Victoza^® may cause serious side effects, including:

• Possible thyroid tumors, including cancer. Tell your health care provider if you get a lump or swelling in your neck, hoarseness, trouble swallowing, or shortness of breath. These may be symptoms of thyroid cancer. 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.

Do not use Victoza^® if:

• you or any of your family have ever had MTC or if you have an endocrine system condition called Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
• you are allergic to liraglutide or any of the ingredients in Victoza^®. See symptoms of serious allergic reaction in "What are the possible side effects of Victoza^®?"

Victoza^® (liraglutide) injection 1.2 mg or 1.8 mg is an injectable prescription medicine used:

• along with diet and exercise to improve blood sugar (glucose) in adults and children who are 10 years of age and older with type 2 diabetes mellitus
• to reduce the risk of major cardiovascular events such as heart attack, stroke or death in adults with type 2 diabetes mellitus with known heart disease

Victoza^® is  not recommended for people who take liraglutide or other medicines called glucagon-like peptide-1 (GLP‑1) receptor agonists. It is not known if Victoza^® is safe and effective to lower blood sugar in children under 10 years of age.

Before using Victoza^®, tell your health care provider if you:

• have or have had problems with your pancreas
• have severe problems with your stomach, such as slowed emptying of your stomach (gastroparesis) or problems with digesting food
• are scheduled to have surgery or other procedures that use anesthesia or deep sleepiness (deep sedation)
• are pregnant or breastfeeding or plan to become pregnant or breastfeed

Tell your health care provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, herbal supplements, and other medicines to treat diabetes, including insulin or sulfonylureas.

• Inject under the skin of your stomach (abdomen), thigh, or upper arm. Do not inject Victoza^® into a muscle or vein
• Change (rotate) your injection site within the area you choose with each injection to reduce your risk of getting lumps under the skin (cutaneous amyloidosis). Do not use the same site for each injection
• Use Victoza^® 1 time each day, at any time of the day
• Do not mix insulin and Victoza^® together in the same injection
• You may give an injection of Victoza^® and insulin in the same body area (such as your stomach area), but not right next to each other
• Do not share your Victoza^® pen with other people, even if the needle has been changed. You may give other people a serious infection, or get a serious infection from them

Victoza^® may cause serious side effects, including:

• inflammation of your pancreas (pancreatitis). Stop using Victoza^® and call your health care provider right away if you have severe pain in your stomach area (abdomen) that will not go away, with or without nausea or vomiting. Sometimes you may feel the pain from your abdomen to your back
• low blood sugar (hypoglycemia). Your risk for getting low blood sugar may be higher if you use Victoza^® with another medicine that can cause low blood sugar, such as a sulfonylurea or insulin. In children who are 10 years of age and older, the risk for low blood sugar may be higher with Victoza^® regardless of use with another medicine that can also lower blood sugar. Signs and symptoms of low blood sugar may include: dizziness or lightheadedness, blurred vision, anxiety, irritability or mood changes, sweating, slurred speech, hunger, confusion or drowsiness, shakiness, weakness, headache, fast heartbeat, and feeling jittery
• dehydration leading to kidney problems. Diarrhea, nausea, and vomiting may cause a loss of fluids (dehydration) which may cause kidney problems. It is important for you to drink fluids to help reduce your chance of dehydration. Tell your healthcare provider right away if you have nausea, vomiting, or diarrhea that does not go away
• severe stomach problems. Stomach problems, sometimes severe, have been reported in people who use Victoza^®. Tell your healthcare provider if you have stomach problems that are severe or will not go away
• serious allergic reactions. Stop using Victoza^® and get medical help right away if you have any symptoms of a serious allergic reaction, including swelling of your face, lips, tongue or throat, problems breathing or swallowing, severe rash or itching, fainting or feeling dizzy, or a very rapid heartbeat
• gallbladder problems. Gallbladder problems have happened in some people who take Victoza^®. Tell your healthcare provider right away if you get symptoms of gallbladder problems, which may include pain in the upper stomach (abdomen), fever, yellowing of skin or eyes (jaundice), or clay-colored stools
• food or liquid getting into the lungs during surgery or other procedures that use anesthesia or deep sleepiness (deep sedation). Victoza^® may increase the chance of food getting into your lungs during surgery or other procedures. Tell all your healthcare providers that you are taking Victoza^® before you are scheduled to have surgery or other procedures

The most common side effects of Victoza^® may include nausea, diarrhea, vomiting, decreased appetite, indigestion, and constipation.

Victoza^® is a prescription medication.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1‑800‑FDA‑1088.