Atorvastatin, sold under the brand name Lipitor, is a medication used to lower cholesterol levels in the blood. According to the sources provided, there are potential side effects associated with taking lower doses of Lipitor.

The first source, Drug Patent Watch [1], provides a list of potential side effects associated with atorvastatin, including headache, nausea, muscle pain, and diarrhea. These side effects are generally mild and may go away on their own.

The second source, Mayo Clinic [2], notes that some people may experience muscle pain, weakness, or tenderness when taking statins such as Lipitor. These symptoms can be more common in people who take higher doses of the medication, but they can also occur with lower doses. In rare cases, statins can cause a serious condition called rhabdomyolysis, which can lead to kidney damage.

The third source, NHS [3], also lists muscle pain and weakness as potential side effects of atorvastatin. Other possible side effects include constipation, flatulence, and indigestion. Like the other sources, NHS notes that rhabdomyolysis is a rare but serious side effect of statins.

In conclusion, while lower doses of Lipitor may be associated with fewer side effects than higher doses, there are still potential side effects to be aware of. Muscle pain, weakness, and tenderness are among the most common side effects, but more serious side effects such as rhabdomyolysis can also occur. It is important to discuss any concerns or questions about Lipitor with a healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.nhs.uk/medicines/atorvastatin/side-effects-of-atorvastatin/