Tag: azathioprine safety

Azathioprine and the Risk of Myositis: What You Need to Know

• Cheryl Moran
• October 27, 2025
• 16 Comments

Azathioprine is an effective immunosuppressant but carries a rare risk of myositis-muscle inflammation that can cause weakness and pain. Learn the signs, who’s at risk, and what to do if you suspect side effects.