Rhode Island Multistate Pharmacy Jurisprudence (MPJE) Practice Exam

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What is the maximum amount of magnesium per day in OTC products that requires a warning label?

400 mg
500 mg
600 mg
700 mg

The correct answer is: 600 mg

The correct answer regarding the maximum amount of magnesium per day in over-the-counter (OTC) products that requires a warning label is indeed 600 mg. The Food and Drug Administration (FDA) mandates that OTC products containing magnesium should have warning labels if they exceed this dosage. This is primarily to safeguard consumers against potential adverse effects, such as diarrhea or other gastrointestinal issues, that may occur with excessive magnesium intake. In practice, the requirement for a warning label aims to promote safety and informed usage among consumers, ensuring they are aware of the potential risks associated with higher doses of magnesium. It serves as an essential regulatory measure to protect the public health and to provide guidance on the safe consumption of mineral supplements and medications. Understanding this regulation also helps pharmacy professionals in advising patients accurately and recognizing the importance of label information, enhancing their role in patient safety and care.