<prompt> Small amount of atropine is added to diphenoxylate becauseSuppress vomiting in gastro enteritisIncrease anti motility actionBlock side effects of diphenoxylateTo decrease abuse of diphenoxylate  <response>: Atropine is an anti muscarinic drug diphenoxylate is an opoid drug which when given has propey of abuse hence atropine is added to it aas the anti muscarinic side effects of atropine will decrease the abuse of the drug. ReF:KDT 6e p664 