DIPHENOXYLATE HYDROCHLORIDE AND ATROPINE SULFATE IS NOT RECOMMENDED FOR CHILDREN UNDER 2 YEARS OF AGE. Diphenoxylate hydrochloride and atropine sulfate should be used with special caution in young children because of the greater variability of response in this age group. See WARNINGS and DOSAGE AND ADMINISTRATION.
Similarly, nerve damage in the arm can cause numbness. This may include damage to the nerves in the arms, shoulder, neck, or spine. This could be the result of blood circulation being interrupted or a nerve becoming compressed.
There are many conditions that can cause numbness in left arm, and the good thing is that not all are a major cause for concern. Numbness can be caused by inflammation, infections or even trauma. In many cases, numbness is a result of nerve damage or lack of blood supply to one area.