US and New Zealand are the only two countries in the world that allow prescription drug advertising, also called direct-to-consumer (DTC) advertising.

In the US, drug manufacturers can advertise in print, TV, radio, web, or any other media as long as they follow the following FDA guidelines:

• The Ad is truthful (ie, no misrepresentation or mislabeling)
• Presents benefits and harms in a balanced manner (ie, balanced)
• Provides drug’s generic name
• Provides all approved uses (ie, indications)

FDA does not typically reviews drug advertisements before launch; although, some manufacturers may choose to seek FDA review/clearance before launch. FDA only regulates after the Ads have been released, and it has authority to ask manufacturers to withdraw an Ad if they consider it false, misleading, misrepresenting, mislabeled, or biased.

Public could also report false/misleading/biased Ads to the Office of Prescription Drug Promotion (OPDP) by calling 1-301-796-1200. OPDP is a body within the FDA that reviews drug advertisements.

READ More here, How are Prescription Medication Advertisements Regulated in the U.S.?