Schedule IV consists of each controlled dangerous substance: added to Schedule IV by the Department under § 5–202(b) of this title; or designated as a Schedule IV controlled dangerous substance by the federal government unless the Department objects under § 5–202(f) of this title. The Department may not add a substance to Schedule IV under § 5–202 of this title unless the Department finds that: the substance has a low potential for abuse relative to the substances listed in Schedule III; the substance has currently accepted medical use in treatment in the United States; and abuse of the substance may lead to limited physical dependence or psychological dependence relative to the substances in Schedule III.