Side effects can include nausea, vomiting, appetite loss, diarrhea, confusion and new heartbeat irregularities. ACE inhibitors - decrease the pressure inside blood vessels so the heart doesn't have to work as hard to pump blood through the vessels. These drugs work by preventing the production of a chemical that causes the blood vessels to narrow. Side effects can include coughing, skin rashes, fluid retention, excess potassium in the bloodstream, kidney problems, and an altered or lost sense of taste. Hydralazine - widens blood vessels, increasing blood flow.
Side effects can include headaches, rapid heartbeat and joint paint.
Nitrates - used mostly for chest pain, but may also help diminish heart failure symptoms. They relax smooth muscles and widen blood vessels. They act to primarily lower systolic blood pressure. Side effects can include headaches. These medications slow the heart rate and decrease its ability to contract.