Regarding the vague prescription drug ads you all were mentioning, if an advertiser promotes a drug and describes what it's for and it's benefits, the advertiser must also disclose side effects and contraindications. These are called "fair balance" regulations. "Reminder" ads that only mention the drug's name are exempt from "fair balance" regulations. Pharmaceutical companies use the reminder ads to circumvent the "fair balance" regs and downplay the negative aspects of the drug.
Some drug advertisements, such as one for Allegra, were removed because the content of the commercial (a woman strolling through a wheat field without sneezing) made it easy to decipher what the drug was for (allergies) but the ad didn't mention side effects.
Probably more than you all wanted to know, but figured I'd share.