I'm a 53-year old male. My BP was 150/100 before starting the medicine. A few days after starting lisinopril, I developed severe low back pain. I thought that I had aggravated an injury that occurred 25 years earlier. It did not abate for about 10 days. I read on literature that came with the medicine that "muscle cramping" was an infrequent side effect. I decided to stop the drug on my own, and the low back pain subsided in 2 days. My doctor put me on HCTZ only and I have not had a recurrence of the back condition.
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