The phrase "wrong drug" refers to a medication that is prescribed or administered incorrectly, either by mistake or due to an error in judgment. This can result in harm to the patient and may lead to serious health complications or even death. The term also encompasses instances where a patient receives a medication that was not intended for them, such as when two patients with similar names are given the wrong prescription. In any case, the "wrong drug" is one that does not match the patient's medical condition, age, weight or other factors and can result in adverse reactions or complications.