There is no information available on the recommended doses for taking Lipitor and allergy medications together. However, there is information on the drug interactions of Lipitor with other medications, including antivirals. According to the COVID-19 Treatment Guidelines, the combination of ritonavir-boosted nirmatrelvir (Paxlovid) and Lipitor can increase the risk of Lipitor side effects, including muscle pain and weakness. Therefore, it is recommended to avoid this combination if possible. It is also important to inform your healthcare provider about all the medications you are taking, including allergy medications, to ensure safe and effective treatment. As for the recommended doses of Lipitor, it varies depending on the patient's medical condition and other factors. Medical News Today reports that the typical starting dose for Lipitor is 10-20 mg per day, with the maximum dose being 80 mg per day. However, the dose should be determined by a healthcare provider based on individual needs.

Sources:
[1] Drug Patent Watch: Lipitor https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] COVID-19 Treatment Guidelines: Ritonavir-Boosted Nirmatrelvir (Paxlovid) Drug-Drug Interactions https://www.covid19treatmentguidelines.nih.gov/therapies/antivirals-including-antibody-products/ritonavir-boosted-nirmatrelvir--paxlovid-/paxlovid-drug-drug-interactions/
[3] Medical News Today: Lipitor https://www.medicalnewstoday.com/articles/lipitor