Thanks.Yes. It is very true that in fact has been shown to inhibit the action of an enzyme in the intestinal wall which slows the entry of drugs into the bloodstream. Moreover the derivative found in grapefruits doesn't encourage the drug absorption any better it actually blocks it from being degraded and therefore the levels of drug in the blood increase.
The effects of grapefruit is something discovered almost a decade ago in order to mask the taste of medication. However, be that as it may there are shown as indicated these such effects proven with certain drugs to actually help bolster the absorption rate in the body. So, effectively this slows down the enzyme that breaks them down. While, it is rather distinct from the shrewd effectiveness for acidity to dissolve some tablets, it works nevertheless.
Conversely, there are good reasons to avoid so-said products for which contain grapefruit only if you already have been prescribed or when taking certain drugs i.e. this being some that are prescribed for fighting life-threatening conditions such as heart disease, cancer, organ-transplant rejection, and infection. There have been many studies over the years that seem to indicate there are 85 drugs that can interact with the fruit and that 43 of those have serious side effects. Physicians should review medication lists often, with the goal of warning patients about adverse interactions. This being said, otherwise I cannot find any reason for concern here.