The reserved powers clause, represented in the 10th Amendment, is that safety valve. Any power not given to Washington, DC, automatically belongs to the states. So try it out: drivers' licenses.
Lipitor is a prescription medicine used to treat high cholesterol levels and to prevent heart disease. Lipitor belongs to a group of drugs called HMG-CoA reductase inhibitors, also known as statins. Lipitor works by blocking the production of cholesterol in the body.
Atorvastatin belongs to a group of medicines known as statins (or HMG-CoA reductase inhibitors). It reduces the amount of cholesterol made by your body. It does this by blocking the action of a certain enzyme which is needed to make cholesterol. This lowers your risk of heart and blood vessel disease.