Fig. 2

Signs indicative for nausea in the course of the study period (T0 and T2). Scores (0–5) for the five other signs indicative for nausea are shown in 11 dogs at time points T0 (before ondansetron) and T2 (2 h after ondansetron), respectively. Bars represent the median scores and error bars represent the interquartile ranges. Significant decreases of scores after ondansetron treatment are indicated by asterisks with p = 0.0078 for salivation, p = 0.0078 for lip licking, p = 0.0039 for restlessness, and p = 0.0078 for lethargy. No significant differences were found in terms of vocalisation (p > 0.9999) between both time points. Wilcoxon signed-rank test was used for analysis