Lipitor is a brand name for atorvastatin, which is a medication used to lower cholesterol levels in the blood. Allergy medications are used to treat allergic reactions. Taking these two medications together may cause potential side effects.

According to the Mayo Clinic [3], the common side effects of atorvastatin include diarrhea, joint pain, and muscle pain. The medication may also cause liver problems, which can lead to jaundice, dark urine, and pale stools. Additionally, atorvastatin may cause muscle damage, which can lead to muscle pain, weakness, and tenderness.

Allergy medications, on the other hand, may cause drowsiness, dizziness, and dry mouth [2]. These medications may also cause an upset stomach, headache, and blurred vision. In rare cases, allergy medications may cause an allergic reaction, which can lead to difficulty breathing, hives, and swelling of the face, lips, tongue, or throat.

Taking atorvastatin with allergy medications may increase the risk of side effects. For example, taking atorvastatin with antihistamines, which are commonly used to treat allergies, may increase the risk of muscle damage [1]. Additionally, taking atorvastatin with decongestants, which are used to relieve nasal congestion, may increase blood pressure [2].

It is important to talk to a doctor or pharmacist before taking atorvastatin with allergy medications. They can provide guidance on how to take these medications safely and minimize the risk of side effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects
[3] https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20067003