Me landing on Gleba.

The latter is called “doctor shopping” and it absolutely happens.

The goal of the advertisement is to have the patient be interested, not the doctor. Admittedly some doctors are not up to date on the latest obscure cutting edge treatments, so there is some possible benefit. However, most doctors are capable of performing cost benefit analyses and understanding side effects, but when a patient comes in asking for a medication, it definitely tips the scales towards the medication.