Over-the-counter (OTC) medications are drugs that can be purchased without a prescription from a healthcare provider. They are commonly used to treat minor health issues such as headaches, colds, allergies, and digestive problems. Examples of OTC medications include ibuprofen, acetaminophen, and antihistamines. These medications are generally considered safe when used as directed, but it's important to read the labels carefully. Users should be aware of potential side effects and interactions with other medications. Consulting a healthcare professional is advisable if there are any questions or concerns about using OTC medications.