C2 cyclosporine levels (drug levels measured at two hours after your dose of cyclosporine) are not commonly performed any longer. I do not rely on these levels to dose cyclosporine. I use levels that are measured just prior to your next dose of cyclosporine (known as trough levels of cyclosporine). Hence, I would follow your doctor’s advice if he or she has been determining these levels in the past. The past experience is the best way to maintain your transplanted kidney for the long term. You should ask your nephrologist to explain the dosing and then follow that advice.