How does Sudafed affect sports?

Sudafed, which contains the active ingredient pseudoephedrine, is a decongestant that can help relieve nasal congestion and sinus pressure. In sports, it may enhance performance by temporarily improving airflow and reducing fatigue, but it's also banned by some sports organizations if taken in excessive amounts. Athletes should be cautious, as misuse can lead to side effects like increased heart rate and anxiety. Always consult with a healthcare professional and check regulations before using it in a competitive context.