Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood [1]. The drug works by inhibiting an enzyme that is responsible for producing cholesterol in the liver. Amlodipine is a calcium channel blocker that is used to treat high blood pressure [3]. According to the Mayo Clinic, amlodipine and atorvastatin are sometimes used together to treat high blood pressure and high cholesterol levels [3].

Combining drugs that lower blood pressure and cholesterol levels may be more effective in preventing strokes, according to a study published by the American Heart Association [2]. The study found that people who took a combination of blood pressure and cholesterol-lowering medications had a lower risk of stroke than those who only took one type of medication. The study also found that the combination therapy did not increase the risk of side effects [2].

It is important to have regular blood pressure checks while taking amlodipine and atorvastatin [3]. This is because both drugs can cause low blood pressure as a side effect, which can be dangerous if left untreated. Additionally, atorvastatin can cause liver damage in rare cases, so regular liver function tests may also be necessary [1].

In conclusion, Lipitor (atorvastatin) is a drug used to lower cholesterol levels, while amlodipine is a drug used to treat high blood pressure. Both drugs may be used together to treat high blood pressure and high cholesterol levels. Combining drugs that lower blood pressure and cholesterol levels may be more effective in preventing strokes. It is important to have regular blood pressure checks and liver function tests while taking these medications.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://newsroom.heart.org/news/combining-drugs-that-lower-blood-pressure-and-cholesterol-could-do-more-to-prevent-stroke
[3] https://www.mayoclinic.org/drugs-supplements/amlodipine-and-atorvastatin-oral-route/precautions/drg-20062902