high blood pressure
"I've been on this medication for two weeks and my blood pressure has definitely dropped from 150-180/96 to 118/68. My main side effect is severe nausea right after taking it in the morning. I've tried to take it with food, milk, and lots of water, but my stomach will hurt for an hour or more no matter what. Unfortunately, I just have to stick it out since I'm only 24, 5'5 and 115 lbs, exercise regularly, and eat really healthy. 

Also, if you're taking this medication make sure your doctor is checking your potassium and electrolyte levels. Should be done within the first month of starting the medication."