Effects of trihexyphenidyl on basilar artery of rabbits and cerebrovascular circulation of rats
Zhang, G.Q.; Qi, M.; Ke, J.; Zhang, Y.G.
Zhongguo Yao Li Xue Bao 11(4): 308-310
1990
ISSN/ISBN: 0253-9756 PMID: 2104482 Document Number: 348321
Trihexyphenidyl (Tri) inhibited the contraction of rabbit basilar artery due to high K+ (45.6 mmol/L). IC50 was 2.9 .+-. 0.7 .mu.mol/L. The contractions of basilar and mesenteric arteries due to calcium and those of basilar artery and saphenous vein due to serotonin were noncompetitively. Tri inhibited myogenic activities of the portal vein strips of rats and increased the normal cerebral blood flow of rats to 19 .+-. 7 ml/(min.cntdot.100 g).