Federal law allows compounding pharmacies to make copies of name brand drugs while there’s a supply shortage. But there's a loophole.

The drugs are expensive out of pocket. Even with insurance, high co-pays can also limit who has access to them.

Weight Watchers holds its annual shareholder meeting today, which includes a presentation by departing board member Oprah Winfrey.

Old laws and the high cost of these drugs have been obstacles for wider coverage.

The FDA’s approval of Eli Lilly’s Zepbound could signal more insurers paying for the use of such drugs. Demand is great so the costs could be big and push up premiums.