<prompt> Which of the following is not a clinical sign of atropine intoxication?Flushing of the faceDry skinIncreased bowel soundsNone of the above  <response>: Atropine is an anticholinergic drug. It will decrease GI motility.PHARMACOLOGICAL ACTIONS of Atropine:Atropine blocks all subtypes of muscarinic receptors.Tone and amplitude of contractions of stomach and intestine are reduced; the passage of chyme is slowed-constipation may occur, spasm may be relieved. However, peristalsis is only incompletely suppressed, because it is primarily regulated by local reflexes in the enteric plexus, and other neurotransmitters 5-HT, enkephalin, etc., are involved.Enhanced motility due to injected cholinergic drugs is more completely antagonised than that due to vagal stimulation, because intramural neurons which are activated by vagus utilize a number of noncholinergic transmitters as well.Reference: Essentials of Medical Pharmacology Eighth Edition KD TRIPATHI page no 125,126 