My DH takes his at night after diner because his sugar is higher in the morning, his endocrinologist told him to take it at night after dinner, it would help with the morning numbers which it has tremendously.
I found this on the website, it explains what is it.
If you have type 2 diabetes, Victoza® may help important cells in your pancreas that help control blood sugarcalled beta cellswork the way they should. Victoza® helps lower your blood sugar, and while not a weight-loss product, may help you lose some weight.
Learn more
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How Victoza® Works to Manage Your Type 2 Diabetes
Victoza® is 97% similar to a hormone made in your body, called GLP-1.
When you eat, GLP-1 helps the beta cells in your pancreas release the right amount of insulin to move sugar from the blood into the cells. Victoza® has the same effect and also helps slow down the time it takes for food to leave your stomach, which can help your body manage your blood sugar level. Victoza® also blocks the liver from releasing too much sugar by lowering the amount of another hormone, called glucagon