Neutral protamine Hagedorn (NPH) insulin (named after the scientist Hans Christian Hagedorn who invented it) peaks in about 6 to 8 hours, with a duration of up to 12 hours. This type of insulin is ...
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What Is NPH Insulin?

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 ...