The phrase comes from German medicine advertising, where versions of “Zu Risiken und Nebenwirkungen lesen Sie die Packungsbeilage und fragen Sie Ihren Arzt oder Apotheker” became widely familiar through television and radio. Because almost every viewer in German-speaking countries recognizes the wording, the clip spread online as a shorthand warning for obviously bad ideas. It still shows up in memes, short-form videos and parody commercials, alongside variations such as Zu Nebenrisiken und Wirkungen.