Macrolide antibiotics are a class of medications used to treat various bacterial infections. They work by inhibiting bacterial protein synthesis, which prevents the bacteria from growing and reproducing. Common examples include erythromycin, azithromycin, and clarithromycin. These antibiotics are often prescribed for respiratory infections, skin infections, and certain sexually transmitted diseases. Macrolides are generally well-tolerated, but they can cause side effects such as gastrointestinal discomfort and allergic reactions. They are particularly useful for patients who are allergic to penicillin or when other antibiotics are ineffective. Due to their broad-spectrum activity, they are an important tool in modern medicine.