Ninety percent of the prescriptions dispensed in the U.S. are for generics, according to one study.
Customers often don't know the price until the pharmacy rings it up.
Blink Health quotes prices for generic drugs that are lower than what pharmacies typically charge customers paying out of pocket. Ten of the country's 15 most commonly prescribed drugs cost less than $10 on Blink Health, including generic versions of drugs like Lipitor and the diabetes drug Metformin.
With a number of plans demanding that customers pay more of their own drug costs, it can add up to thousands in out-of-pocket expenses a year.
Another site, Good RX, operates much the same way.
Good RX and Blink Health get their prices by using the networks of pharmacy-benefit managers, which manage drug plans for insurers and large employers. Customers order online but pick up their prescription at the pharmacy of their choice.