Got a Facebook ad for erectile dysfunction drugs? GoodRx may have sold your data.

Digital health service GoodRx repeatedly shared sensitive customer information with Facebook, Google and other advertising platforms without its users' knowledge or consent, the Federal Trade Commission alleged on Wednesday. In doing so, GoodRx allowed those services to tap into sensitive health details about those consumers, according to the complaint.

In one case, GoodRx allegedly designed campaigns based on its users' health information to run targeted ads on Facebook, relying on the social media network's ad-targeting platform and making the information visible to Facebook, the complaint alleges. In that case, the campaigns featured ads focused on specific medications such as Viagra or conditions like erectile dysfunction that then ran on Facebook, the complaint claims.

GoodRx shared sensitive user information such as personal health conditions and prescription medications with third-party advertisers without notifying its users or seeking their consent, the FTC said. The medication service also exploited its information to provide Facebook with its customers' personal and health data over a four-year period, the agency claims.