[UweSchmidt]

For prescription drugs this wouldn't make sense. Only a doctor is qualified and legaly allowed to prescribe a drug. They have a tough job of making difficult diagnoses, weighing pros and cons for each treatment and dealing with a human in their specific life situation.

A patient that walks into a doctor's office asking for a certain medicine they heard about on TV distorts the process. After all the patient needs to believe in the treatment and might shop around for the doctor that gives them what they want.

Learning about a product in a medical context can't really happen in an ad. A doctor would have to go to a conference or read journals to figure out the latest science on treatments, and can then go and then choose an appropriate drug. They would probably look for the one that has 20mg of X in it, regardless of brand name or hype.