Controlled substances require special tracking due to their potential for abuse and dependency. Examples include opioids and stimulants, which must be prescribed by a healthcare provider. Other medications and herbal compounds do not require the same level of tracking. ;
Controlled substances are regulated medications with a high potential for abuse, requiring careful tracking and prescriptions from licensed healthcare providers. Examples include opioids and stimulants, highlighting their unique regulatory status compared to over-the-counter medications and herbal compounds. The selected option from the question is A: Controlled substances.
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