When conducting a DEA-required inventory, an exact count is required for which of the following medications?

Zolpidem is classified as a Schedule IV controlled substance, which allows for an estimated count during inventory. While it is regulated, the level of control and potential for abuse is lower than that of Schedule II substances, thus not requiring an exact count.

Acetaminophen with codeine is classified as a Schedule III controlled substance. Similar to Schedule IV drugs, it permits an estimated count during inventory. The regulatory framework for Schedule III medications is less stringent compared to Schedule II, reflecting a lower potential for abuse.

Alprazolam is also a Schedule IV controlled substance, which allows for an estimated count. As with zolpidem, the abuse potential is lower than that of Schedule II substances, so an exact count is not required for DEA inventory purposes.