This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia, Subject name: Pharmacology
TRUE statements regarding halothane is 
Select and explain. 
A. Hepatitis occurs in susceptible individuals after repeated dose, B. It potentiates competitive neuromuscular blockers, C. Causes respiratory depression, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: (All of the above) (339-40-KDT) (372-KDT 6th)HALQTHANE - volatile liquid with sweet odour, non irritant and non inflammable, pleasant and rapid action.* * It is not a good analgesic or muscle relaxant, it potentials competitive neuromuscular blockers.* * Halothane causes direct depression of myocardial contractility by reducing intracellular Ca** concentration.* * Halothane causes relatively greater depression of respiratory, breathing is shallow and rapid* ** Pharyngeal and laryngeal reflexes are abolished early and coughing is suppressed, while bronchi dilates - "preferred for asthmatics"* * Hepatitis occurs in susceptible individuals specially after repeated use* * Malignant hyperthermia occurs rarely