What specific requirement does the label of an OTC bottle of Ipecac Syrup have?

The label of an OTC bottle of Ipecac Syrup must include warnings printed in red ink. This is crucial because Ipecac is used to induce vomiting in cases of poisoning, and the prominence of warning information is essential for safety. The red ink draws attention and ensures that individuals using the product can easily identify important safety information, such as potential risks and situations in which the use of Ipecac would not be appropriate. This requirement emphasizes the importance of clarity and visibility in labeling, particularly for substances that can significantly affect health outcomes.

Regarding the other options, while they may address various labeling practices, they do not specifically relate to Ipecac Syrup's unique requirements. Highlighting active ingredients or bolding the manufacturer's name is standard practice but does not hold the same level of urgency for Ipecac as having clear warnings. Providing instructions in a specific language, such as Spanish, is not mandated universally and may depend on the demographic needs of the area where the product is distributed.