thio·pen·tal .thī-ō-'pen-.tal, -.tȯl n a barbiturate used in the form of its sodium salt C11H17N2NaO2S esp. as an intravenous anesthetic see PENTOTHAL
* * *
n.
a short-acting barbiturate. It is given by intravenous injection to produce general anaesthesia or as a premedication prior to surgery. Possible complications of thiopental anaesthesia can include respiratory depression, laryngeal spasm, and thrombophlebitis. The drug is not used when respiratory obstruction is present.
Medical dictionary. 2011.