Lipitor.

Lipitor (atorvastatin) is a prescription drug intended for reducing the risk of stroke or heart attack. You may be started on a lower dose of this medicine but it can be increased later based on the way your body responds to the treatment prescribed. Your dose is not supposed to be increased more often than every 2-4 weeks. Make sure you tell your health care provider about any other medical conditions you have such as thyroid disease, diabetes, kidney disease, muscle weakness, muscle aches, and other ones that can affect the dose you are prescribed. It's very important that you let your health care provider if you are taking any oral contraceptives, diltiazem, erythromycin, antifungal medications, efavirenz, rifampin, cimetidine, clarithromycin, drugs suppressing the immune system, other cholesterol-lowering medications, or other prescription or over-the-counter products of the kind that have been reported to interact with Lipitor making it less efficient. There is no need for you to worry if you get some mild side effects – such as diarrhea, constipation, joint pain, gas, or headache, as they do not tend to last for too long and usually go away on their own.