Atorvastatin, commonly known as Lipitor, is a statin medication used to lower cholesterol levels in the blood. According to the sources provided, some side effects may occur with the use of atorvastatin, even with a lower dose.

The most common side effects of atorvastatin include headache, nausea, diarrhea, constipation, and muscle pain [2]. However, these side effects are generally mild and go away on their own within a few days or weeks [3].

In rare cases, atorvastatin can cause more serious side effects, such as liver damage, muscle damage, and an increased risk of diabetes [2]. It is important to seek medical attention immediately if any of these side effects occur.

It is also important to note that atorvastatin can interact with other medications, such as antibiotics and antifungal drugs, which can increase the risk of side effects [3]. Therefore, it is important to inform your doctor of all medications you are taking before starting atorvastatin.

In conclusion, while atorvastatin is generally safe and well-tolerated, some side effects may occur with a lower dose. It is important to be aware of these potential side effects and to seek medical attention if any serious side effects occur. Additionally, it is important to inform your doctor of all medications you are taking before starting atorvastatin.

Sources:
[2] Mayo Clinic. (2021). Statin side effects: Weigh the benefits and risks. https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] NHS. (2021). Atorvastatin. https://www.nhs.uk/medicines/atorvastatin/side-effects-of-atorvastatin/
[4] Drug Patent Watch. (2021). Lipitor. https://www.drugpatentwatch.com/p/tradename/LIPITOR