Research Article

Effects of Olopatadine Hydrochloride, a Histamine H 𝟏 Receptor Antagonist, on Histamine-Induced Skin Responses

Figure 2

Inhibitory effects of anti-histamines on VAS values of histamine-induced itching sensation after histamine iontophoresis ( = 10). Results are presented as mean ± SE. P <  .05, P <  .01, and P <  .001 (olopatadine versus placebo); P <  .05, P <   .01 (olopatadine versus fexofenadine).
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