The 2009 Compensation Data Insurance survey by Compdata Surveys found high-deductible health plans had the highest prescription medicine copay, $49, compared to non-formulary copays on PPO plans of $47.
Formularies are lists of medications that are covered by an insurer's health care plan.
Over the last 3 years, the prescription copay cost on PPO plans has increased by 10.4%, reports Compdata, Kansas City, Kan., a unit of Dolan Technologies Corp., Olathe, Kan.