The maximum amount that can be dispensed of a product containing phenylpropanolamine in a 30-day period is?

The maximum amount that can be dispensed of a product containing phenylpropanolamine in a 30-day period is established based on regulatory guidelines for controlled substances and certain over-the-counter medications. In the case of phenylpropanolamine, which is recognized for its potential for misuse and associated health risks, the regulations specify a limit to prevent excessive dispensing.

The correct answer reflects the established limit of 9 grams over a 30-day period. This limit is particularly important as it helps to mitigate risks associated with high doses of this substance while allowing for sufficient access for legitimate medical use. Other amounts listed, such as 3 grams, 5 grams, and 12 grams, do not align with the regulatory guidance intended to balance safety with access. Thus, the answer of 9 grams is accurate and adheres to the legal framework governing substances that contain phenylpropanolamine.