Figure 6From: Evaluation of gut modulatory and bronchodilator activities of Amaranthus spinosus Linn. Concentration-dependent relaxation effects of (a) the crude extract of A. spinosus (As.Cr) and (b) diltiazem on K + and CCh-induced contractions in isolated rabbit trachea. Effect of As.Cr on CCh-induced contraction is recorded in the presence and absence of propranolol (prop). Values are shown as mean ± S.E.M., n = 3–6.Back to article page