Let's take a minute to talk about your medication. 

This is quinapril. You should take it as directed by your doctor at the same time each day. 

Quinapril is often used to treat high blood pressure. This helps protect you from heart attacks, stroke, kidney failure and loss of eyesight. 

It's usually well-tolerated. Still, side effects can occur, like feeling tired or getting a headache. You could also feel lightheaded, so stand slowly after you've been sitting or lying down. These effects are normal if they are mild, and should go away. Some patients may get a dry cough. If these or other side effects become reasons you want to stop taking it, please talk to your doctor or pharmacist. 

As with any medicine, more serious side effects can occur. You should call your doctor if you have unusual changes to your body. This includes fainting, or a lingering fever, cough or sore throat. Also, get help right away if you have breathing problems or swelling in your face or throat, because it could be a rare allergic reaction. 

You should ask your doctor or pharmacist before using a salt-substitute and before taking other medicines, even if they don't require a prescription. Also, you should stay hydrated. So, drink ample amounts of water, avoid prolonged sweating, and tell your doctor if you have severe vomiting or diarrhea. 

Women should not become pregnant because this medicine can be unsafe for the baby. 

For best results, continue taking quinapril, and follow your doctor's advice about diet, exercise and checking your own blood pressure.