My husband is on lisinopril every day with a usual BP of 125/68. He is tonight having 2 readings over an hour apart of 176/75 & 292/121 & 212/89. He took an extra lisinopril after his 2nd reading & diastolic came down, but systolic went up. He has made a call to his dr. & we are now waiting to hear back. Thx for ur help.