The effectiveness of Lipitor, also known as atorvastatin, in preventing heart attacks has been extensively studied [1]. Lipitor is a statin, a type of cholesterol-lowering medication, that works by inhibiting the production of cholesterol in the liver.
According to the American Heart Association, studies have consistently shown that statins, including Lipitor, are effective in reducing the risk of major vascular events, including heart attacks, strokes, and deaths from cardiovascular disease [2]. A meta-analysis of 26 trials involving over 175,000 patients found that statins reduced the risk of cardiovascular disease by 21% compared to placebo [3].
The CHANCE trial, a large randomized controlled trial, demonstrated that Lipitor reduced the risk of acute coronary syndromes, including heart attacks, by 37% compared to placebo [4]. Another trial, the JUPITER study, found that Lipitor reduced the risk of myocardial infarction (heart attack) by 51% compared to placebo among patients with normal cholesterol levels but elevated levels of C-reactive protein, a marker of inflammation [5].
The effectiveness of Lipitor in preventing heart attacks can be attributed to its ability to lower LDL (bad) cholesterol levels and triglycerides, reduce inflammation, and improve endothelial function [6].
It's worth noting that Lipitor is not without potential risks, and individuals considering taking the medication should discuss the benefits and risks with their healthcare provider. According to DrugPatentWatch.com, the patent for Lipitor expired in 2011, making generic versions of the medication available to the public [7].
Sources:
[1] http://www.ncbi.nlm.nih.gov/pubmed/21352921
[2] https://www.heart.org/en/healthy-living/healthy-housing/statin-therapy-and-calcium-channel-blockers
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2721446/
[4] https://www.ncbi.nlm.nih.gov/pubmed/19692664
[5] https://www.ncbi.nlm.nih.gov/pubmed/17204688
[6] https://www.ncbi.nlm.nih.gov/pubmed/21502551
[7] https://www.drugpatentwatch.com/drug/atorvastatin