I'm asking this just out of curiosity since my daily diet doesn't include much grapefruit.
The medical information for Budesonide (which I take twice a day) says, that grapefruit-juice should be avoided. I remember having seen this advice before with other medications. On one webpage it says:
**... medications that block the liver enzymes that break down budesonide may lead to higher blood concentrations and more side effects ..... Grapefruit juice has the same effect.....**
It doesn't say what happens if I do it anyway
Sof