Temple pulmonologist Dr. Jamie Garfield says the proposed regulation is an effective harm reduction strategy, but suggests it will take a significant lobbying effort for it to go into effect.

The FDA's proposed rule would slash nicotine levels in cigarettes, most cigars and other combustible tobacco products, but not vapes, hookahs or Zyn.

A proposed FDA rule would set nicotine levels on tobacco products at less than half the current average and could save millions of lives, proponents say.