Lipitor and antibiotics have distinct functions in the medical field. Lipitor, a statin drug, is primarily used to lower cholesterol levels in the blood [1]. On the other hand, antibiotics are medications used to treat infections caused by bacteria [2].

Lipitor works by inhibiting the HMG-CoA reductase enzyme, which plays a crucial role in the production of cholesterol in the body [1]. By reducing cholesterol levels, Lipitor helps prevent plaque buildup in the arteries, thereby reducing the risk of heart disease and stroke.

Antibiotics, however, function by killing bacteria or inhibiting their growth [2]. They are used to treat a wide range of bacterial infections, such as pneumonia, meningitis, and urinary tract infections. Antibiotics are not effective against viral infections, such as the common cold or flu.

In summary, while both Lipitor and antibiotics are important medications, their functions are distinct. Lipitor is used to lower cholesterol levels, while antibiotics are used to treat bacterial infections.

Sources:
[1] "Lipitor (atorvastatin)". DrugPatentWatch.com. Retrieved 2023-03-22. <https://drugpatentwatch.com/drugs/lipitor>.
[2] "Antibiotics". Mayo Clinic. 2022. Retrieved 2023-03-22. <https://www.mayoclinic.org/diseases-conditions/antibiotics/symptoms-causes/syc-20371680>.