Result: The regression of rhynchophylline is Y=-0.331 7X-0.771 8(r=0.998 5)
Ka=0.331 7(h-1)
t1/2=2.09(h). The regression of isorhynchophylline is Y=-0.687 0X-0.150 4(r=0.985 2)
Ka=0.687 0(h-1)
t1/2=1.01(h). Conclusion: The absorption of rhynchophylline and isorhynchophylline of Tiangou Jiangya capsules in rat's intestine comply with the first-order kinetics process.