I’ve been told grapefruit does the opposite.
Elderly people tried to save money on pharmaceuticals. They’d take half a dose with a glass of grapefruit and received the full dose. Their meds lasted much longer. Pharma did not like that. They were losing $$$.
This may be an old wive’s tale but I’ve been told this by someone who works in the medical profession.
That’s more like it. :^) Not that we’ve learned not to trust big pharma or medical ‘studies’ or anything.
Years ago there was a letter to the WSJ (probably during my college days, I had an econ prof who got us all a rate and required it) in response to an article about a then-new study that found that, contrary to prior claims, higher sodium intake resulted in lower BP. The wag wrote that it just went to show “that medical research should be taken with a grain of - uh, never mind.”