Rhode Island Multistate Pharmacy Jurisprudence (MPJE) Practice Exam

According to the classification, what schedule does barbital belong to?

1. C III

2. C IV

3. C II

4. C I

The correct answer is: C IV

Barbital is classified as a Schedule IV controlled substance. This classification is based on its potential for abuse relative to substances classified under other schedules. Schedule IV substances are considered to have a low potential for abuse and, therefore, a lower risk of dependence compared to higher schedules. Barbiturates, including barbital, are primarily used for their sedative and hypnotic properties, which can lead to misuse, but their lower potential for abuse and dependence compared to Schedule III and Schedule II substances places them in Schedule IV. Schedule I substances have the highest level of restriction, indicating that they have no accepted medical use and a high potential for abuse, while Schedule II substances have a high potential for abuse that may lead to severe psychological or physical dependence, which does not apply to barbital’s classification.