Medications can add to urological problems in
regards to ED, but I have not heard of it causing low testosterone levels
. I would not rule it out.
Ask your doctor about treatment with testosterone injections. I was born with undecended testes. The left one came down with in the first 6 months, but the right one not untill I was 12. Later due to an infection after surgery, I had my left testicle removed.
Just prior to that I was experiencing problems with ED.