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  Indian J Med Microbiol
 

Figure 4: Effects of betahistine on 10− 6 M methacholine-induced contraction (contraction area was calculated at 100% with no addition of betahistine) of rat trachea. The inhibition of contraction was statistically significant at 10− 4 M as compared with that of the control (P < 0.01). The results are represented as mean ± SD (n = 6). SD: Standard deviation

Figure 4: Effects of betahistine on 10<sup>− 6</sup> M methacholine-induced contraction (contraction area was calculated at 100% with no addition of betahistine) of rat trachea. The inhibition of contraction was statistically significant at 10<sup>− 4</sup> M as compared with that of the control (<i>P</i> < 0.01). The results are represented as mean ± SD (<i>n</i> = 6). SD: Standard deviation