Victoza (liraglutide) is a prescription drug approved by the FDA for type 2 diabetes. It is also used off-label for weight loss. Note that off-label use is generally not covered by health insurance.
Victoza belongs to a class of drugs known as glucagon-like peptide-1 (GLP-1) receptor agonists. It is only available under its brand name (Victoza). There are no generic versions available.
Victoza is only available via prescription from a licensed healthcare provider.