thanks for writing to us.
it seems quite improbable that the urea and creatinine
levels which were quite high, returned to normal in between. i would like to recheck with the laboratory. At this much of renal dysfunction
, ACE inhibitor
group of drugs and ARBs are contraindicated and should not be ordinarily used. We can use a number of other drugs which you can discuss with your physician/ nephrologist/cardiologist. feel free to discuss for further queries.