Comparison of arterial blood pressure and quality of induction and recovery in horses anesthetized with diazepam or guaifenesin co-induction combined with xylazine and ketamine and maintained on isoflurane.

= 0.004) arterial pressures decreased significantly at 20, 30, and 40 min in Group D. Dose of dobutamine and/or phenylephrine was similar between groups. Sedation, induction, and recovery scores were similar. Induction scores were good to excellent [both groups: 0.5 (0, 2); median (range)]. In conclusion, guaifenesin and diazepam at the doses used in this study produced similar effects on arterial blood pressure and on the quality of induction and recovery.