Remember cigarettes?
Alcohol?
Of course the government can end drug ads.
Cigarettes was done via FCC rule and didn’t apply to cable, satellite, print or the internet. And even the broadcast ban didn’t stop the Winston Cup.
The hard liquor thing was actually self imposed. And ended in 1996 when Seagram decided it was silly and bought ad time on cable.
No the government canNOT end drug ads.