Explore the science of why mixing drugs and drug interactions with other substances can lead to dangerous health complications.

Which of the following is risky behavior: a person taking cholesterol medicine with grapefruit juice? Or a person taking Acetaminophen before going out for drinks? Or a person on blood thinners who takes an aspirin? Turns out, all of them are risky. Each has inadvertently created a drug interaction that could lead to serious complications. Céline Valéry describes the dangers of mixing substances.