What is the classification of drugs that have the lowest possible abuse potential?

Drugs classified in Schedule V have the lowest potential for abuse compared to the other schedules. This classification includes substances that are considered to have accepted medical uses and lower risks of dependence and abuse. Schedule V drugs may be compounded medications that primarily contain low concentrations of narcotics and are often available without a prescription or with fewer restrictions than higher schedules.

In this context, Schedule I narcotics are characterized by having no accepted medical use and a high potential for abuse, making them the most restrictive category. Schedule II narcotics have a high potential for abuse but also have accepted medical uses, while Schedule IV narcotics have a lower potential for abuse than Schedule II and III but still have some restrictions. Thus, Schedule V stands out as the classification for drugs with the least potential for abuse, confirming the correctness of identifying it as the answer.