South Carolina Multistate Pharmacy Jurisprudence Examination (MPJE) Practice Exam

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Prepare for the South Carolina MPJE with flashcards and multiple choice questions. Each question offers hints and explanations to enhance your understanding. Get exam-ready today!

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Which of the following substances is an example of a C5 controlled substance?

Phentermine
Diphenoxylate/atropine
Butalbital
APAP + codeine

The correct answer is: Diphenoxylate/atropine

Diphenoxylate/atropine is classified as a C5 controlled substance, which is the correct choice. This combination is commonly found in medications intended to treat diarrhea. In the context of controlled substances, C5 indicates that the substance has a lower potential for abuse compared to substances classified in higher schedules. Specifically, diphenoxylate is an opioid that can help reduce gastrointestinal motility, and when combined with atropine, it discourages misuse by causing unpleasant effects if taken in higher doses. Other substances listed have different classifications. Phentermine is generally recognized as a C4 controlled substance, used primarily as an appetite suppressant. Butalbital is a barbiturate and is classified as C3, associated with a moderate potential for abuse. APAP + codeine, a combination of acetaminophen and codeine, is classified as C3 due to the presence of codeine, which is an opioid that has a higher potential for abuse compared to substances in C5. Each of these classifications reflects the regulatory measures in place to manage the potential for abuse and dependence associated with these drugs.