Lipitor is a medication used to lower cholesterol levels in the blood. According to the sources provided, Lipitor is currently available on the market. The drug was first approved by the US Food and Drug Administration (FDA) in 1996 and has been available as a generic medication since 2011 [1].

Lipitor is a commonly prescribed medication for individuals with high cholesterol. It works by blocking an enzyme in the liver that is responsible for producing cholesterol. This helps to reduce the amount of cholesterol in the bloodstream, which can lower the risk of heart attack and stroke [2].

Medical News Today reports that Lipitor is generally well-tolerated, but it may cause side effects such as muscle pain, weakness, and liver problems in some people [2]. It is important to talk to a healthcare provider before starting Lipitor or any other medication.

In conclusion, Lipitor is currently available on the market and has been since 1996. It is commonly prescribed to lower cholesterol levels and reduce the risk of heart attack and stroke. As with any medication, it is important to talk to a healthcare provider about potential side effects and whether Lipitor is the right choice for an individual's health needs [1][2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/lipitor
[3] https://www.lipitor.com/