Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.
Q: In studies with rats and mice, Victoza ® and medicines that work like Victoza ® caused thyroid tumors, including thyroid cancer. It is not known if Victoza ® will cause thyroid tumors or a type of thyroid cancer called medullary thyroid carcinoma (MTC) in people. Who should not use Victoza ®? Do not use Victoza ® if: These regimens often involve a long- or intermediate-acting insulin such as NPH insulin to provide a basal insulin level (a relatively steady background level of insulin throughout the day). A rapid- or short-acting insulin is added to provide bolus doses to control the spike in blood sugar that occurs after meals. Intermediate-acting insulin. What it’s called: Humulin N (NPH), Novolin N (NPH) Intermediate-acting insulin can control blood sugar levels for about 12 hours or longer, so it can be used overnight. It begins to work within one to four hours, and peaks between four and 12 hours, depending on the brand. Humulin N (insulin isophane) is a man-made form of a hormone that is produced in the body. Insulin is a hormone that works by lowering levels of glucose (sugar) in the blood. Insulin isophane is an intermediate-acting insulin that starts to work within 2 to 4 hours after injection, peaks in 4 to 12 hours, and keeps working for 12 to 18 hours. Humulin N is used to improve blood sugar control in adults and children with diabetes mellitus. Think of it like little drops of insulin wrapped in a coating that slowly dissolved, letting the insulin work for 14 hours or so. The problem with NPH was that it looked a bit like the first leg of a rollercoaster, it had a high peak and a long tail. People with type 1 diabetes make very little or no insulin in their bodies. They must take insulin every day to stay alive. Type 2 Diabetes. People with type 2 diabetes do not make enough insulin or do not use it well enough. Some people with type 2 diabetes can use pills or other medicines that are injected into the body. Other people with type 2 also need insulin to help control their diabetes. Hey.. Was just wondering how long it takes for everyones insulin to kick in. Mine seems to take about 5 hours and was just wondering if anyone else took this long. Oh and I mean fast-acting.. At the moment i'm on Novorapid and if this is not 'normal' what I could do to improve the time taken. Other factors, such as your other health conditions, medication costs, and your daily schedule may play a role in what diabetes medicine you take. Type 1 diabetes If you have type 1 diabetes, you must take insulin because your body no longer makes this hormone. You will need to take insulin several times during the day, including with meals. This group includes insulin glargine (Lantus), insulin detemir (Levemir), and NPH (Humulin N and Novolin N). How Does Insulin Work? The graphs here show at a glance how long it takes for each type of insulin to begin working, when the dose reaches its peak, and how long it lasts. Insulin Basics. There are different types of insulin depending on how quickly they work, when they peak, and how long they last. Insulin is available in different strengths; the most common is U-100. All insulin available in the United States is manufactured in a laboratory, but animal insulin can still be imported for personal use. Query: how long does it take for nph to work
A: 
It takes one to four hours for NPH, Normal pressure hydrocephalus to work.