Interferon Beta 1A Most Common- Influenza-like symptoms (headache, fatigue, fever, rigors, chest pain, back pain, muscle pain), abdominal pain, depression, elevated liver enzymes level and blood disorder
Verapamil Most Common - Constipation, headache, upper respiratory infection, dizziness, fatigue, swelling in the extremities, nausea, elevated liver enzymes, slow heart rate, tingling, flushing and low blood pressure