Arizona MPJE (Pharmacy Jurisprudence) Practice Exam – Prep, Practice Test & Study Guide

Diphenoxylate and Atropine are two active ingredients found in Schedule V (CV) controlled substances. This means that they have a low potential for abuse and a low risk of dependence. The concentration of Diphenoxylate and Atropine in a Schedule V controlled substance per dosage unit is 0.5mg of Diphenoxylate and 25mg of Atropine. Therefore, option A is the correct answer.

Option B, C, and D are incorrect because they either have the incorrect ratio of Diphenoxylate to Atropine (125, 2:25, 2.5:25), or they have the incorrect dosage amount for Atropine (25mg). This makes them not consistent with the drug's designated concentration of 0.5/25mg per dosage unit.

In summary, option A is the correct answer because it accurately reflects the concentration of Diphenoxylate and Atropine in a Schedule V controlled substance per dosage unit, while the other options have either incorrect ratios or dosages.