Coated tablets are solid dosage forms of medication that have a protective layer on their surface. This coating can serve various purposes, such as improving the tablet's taste, making it easier to swallow, or protecting the active ingredients from moisture and light. The coating can also help control the release of the medication in the body. There are different types of coatings, including sugar coatings and film coatings. Sugar coatings are often used for palatability, while film coatings are thinner and can provide a more efficient barrier. Coated tablets are commonly used in both prescription and over-the-counter medications.