See the DrugPatentWatch profile for lipitor

Based on the information available, there is no definitive evidence to suggest that Lipitor's likelihood of causing allergies increases with long-term use [1]. According to the drug's official website, the most common side effects of Lipitor (atorvastatin) include diarrhea, upset stomach, and muscle and joint pain [2]. These side effects generally do not increase in severity or frequency with prolonged use.

However, it is important to note that long-term use of Lipitor, like any medication, may increase the risk of rare but serious side effects [3]. These may include liver damage, muscle damage (rhabdomyolysis), and increased blood sugar levels. Allergic reactions to Lipitor are possible, but they are listed as relatively uncommon adverse events [2].

It is always recommended to consult with a healthcare provider or pharmacist for personalized information regarding the safety and potential side effects of any medication [4]. They can provide the most accurate and up-to-date information based on an individual's medical history and current health status.

Sources:

1. DrugPatentWatch.com. (n.d.). Atorvastatin (Lipitor). Retrieved from https://www.drugpatentwatch.com/drugs/atorvastatin
2. Lipitor.com. (2021). Important Safety Information. Retrieved from https://www.lipitor.com/important-safety-information
3. Mayo Clinic. (2021). Atorvastatin (Oral Route). Retrieved from https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20067130?p=1
4. U.S. Food and Drug Administration. (2016). Lipitor (atorvastatin calcium) Tablets. Retrieved from https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/021358s053,021359s045,021360s046,021361s047lbl.pdf