I really think these are questions you should be asking your physician. If he or she doesn't know how these meds might affect your cycling, ask for a referral to a physician who understands sports better. The reality is that each person' situation is different and what has worked for one person on this forum may not be even close to what will work for you. I know that "pushing" for more information related to your specific concerns can be intimidating to some people. But I believe it well worth the effort to build a relationship with your primary physician where you can get such questions answered. After eight years of pushing my primary physician he now routinely considers what impact a given course of treatment will have on my cycling. He knows that cycling is a VERY BIG part of what keeps me healthy.