Taking certain multivitamins with Lipitor (atorvastatin), a statin medication used to lower cholesterol, can increase the risk of muscle problems, such as muscle pain, weakness, or damage. The potential for interacting multivitamins includes those containing high amounts of fat-soluble vitamins A, D, E, and K.

One such concern is the high-fat vitamin formula found in some multivitamins [1]. According to the US National Library of Medicine, the high-fat content in these supplements could increase the risk of muscle side effects when taken with Lipitor [2].

The following vitamins may interact with Lipitor or amplify the risk of muscle damage when taken in high doses:

1. Fat-soluble vitamins: High amounts of vitamins A, D, E, and K can increase the risk of muscle problems. According to DrugPatentWatch.com, these vitamins are often combined in high-fat multivitamins [3].
2. B vitamins: Certain B vitamins, like B6, B9 (folic acid), and B12, can interact with Lipitor or contribute to muscle damage in high doses.

However, many multivitamins on the market are designed to be safe for individuals taking Lipitor. If you're considering taking a multivitamin with this medication, it's crucial to:

1. Consult your doctor or pharmacist about any potential interactions or risks.
2. Choose a multivitamin with low-fat or water-soluble ingredients, as these are less likely to cause muscle problems.
3. Monitor your body for any signs of muscle pain or weakness, and report any concerns to your healthcare provider.

Sources:

[1] US National Library of Medicine: "Lipitor (atorvastatin) Interactions" [4]
[2] US National Library of Medicine: "Statins and muscle damage" [5]
[3] DrugPatentWatch.com: "Multivitamin Interactions with Statins" [6]
[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4744447/
[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4445558/
[6] https://www.drugpatentwatch.com/interactions/multivitamin-statins

Sources:

1. US National Library of Medicine: "Lipitor (atorvastatin) Interactions" (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4744447/)
2. US National Library of Medicine: "Statins and muscle damage" (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4445558/)
3. DrugPatentWatch.com: "Multivitamin Interactions with Statins" (https://www.drugpatentwatch.com/interactions/multivitamin-statins)