I thought the same thing when I was first diagnosed. Why would anyone want to inject more than once a week? I tried Avonex, but was only able to stay on it for about 6 weeks. It made my liver enzymes go up 3x what they were supposed to be. The only thing I can take now is Copaxone bc all of the others (besides Ty) are interferons, which can also send the liver enzymes up.