Which of the following is not a clinical sign of atropine intoxication?
Flushing of the face
Dry skin
Increased bowel sounds
None of the above
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