Dear friend, welcome to HCM.
I think , with nephrotic range proteinuria
, rising creatinine above 3, you should rather get renal failure
evaluated with detailed RFTs, ultrasound KUB, urinalysis
, renal artery
doppler and a nephrology consult to prevent renal worsening and get exact cause of renal failure.
certain drugs can noit be used here.
yes, ACEi are out. all calcium channel blockers may increase proteinura in nephropathy.
take care and keep me posted. on the progress.