jackk johnnThe high cost of Jardiance is largely due to the extensive research, development, and marketing expenses incurred by the pharmaceutical company. Additionally, patents protect Jardiance from generic competition, allowing the manufacturer to set higher... moreThe high cost of Jardiance is largely due to the extensive research, development, and marketing expenses incurred by the pharmaceutical company. Additionally, patents protect Jardiance from generic competition, allowing the manufacturer to set higher prices.jardiance printable coupon