The number of drugs that can be dangerous if taken alongside grapefruit or other citrus fruits is increasing rapidly. Although the interaction between grapefruit juice and various drugs have been known for some time concerns have been raised over the number of drugs now involved and the lack of general knowledge in the health community.

Very few people are able to recall a great deal of what their doctor says. Maybe this is due to anxiety, or the words used, the amount of information being...