Final answer:
Package inserts are not optional; they are a required inclusion by manufacturers for prescription medications to ensure safe and informed use of the drugs.
Step-by-step explanation:
The assertion that package inserts are optional information for manufacturers to include on prescription medications is false. Package inserts, also known as prescribing information, are an essential component required by regulatory agencies such as the U.S. Food and Drug Administration (FDA). These inserts contain critical information about the medication, including its uses, dosing, side effects, contraindications, pharmacology, and clinical trial data. The purpose of this mandate is to ensure healthcare professionals and patients have access to important information that can influence prescribing decisions and safe medication use.