Treatment questions

Hello, I’m 58 and diagnosed recently with ms, I probably had symptoms, but doctors misdiagnosed those. Now the neurologist wants to put me on Rituximab, but as I was reading about it, some side effects scared me and I need some feedbacks to let me know if anyone has been treated with rituximab and how did this worked? Or, what other med. you might be on and how effective are they? Thank you so much