How do you define the word "side effects" to a patient who is unfamiliar with the word?

Many patients will understand the term 'side effect,' but others may not. As a pharmacist, you must educate your patients on the purpose of a drug, how to take it, its effects, side effects, and how to respond to adverse reactions. Side effects are defined as a 'secondary, typically undesirable effect of a drug or medical treatment.' The interviewers want to see how you communicate medical terms to your patients, ensuring they are well-informed before taking their prescription medication.