Humalog (insulin lispro) and Humulin N (insulin isophane human) are brand-name prescription* medications. They’re approved by the Food and Drug Administration (FDA) to help treat type 1 and type 2 ...

Humulin N can cause certain side effects (also called adverse effects), some of which are more common than others. These side effects may be temporary, lasting a few days to weeks. However, if the ...

NPH insulin is an older type of synthetic insulin that helps people with diabetes control their blood sugar. It’s typically injected once or twice a day at regular times and is designed to deliver a ...