Unfortunately there are no known ways to suppress the cough that are approved. Some experimental things involving dangerously high doses of iron have been mentioned (PLEASE DON'T TRY THAT!!!!!). Nothing at all medically safe has been found to work. Very frustrating as lisinopril is a cheap and very effective drug for those that don't get the cough.
I had the cough too. Just unbearable. Now I'm on an ARB which unfortunately have no generics available. Sorry