Extavia is approved to treat multiple sclerosis (MS) in adults (it is not approved for children). Specifically, this drug is used for the treatment of MS in people with relapsing forms of the disease. Healthcare providers may also occasionally recommend "off-label" uses for Extavia, such as treating nonrelapsing forms of multiple sclerosis.
What Is Extavia Used For?Extavia® (interferon beta-1b) is a prescription medication approved for the treatment of multiple sclerosis (MS). It is given by injection just under the skin (subcutaneously) every other day. Typically, people give themselves the injections.
Multiple sclerosis is a disease of the central nervous system (brain and spinal cord) and is the leading cause of disability among young adults. Symptoms of multiple sclerosis can include:
- Muscle weakness
- Tingling or numbness
- Loss of balance
- Blurred or double vision and/or eye pain
- Loss of bladder control
- Muscle stiffness, also known as spasticity (see Spasticity in Multiple Sclerosis)
- Fatigue (see Multiple Sclerosis Fatigue)
- Depression (see Multiple Sclerosis and Depression)
- Memory loss.
There are four basic patterns or types of multiple sclerosis. The most common pattern is relapsing-remitting MS, which consists of episodes of symptoms that last for days or weeks, followed by periods of improvement with little or no symptoms for weeks or months.
A less common pattern of multiple sclerosis is progressive MS, a steady worsening of symptoms from the first sign of illness. The two other main forms include secondary-progressive and progressive-relapsing. Extavia is approved for the treatment of multiple sclerosis in people with relapsing forms of the disease.