Hello,20 It sounds like the E2809CjuiceE2809D that was given preoperatively to your child was an anti anxiety medication called Versed Midazolam. This is usually given preoperatively to pediatric patients to alleviate the anxiety that comes with being in an often cold and unfamiliar medical setting and to offset the anxiety that comes with temporary separation from parents. The majority of the time, the medication will make children a bit drowsy, however, it can sometimes cause paradoxical hyperactivity. On a positive note, Midazolam is a relatively short acting medication half life of 11.5 hours and depending on the other medications given anesthetic gases, pain meds, your child should return to their normal state within hours of their procedure. Hope this helps.