Diabetes Home > Victoza Warnings and Precautions

Victoza may increase your risk of pancreatitis; let your healthcare provider know right away if you develop symptoms of pancreatitis, such as vomiting. Other warnings and precautions with Victoza apply to people with alcoholism, pancreatitis, or liver disease. This medication should not be taken by people with certain medical conditions, such as multiple endocrine neoplasia syndrome type 2.

What Should I Tell My Healthcare Provider Before Taking Victoza?

Prior to taking Victoza® (liraglutide), tell your healthcare provider if you have:
Also, let your healthcare provider know if you are:
  • Breastfeeding
  • Pregnant or thinking of becoming pregnant.
Make sure to tell your healthcare provider about any medications you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.

Specific Precautions and Warnings With Victoza

Warnings and precautions to be aware of prior to taking Victoza include the following:
  • Very preliminary data suggests incretin mimetics, such as Victoza, may increase the risk of precancerous cellular changes (called pancreatic duct metaplasia) in people with type 2 diabetes. Researchers are continuing to study the possibility that incretin mimetics might increase the risk of pancreatic cancer, although at this time there is not enough information to know for sure if there is any increased risk.
  • Even though it is taken by injection, Victoza is not insulin and should not be used to treat type 1 diabetes or diabetic ketoacidosis.
  • In laboratory rats and mice, this medication causes thyroid tumors, which may sometimes be cancerous. It is unknown if Victoza causes such tumors in humans. Be sure to let your healthcare provider know right away if you develop any signs or symptoms of a thyroid tumor, such as:
    • A lump in the neck
    • Difficulty swallowing
    • Shortness of breath
    • A persistent hoarse voice.
  • Victoza may increase the risk of pancreatitis. You may be at a higher risk for pancreatitis if you have ever had it before, if you have had gallstones, or if you have a history of alcoholism. Let your healthcare provider know immediately if you develop any signs or symptoms of pancreatitis, such as:
    • Severe, persistent abdominal pain (stomach pain), sometimes radiating to the back
    • Vomiting.
  • When used by itself, Victoza is not particularly likely to cause dangerously low blood sugar (hypoglycemia). However, combining it with insulin or oral medications that increase insulin production appears to increase this risk (see Victoza Drug Interactions for further information).
  • Victoza has not been thoroughly studied in people with liver disease or diabetic gastroparesis. If you have any of these conditions, your healthcare provider will probably need to monitor you more closely.


  • Although studies have not shown Victoza to be toxic to the kidneys, there have been a few reports of kidney failure (or worsening of preexisting kidney failure) in people taking Victoza. This medication may need to be used cautiously in people with kidney disease. 
  • It is not known if this medicine passes through breast milk. Therefore, if you are breastfeeding or plan to start, discuss this with your healthcare provider prior to taking the drug (see Victoza and Breastfeeding).
  • Victoza is considered a pregnancy Category C medication. This means that it may not be safe for use during pregnancy, although the full risks are currently unknown (see Victoza and Pregnancy).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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