To denounce or condemn something as dangerous or harmful; to prohibit, forbid.
The public is harmed when lawmakers proscribe the use of a product that has been proved safe and useful. Inevitably, manufacturers will turn to—and consumers will be exposed to—alternatives that are likely to be less well tested. Simply put, [Sen. Diane] Feinstein's bill represents bad science, bad law and disregard for the public interest.
—Henry I. Miller “Stop Scaring Us: Feinstein's Bill to Ban Some Chemicals in Toys Might Help Rats, But It's Bad for People” Los Angeles Times, December 18, 2007