For which of the following must oral administration drug products have an identifying imprint?

Oral administration drug products, specifically tablets and certain capsules, must have an identifying imprint to help ensure safety and efficacy. This requirement applies to nonprescription tablets and prescription tablets because they are more commonly associated with the risk of misuse or confusion among different products. An imprint allows healthcare professionals and patients to easily identify the medication's manufacturer, active ingredient, and dosage strength. This identification is crucial for preventing medication errors.

For prescription capsules, while it is good practice for manufacturers to include identifying characteristics, the regulations for requiring imprints primarily emphasize the obligation for oral tablet forms. Therefore, both nonprescription and prescription tablets being mandated to have an imprint highlights the importance of patient safety, as it reduces the likelihood of medication errors and reinforces proper identification in various healthcare settings. The combination of both these types underlines a broader regulatory focus on ensuring identifiable products for consumer protection.