Are there specific citrus fruits to avoid with lipitor?

Citrus fruits that interact with Lipitor
Lipitor (atorvastatin) is processed by the CYP3A4 enzyme in the liver. Grapefruit and its juice contain compounds that block this enzyme, raising blood levels of the statin and increasing the chance of muscle pain, liver enzyme changes, or rhabdomyolysis.

How much grapefruit is risky
Even one 8-ounce glass of juice or a single grapefruit can produce a measurable interaction. Larger or repeated servings widen the effect, and the interaction can last 24–72 hours after the last intake.

Other citrus fruits
Oranges, tangerines, lemons, and limes do not inhibit CYP3A4 to the same degree and are considered safe with Lipitor.

What to do if you enjoy grapefruit
Ask your prescriber about switching to a statin less affected by grapefruit, such as pravastatin or rosuvastatin, or about dose adjustments if you choose to continue both.

Label and guideline sources
The Lipitor prescribing information and FDA labeling explicitly list grapefruit juice as a substance to avoid [1]. Clinical reviews in the Journal of Clinical Pharmacology confirm that only grapefruit, not other common citrus, produces clinically significant interaction [2].

[1] https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/020702s072lbl.pdf
[2] https://pubmed.ncbi.nlm.nih.gov/24251377/