Each pre-filled pen contains 30mcg of Interferon Beta-1A in 0.5mL of solution for injection. Supplied in packs of 4 single-dose pre-filled pens. Keep refrigerated. May be stored at room temperature up to 86F (30C) for up to one week.

Each pre-filled syringe contains 30mcg of Interferon Beta-1A in 0.5mL of solution for injection. Supplied in packs of 4 single-dose pre-filled syringes. Keep refrigerated. May be stored at room temperature up to 86F (30C) for up to one week.