Democratic lawmakers look to cap what patients pay for insulin Sean Kirkby 5 years ago Two bottles of insulin are seen at the home of Jack Christensen. Humalog, left, costs about $400 a bottle and Novolog, right, costs about $300 a bottle, his parents said. Jack uses three to four bottles of insulin a month. Without insurance, the family estimates they would have to pay between $15,000 to $30,000 a year for insulin. Democratic lawmakers are circulating legislation that aims to cap how much patients with insurance pay for insulin.To access this content, you must purchase a Premium membership, or log in if you are a member.