"patents" can't "back" drugs

So on channel USA (DirecTV #242), Leptoprin (obesity pills) ads claim that this is a “USA-patent backed product”.

Now, a patent can’t “back” a drug. The FDA “backs” (approves/proves) drugs. All a patent does is assuring the pharmaceutical corporation has exclusive rights over the drug as an intellectual property. You can’t get away that easy, na na.