<prompt> Which is false regarding halothane?It is a pleasant smelling gasDecreased vagal toneSensitises myocardium to catecholaminesIt can cause postoperative hepatitis  <response>: Halothane has little analgesic propeies but vagal tone resulting in bradycardia,vasodilatation and hypotension. The frequency of postoperative hepatitis is approximately 1 in 4000 for multiple exposures. Halothane sensitizes the hea to the arrhythmogenic effects of epinephrine , so that doses of epinephrine above 1.5 gkg should be avoided. Ref: Morgan, Jr. G.E., Mikhail M.S., Murray M.J. 2006. Chapter 7. Inhalation Anesthetics. In G.E. Morgan, Jr., M.S. Mikhail, M.J. Murray Eds, Clinical Anesthesiology, 4e. 