Let's take a minute to talk about your medication. This is carbidopa and levodopa. It contains two medicines in one tablet. You may also hear it called by its brand name, Sinemet. It is used to treat Parkinson's disease. It may have other uses, too. You should take carbidopa and levodopa exactly how your doctor tells you to. Your doctor will determine what dose is right for you and how often you should take it. Many people will have side effects. Common side effects include uncontrolled muscle movements, nausea, and headaches. You may also have confusion, mood changes, or dizziness. You should wait until you know how this medicine affects you before you do activities that require you to be alert, like driving. Your body fluids, such as urine, sweat and saliva, may change color and stain your clothing; this is normal and is not a reason to be alarmed. If these or other side effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. You should not stop taking it, unless your doctor says it's okay. As with any medicine, rare but serious side effects can occur. You should discuss all possible side effects with your doctor. Also, you should read the Patient Information Sheet for more information on which symptoms to watch for and when to report changes. To help keep this medicine safe for you, your doctor will follow your condition closely and may order blood tests. Carbidopa and levodopa may interact with other medicines and foods. You should check with your doctor or pharmacist before taking any new medicines or making any changes to your diet. Women should talk to their doctors before becoming pregnant or breastfeeding. For best results with carbidopa and levodopa, take this medicine exactly how your doctor tells you to.