wow , what a Godsend this site has been!! I have been on Lisinopril for about 5 weeks. 3 weeks at 10 mg, and then 2 weeks at 20 mg. I went for my weekly bp check at the doctor last week, not thinking a thing of it, nurse says my pulse was high and irregular, and doctor wanted them to do an EKG on me immediately. It only showed severe heart palpitations, and I was asked if I could feel them, I said Yes!! Doctor said " I bet!" she ordered blood work for me, to check thyroid and something on the heart. Told me to continue taking my lisinopril and water pill. I got to thinking later that night to google info on lisinopril, cause I had since read and threw away my prescription paper. Sure enough it said Lisinorpril can rarely cause heart palpitations!! Supposed to go for a Holter heart monitor to wear for 24 hours today, I don't think I need to now, cause I haven't taken this stinking pill for 3 days and I feel much better, Oh and by the way, it also had me feeling week in all of my limbs!! Bad Bad medicine!!