why do medication commercials feel the need lately to tell you not to use it if you're allergic to it

this didn't used to happen, who was stupid enough to do it

It did always happen, but the answer to your precise question is: "Way, way more people than you'd think possible."

Because they don't mean the API usually, the actual drug, but instead the inactive ingredients.

it uses the name of the drug though?

"if you're allergic to [drug], don't take [drug]"

Good point. In that case I have NO IDEA. I presume it's because of the inactive ingredients but have no proof.

it may be that some take it despite the allergies bc it's still somewhat effective for them

ohh

kinda like "eh, the effectiveness is worth the side effects" but the allergic reactions are something they consider a side effect