What is the purpose of a pill cutter?

A pill cutter is specifically designed to cut tablets accurately into smaller doses, making it easier for patients to manage their medications according to their prescribed dosage. This tool ensures that the splitting of a tablet is done in a precise manner, which is important for maintaining the correct dosage for effective treatment and avoiding potential issues related to underdosing or overdosing.

The other options do not align with the primary purpose of a pill cutter. Checking the expiration date is a function that involves inspecting the packaging and labelling rather than using a cutting tool. Crushing pills into powder may be done for various reasons, such as facilitating easier swallowing, but that requires a mortar and pestle or a pill crusher, not a pill cutter. Warming up the medication is unrelated to the cutting function and would typically involve different equipment appropriate for heating substances, such as a heating pad or other devices designed for warming.