Which section of a drug's package insert contains information about the usual dosage range?

The section of a drug's package insert that contains information about the usual dosage range is primarily found in the part labeled "Dosing instructions." This section provides healthcare professionals with specific guidance on how much of the medication should be administered to ensure efficacy while minimizing risks of overdose or underdose.

In this context, the "Indications and usage" section outlines the conditions for which the drug has been approved and its intended therapeutic applications, but it does not specify the exact dosage range. Conversely, "Warnings and precautions" focuses on potential risks associated with the drug and necessary safety information, while "Side effects" details the adverse reactions that may occur from using the medication. Therefore, while "Indications and usage" is important for understanding the contexts in which a drug should be used, it does not provide the details on the usual dosage range, which is vital information for proper medication administration.