Let's take a minute to talk about your medication. This is Sovaldi. It helps treat certain types of Hepatitis C infection. It may have other uses, too. Your doctor will prescribe one or two other medicines to take with Sovaldi. It is important to read the Medication Guides for those medicines. Sovaldi is often taken once a day at the same time each day. You should take it exactly how your doctor tells you to. You can take it with or without food. It is important to not miss any doses. Some people take it with food to reduce stomach upset. Many people will have side effects. You could have a headache, trouble sleeping, or feel a little tired. These effects are normal if they are mild and should go away. You should wait until you know how this medicine affects you before doing activities that require you to be alert, like driving. If these or other effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. As with any medicine, more serious side effects could occur. You should read the patient information sheet to know which symptoms to watch for and when to report them. If you have previously had Hepatitis B, Sovaldi could cause it to become active again. To help keep this medicine safe for you, your doctor will order blood tests and will follow your condition closely.. Sovaldi can interact with other medicines. You should talk to your doctor and pharmacist before taking other medicines.. Women must talk to their doctors before becoming pregnant and before breastfeeding. For best results with Sovaldi, you should plan ahead for refills. .