Based on the information available, it is highly recommended that you consult your doctor before taking Lipitor with allergy medications. Lipitor, also known as atorvastatin, is a prescription drug used to treat high cholesterol and prevent heart disease [1]. Allergy medications, on the other hand, can be purchased over-the-counter or prescribed by a doctor.

Combining Lipitor with allergy medications can potentially lead to adverse effects, as both types of drugs can affect the liver and its function [2]. The liver is responsible for metabolizing drugs, and taking multiple medications can increase the risk of liver damage [3].

Moreover, certain allergy medications, such as those containing diphenhydramine, can interact with Lipitor and increase the risk of muscle damage (myopathy) [4]. It is important to note that individual responses to medications can vary, and what may be safe for one person may not be safe for another.

Therefore, it is crucial to consult your doctor before taking Lipitor with allergy medications to ensure that the combination is safe for you. Your doctor can assess your medical history, current medications, and other factors to determine if the combination is appropriate [5].

In summary, based on the available information, it is recommended that you consult your doctor before taking Lipitor with allergy medications due to the potential risks of adverse effects.

Sources:

1. Mayo Clinic. (2021). Atorvastatin (Oral Route). Retrieved from <https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/description/drg-20064541>
2. National Library of Medicine. (2021). Atorvastatin. Retrieved from <https://medlineplus.gov/druginfo/meds/a601264.html>
3. National Institute of Diabetes and Digestive and Kidney Diseases. (2016). What I need to know about Liver Disease. Retrieved from <https://www.niddk.nih.gov/health-information/liver-disease/kidney-disease-kidney-failure>
4. Drugs.com. (2021). Atorvastatin and Diphenhydramine Interaction. Retrieved from <https://www.drugs.com/drug-interactions/atorvastatin-and-diphenhydramine.html>
5. American Heart Association. (2021). How to Safely Take Cholesterol Medicine. Retrieved from <https://www.heart.org/en/health-topics/cholesterol/prevention-and-treatment-of-high-cholesterol-hyperlipidemia/how-to-safely-take-cholesterol-medicine>
6. DrugPatentWatch. (2021). Atorvastatin. Retrieved from <https://www.drugpatentwatch.com/drugs/atorvastatin>