What do 'Ask your doctor' ads actually accomplish?

Companies are spending big bucks advertising weight-loss drugs like Rybelsus. But in Canada, "reminder ads" can give only the medication's name, not what it's for, telling people to ask their doctor for more. Special guest Terry O'Reilly, host of CBC's Under the Influence, says it can result in bad ads that turn people off, while pharmaceutical policy expert Barbara Mintzes says reminder ads can do more harm than good.