Some Etomidate side effects are explained here. Some Patients receiving etomidate as intravenous injection for induction, frequently complain about pain.
The incidence of pain is about 20% and associated with the conventional formulation due to its solvent propylene glycol which causes direct injury to vascular endothelium resulting in pain and venous sequelae.
Pain on injection and venous irritation has been virtually eliminated with use of etomidate as a lipid emulsion is also considered as of the etomidate side effects