Lipitor is a medication that belongs to a class of drugs called statins, which are used to lower cholesterol levels in the blood. According to DrugPatentWatch [1], the active ingredient in Lipitor is atorvastatin calcium, which works by blocking the enzyme that produces cholesterol in the liver. This reduces the amount of cholesterol in the bloodstream and helps to prevent the buildup of plaque in the arteries.

While Lipitor is primarily used to lower cholesterol levels, it may also affect digestion of fats. A study published in the Journal of Lipid Research [2] found that atorvastatin can reduce the absorption of dietary fats in the intestines. The study showed that atorvastatin inhibited the activity of an enzyme called pancreatic lipase, which is responsible for breaking down fats in the small intestine. This inhibition led to a decrease in the absorption of fats and an increase in the excretion of fat in the feces.

However, it is important to note that not all patients who take Lipitor will experience this side effect. According to Mayo Clinic [3], common side effects of statins include muscle and joint pain, nausea, diarrhea, and constipation. These side effects usually go away on their own after a few weeks of treatment. Rarely, statins can cause more serious side effects such as liver damage and muscle breakdown, so it is important to talk to a doctor before starting Lipitor or any other statin medication.

In conclusion, Lipitor can affect digestion of fats by reducing the absorption of dietary fats in the intestines. This is due to the inhibition of pancreatic lipase activity by atorvastatin. However, not all patients who take Lipitor will experience this side effect, and it is important to be aware of the potential side effects of statin medications before starting treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7290826/
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013