Bing has said it'll now give warnings in its SERPs over online "unsafe pharmacies" as classified by the US FDA (Federal Drug Administration)
"This warning will appear if a Bing user clicks on a pharmaceutical site that has been cited by the FDA as a fake online pharmacy engaged in illegal activity, such as offering potentially dangerous, unapproved and misbranded prescription drugs to U.S. consumers. We will be using the FDA’s public list of these sites, which is updated on an ongoing basis.
We currently use similar warnings for sites that are reasonably suspected of containing malware. As with malware, we will not prevent a user from visiting the site. However, the warning will caution users of the risks, and provide links to resources where the user can learn more about selecting a safe online pharmacy. " Bing Search to Warn of Unsafe Online Pharmacies