Grapefruit Juice x Lemon X Orange

Hello, is there any information about other types of citric fruits, like lemon, and orange, changing the availability on medicine intake?
In my region Grapefruit is not easily available.

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Yes - anything that inhibits the CYP 3A4 enzyme will work, and yes to varying degrees different citrus fruits do it. You’ll have to research each specific fruit you are considering.

I recommend you read this thread there are many links that explain the science: Improve Bioavailability of Rapamycin (2)

Other fruits:

Clementine juice has the potential for drug interactions – In vitro comparison with grapefruit and mandarin juice