Based on the information you've provided, it is not explicitly stated whether there has been a switch to a different Lipitor dosage. However, it is important to note that Lipitor, a medication used to treat high cholesterol, does come in various dosages. These typically range from 10mg to 80mg, and the appropriate dosage is usually determined by a healthcare professional based on the individual's health status and needs [1].

If there has been a change in your Lipitor dosage, it is crucial to understand that this could be due to a variety of factors. These might include changes in your health condition, the development of side effects, or interactions with other medications [2]. Any changes in medication, including Lipitor, should be discussed with a healthcare provider to ensure safety and effectiveness.

Remember, it is never recommended to alter your medication dosage without consulting a healthcare professional [3]. Self-medication can lead to serious health risks.

Sources:
[1] "Lipitor." Mayo Clinic, Mayo Foundation for Medical Education and Research, 15 Jan. 2022, www.mayoclinic.org/drugs-supplements/lipitor-oral-route/description/drg-20062854.
[2] "Lipitor." Drugs.com, www.drugs.com/lipitor.html.
[3] "Why It's Dangerous to Change Your Medication Dosage on Your Own." Healthline, Healthline Media, 15 Nov. 2018, www.healthline.com/health/dangers-of-changing-medication-dosage.