See the DrugPatentWatch profile for lipitor

Based on the information you have provided, it is not possible for me to provide a specific length of time for which you have been experiencing lipitor-related muscle pain. Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol and prevent heart disease [1]. Muscle pain is a potential side effect of this medication [1].

It is important to note that everyone's experience with medication is different, and not everyone who takes Lipitor will experience muscle pain. If you are experiencing muscle pain and are concerned it may be related to your medication, it is recommended that you speak with your healthcare provider [1]. They will be able to evaluate your symptoms and determine if any adjustments need to be made to your medication regimen.

In addition, it is always important to follow the dosage and usage instructions provided by your healthcare provider and the medication's label [1]. If you have any questions or concerns about your medication, it is always best to speak with a healthcare professional.

Sources:

1. [DrugPatentWatch.com - Lipitor (Atorvastatin Calcium)](https://www.drugpatentwatch.com/drugs/lipitor)