Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the body. According to the sources provided, the dosage of Lipitor should be monitored regularly to ensure that the medication is working effectively and not causing any harmful side effects.

The recommended starting dose of Lipitor is 10-20 mg once daily, with the maximum dose being 80 mg per day [2]. However, the appropriate dosage may vary depending on individual patient factors, such as age, weight, and medical history [3]. Therefore, it is essential to monitor the dosage of Lipitor regularly to ensure that the patient is receiving the appropriate amount of medication.

The frequency of monitoring Lipitor dosage may vary depending on the patient's response to the medication and any potential side effects. For example, if a patient experiences significant side effects or adverse reactions, the dosage may need to be adjusted, and monitoring may need to be more frequent [3]. Additionally, if a patient's cholesterol levels are not responding to the medication as expected, the dosage may need to be increased, and monitoring may need to be more frequent as well [2].

In summary, the dosage of Lipitor should be monitored regularly to ensure that the medication is working effectively and not causing any harmful side effects. The frequency of monitoring may vary depending on individual patient factors and their response to the medication. Therefore, it is essential to consult with a healthcare provider to determine the appropriate dosage and monitoring schedule for each patient.

Sources:
[2] Lipitor (atorvastatin) dosing, indications, interactions, adverse effects, and more. Medscape. https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446. Accessed 13 May 2021.
[3] Atorvastatin. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK430779/. Accessed 13 May 2021.