<prompt> Which of the following feature differentiates pethidine from morphine?Local anaesthetic actionMore analgesic actionMore respiratory depressionSuppresses cough effectively  <response>: In contrast to morphine, pethidine has following features 110 analgesic potency More rapid onset of action Shoer duration of action Not an effective cough suppressant Lesser spasmodic action on smooth muscles Local anesthetic action Less histamine relief - safer in asthmatics Higher oral; parenteral activity ratio Atropinic effects - dry mouth, blood vision Miosis, constipation Urinary retention are less prominent. 