Lisinopril
"I am 55 years old, blood pressure ran from about 150-180 (systolic). Lisinopril (20mg) got my blood pressure to about 120/80. No side effects noted. My liver profile is normal, but I have noted my TSH, and fT4 drift a little high then normal. Having taken up exercise, reduced salt intake, etc, my blood pressure will be about normal without the drug.
It seems as though my fT4 and TSH tend to elevate when on lisinopril. I have just noticed this over the past 2 months.
I am now keeping records of when I take the drug over a week then will do repeat thyroid function tests to see if there is a trend. "