ACTA PHARMACEUTICA JUGOSLAVICA, cilt.41, sa.3, ss.211-216, 1991 (SCI-Expanded)
In this study the effects of Bay K 8644 a new Ca2+ channel activator, on agonist-induced contractions in guinea-pig urinary bladders were investigated. Histamine and serotonin (10(-9) - 10(-4) M) produced a dose-dependent contraction. Maximum contraction was obtained by 10(-5) M serotonin. Its value was 990.00 mg.