Fomivirsen

Fomivirsen is a medication used to treat a viral eye infection called cytomegalovirus (CMV) retinitis, especially in people with weakened immune systems. It is administered directly into the eye as an injection. The drug works by blocking the virus's ability to produce its genetic material, preventing it from multiplying. This helps to control the infection and protect vision. Fomivirsen was one of the first antisense medicines, meaning it targets specific genetic sequences of the virus, making it a specialized approach to treating viral infections.