Drug Interactions between etrasimod and fidanacogene elaparvovec

Grapefruit juice may increase the blood levels of etrasimod. You should avoid grapefruit, grapefruit juice, or any supplements that contain grapefruit extract during treatment with etrasimod unless directed otherwise by your doctor. Talk to your doctor if you have any questions or concerns. Contact your doctor if your condition changes or you experience increased side effects, such as fever, high temperature or flu-like symptoms, severe headache, confusion, seizures, dizziness, tiredness, lightheadedness, chest pain, shortness of breath, or irregular or abnormal heartbeat, blurriness or shadows in the center of your vision, and nausea, vomiting, abdominal pain, anorexia, or jaundice and/or dark urine. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

After receiving fidanacogene elaparvovec, alcohol consumption should be limited for at least 1 year. Fidanacogene elaparvovec can cause liver problems, which may make the medication less effective in treating your condition. Consuming other substances that can also affect the liver such as alcohol after receiving fidanacogene elaparvovec may increase that risk. Symptoms of liver problems include fever, chills, joint pain or swelling, unusual bleeding or bruising, skin rash, itching, loss of appetite, fatigue, nausea, vomiting, abdominal pain, dark urine, pale stools, and/or yellowing of the skin or eyes. Blood tests to monitor liver function should be performed before and after treatment with fidanacogene elaparvovec. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.