Medications are stored on shelves at a pharmacy in Los Angeles. States have gotten creative in trying to lower patients’ prescription drug copays by targeting different parts of the drug supply chain.

Health care costs keep rising, and that’s putting an enormous strain on small businesses. In one recent survey, nearly 90% of small firms said medication costs are too high. Another study found that ...

For decades, America’s drug-price debate has centered on a fundamental tension: How do policymakers encourage expensive research and development, while ensuring that companies keep final prices ...