12 October 2016 - When a furore erupted over the rapidly rising price of EpiPens this summer, the drugmaker Mylan offered a solution: a coupon for the expensive drug.
People who need the EpiPens to protect themselves from life-threatening allergic reactions could use the coupon to get up to $300 off at the pharmacy counter if their insurance plan has a deductible or a co-payment.
It is a good deal for those people. But these seemingly generous coupons may be making drug costs higher for everyone. New research suggests that co-payment coupons can actually increase total health care spending by encouraging patients to choose more expensive drugs when there are lower-priced substitutes available. Those high costs can then boomerang back to patients in the form of higher insurance premiums.