Let's take a minute to talk about your medication. This is Ranolazine. It helps to treat a type of chest pain called 'angina.' With regular use of this medicine, you should have less chest pain. It may have other uses, too. It is important to know that this medicine does not treat sudden chest pain. You should take Ranolazine exactly as your doctor tells you to. It is often taken two times each day. You can take your dose with or without food. You should swallow the tablets whole. Never chew, crush, or cut them. Most people tolerate this medicine well. Common side effects include constipation, nausea, and a headache. These effects are normal if they are mild and should go away. It can also cause dizziness and lightheadedness. If you ever feel faint, you should tell your doctor right away. You should wait until you know how this medicine affects you before you do activities that require you to be alert, like driving. If these or other side effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. As with any medicine, rare but more serious side effects could occur. With Ranolazine, this can include problems with your heart and kidneys. You should read the Patient Information Sheet to know which symptoms to watch for and when to report changes. Ranolazine can interact with other medicines. You should always check with your doctor or pharmacist before taking other medicines. Also, you should not eat grapefruit or drink the fruit juice. It is not known if Ranolazine is safe for unborn babies. Women should check with their doctors before becoming pregnant and before breastfeeding.  For best results with Ranolazine, read the Patient Information Sheet for full information.