Lemon water is not known to have a significant interaction with Lipitor (atorvastatin), a medication commonly prescribed to lower cholesterol levels. While grapefruit juice is known to interact with certain statins, such as atorvastatin, by affecting how the body metabolizes the medication, lemon water does not contain the compounds responsible for this interaction. The NHS website advises that there is no specific guidance regarding interactions between atorvastatin and lemon water. It is always recommended to consult with a healthcare provider or pharmacist before making any significant changes to your diet or medication regimen, to ensure the effectiveness of your treatment is not compromised.

Sources:
[1] drugpatentwatch.com/p/tradename/LIPITOR
[2] healthline.com/health/high-cholesterol/grapefruit-and-statins
[3] nhs.uk/medicines/atorvastatin/taking-atorvastatin-with-other-medicines-and-herbal-supplements/