Side effects of targetted bladder chemo

Hi. Im new here. I was diagnosed with low risk bladder cancer in December 2024. I had surgery, including 1 off targetted chemo at the same time in January 2025.

I had the operation again in April 2026.

I went in fir a repeat yesterday and the have done different procedure and suggesting a course of 6 weekly chemo sessions.

What are the side effects of having this 6 times?

I had very few sude effects for the 1 off but want to be prepared. 

Thanks. Em.