Diphenoxylate/atropine (Lomotil) is classified into which of the following schedules?

Schedule II substances have a high potential for abuse, which may lead to severe psychological or physical dependence. Examples include opioids and stimulants. Diphenoxylate/atropine does not fit this category as it has a lower potential for abuse, making Schedule II an incorrect classification.

Schedule III substances are considered to have a moderate potential for abuse, leading to moderate or low physical dependence or high psychological dependence. Examples include anabolic steroids and certain barbiturates. Diphenoxylate/atropine does not exhibit the abuse potential associated with Schedule III drugs, so this classification is also incorrect.

Schedule IV substances have a low potential for abuse relative to those in Schedule III and may lead to limited physical or psychological dependence. Common examples include benzodiazepines. While Diphenoxylate/atropine has a low abuse potential, it is still classified even lower in Schedule V, indicating it is not accurately categorized as Schedule IV.