The recommended Lipitor (atorvastatin) dosage can vary depending on the individual's health status, age, and the specific medical condition being treated. Generally, the starting dosage for adults is 10-20mg per day, taken orally with or without food. The dosage can be adjusted based on the patient's response to treatment, usually not exceeding 80mg per day [1].

For patients with high cholesterol levels, the initial dosage is typically 10-20mg per day, which may be increased after two weeks to a maximum of 80mg per day [2]. For those with acute coronary syndrome, the recommended starting dosage is 40mg per day, which can be increased to 80mg per day after one month [3].

It is crucial to follow the healthcare provider's instructions regarding Lipitor dosage. The drug should be taken at the same time every day for optimal results. If a dose is missed, it should be taken as soon as remembered, unless it is close to the time for the next dose. In such cases, the missed dose should be skipped, and the regular dosing schedule should be resumed [1].

Lipitor may interact with certain medications, including cyclosporine, gemfibrozil, and niacin, among others. Therefore, it is essential to inform the healthcare provider of all medications being taken, including over-the-counter drugs, supplements, and herbal remedies [1].

It is also important to note that Lipitor can cause side effects, such as headache, nausea, diarrhea, and muscle pain. In rare cases, it can cause severe muscle damage, kidney problems, or liver damage. Patients should contact their healthcare provider immediately if they experience any of these symptoms [1].

In summary, the recommended Lipitor dosage varies depending on the individual's health status and the medical condition being treated. It is crucial to follow the healthcare provider's instructions and report any side effects or interactions with other medications promptly.

Sources:
[1] Mayo Clinic. (2021). Lipitor (Atorvastatin). Retrieved from <https://www.mayoclinic.org/drugs-supplements/lipitor-oral-route/description/drg-20065831>
[2] Drugs.com. (2021). Lipitor. Retrieved from <https://www.drugs.com/lipitor.html>
[3] DrugPatentWatch.com. (2021). Lipitor (Atorvastatin Calcium). Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>