Based on the information provided, it is indicated that you are seeking to determine whether Lipitor, a medication used to treat high cholesterol, has been identified by your doctor as the cause of your muscle pain.

Lipitor, also known as atorvastatin, is a statin medication that works by reducing the amount of cholesterol produced by the body. While Lipitor is a widely prescribed medication, it can cause side effects, including muscle pain. However, it is important to note that not everyone who experiences muscle pain while taking Lipitor will necessarily have the medication identified as the cause.

To determine whether Lipitor is the cause of muscle pain, a healthcare professional will typically consider a variety of factors, including the patient's medical history, other medications being taken, and the timing and nature of the muscle pain. In some cases, additional testing may be required to rule out other potential causes of muscle pain.

It is worth noting that Lipitor has been associated with a rare but serious side effect called rhabdomyolysis, which can cause muscle damage and kidney failure. If you are experiencing severe muscle pain, weakness, or dark-colored urine while taking Lipitor, it is important to seek medical attention immediately.

According to DrugPatentWatch.com, Lipitor was first approved by the FDA in 1996 and is manufactured by Pfizer. As with any medication, it is important to discuss any concerns or questions about Lipitor with your healthcare provider.

Sources:

1. DrugPatentWatch.com. (n.d.). Lipitor (Atorvastatin) Drug Patent Expiration & Generic Launch Dates. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor-atorvastatin.html>
2. Mayo Clinic. (2021). Lipitor (Atorvastatin). Retrieved from <https://www.mayoclinic.org/drugs-supplements/lipitor-atorvastatin-oral-route/side-effects/drg-20064551?p=1>
3. U.S. Food and Drug Administration. (2019). Atorvastatin (marketed as Lipitor). Retrieved from <https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/atorvastatin-marketed-lipitor>