Give an example of sulfa drug.

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Sulfa Drugs**: Sulfa drugs, also known as sulfonamides, are a class of synthetic antimicrobial agents that contain a sulfonamide group (SO2-NH2). They were among the first antibiotics used to treat bacterial infections.

2. **Examples of Sulfa Drugs**: One well-known example of a sulfa drug is **Sulfamethoxazole**. It is commonly used in combination with trimethoprim (as in the drug Bactrim) to treat various bacterial infections.

3. **Applications of Sulfa Drugs**: Sulfa drugs are used to treat a variety of conditions, including urinary tract infections, respiratory infections, and certain types of pneumonia. They can also be used for non-infectious conditions like rheumatoid arthritis.

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