Mechanism of action
Like semaglutide, liraglutide is a GLP-1 agonist. It acts on the hypothalamus, a specific region of the brain that helps to regulate appetite and food cravings. Liraglutide helps to decrease feelings of hunger and increase feelings of satiety after a meal. Doing such helps you to eat less food, thereby promoting weight loss 3.
Liraglutide can cause similar GI side effects to semaglutide, including constipation, diarrhea, nausea, and vomiting. It can also cause increased heart rate, headache, and low blood sugar. As it is available as a subcutaneous injection, injection-site reactions (such as redness, rash, or itchiness) can occur 2.