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№ 058

Liraglutide (Saxenda / Victoza)

Daily GLP-1 receptor agonist. FDA-approved 2010 (Victoza, T2D) and 2014 (Saxenda, obesity). The first wave of modern GLP-1 weight-loss therapy and direct predecessor to Semaglutide.

Fat Loss
Evidence: Strong
Half-life
~13 hours
Route
Subcutaneous
Cycle
Open-ended, titrate over months
Schedule
Once daily
In plain English

Liraglutide is the daily-injection GLP-1 that came before Semaglutide. Sold as Saxenda for weight loss and Victoza for diabetes. Same family as Wegovy/Ozempic but you inject it every day instead of weekly. Less convenient, but covered by some insurance plans that don't cover the weekly versions.

Status & legality
Natty?
Not natty
FDA
Approved

Approved as Victoza (2010, type 2 diabetes) and Saxenda (2014, obesity). Both Novo Nordisk.

Compounding
Approved drug

Available as an FDA-approved drug, not a compounded peptide.

WADA
Not listed
Prescribed

Yes — primary care, endocrinology, and obesity-medicine specialists prescribe widely.

Who it's for

  • →Patients on insurance plans that cover Saxenda but not Wegovy
  • →Users who don't tolerate weekly Semaglutide titration
  • →Educational reference for the GLP-1 class lineage

What to expect

  1. Week 1

    Appetite drops. Mild nausea common.

  2. Week 4

    First titration step. ~2-4 lb down typical.

  3. Week 8

    Cumulative loss 5-10 lb for most users.

How it works (mechanism)

Daily-injection GLP-1 agonist with fatty-acid modification that allows albumin binding for ~13-hour half-life. Same receptor as Semaglutide; shorter duration means daily injection.

Dosing protocol

Saxenda obesity: titrate 0.6 → 1.2 → 1.8 → 2.4 → 3.0 mg daily, weekly steps. Victoza T2D: 0.6 → 1.2 → 1.8 mg daily.

Stacks well with

Standalone is the norm

Side effects

01Nausea (often more pronounced than weekly Semaglutide)
02Constipation or diarrhea
03Injection-site reaction
04Pancreatitis (boxed warning)
05Gallbladder issues

When NOT to use

  • ⚠MTC / MEN-2 history (boxed warning)
  • ⚠Pancreatitis history
  • ⚠Pregnancy / nursing
  • ⚠Severe hypersensitivity

Bloodwork to monitor

  • • Lipid panel
  • • ALT/AST
  • • A1C if metabolic context

Common mistakes

  • • Skipping titration steps
  • • Treating it as Semaglutide-equivalent (daily vs weekly is a real burden difference)
  • • Stopping abruptly without a maintenance plan

Drug & supplement interactions

  • ⚠Insulin and sulfonylureas: dose reduction usually needed to prevent hypoglycemia
  • ⚠Slows gastric emptying — affects oral medication absorption
  • ⚠Avoid alcohol during titration

Educational only. User-specific dosing is between you and a qualified provider.

Frequently asked

What is Liraglutide (Saxenda / Victoza)?+
Liraglutide is the daily-injection GLP-1 that came before Semaglutide. Sold as Saxenda for weight loss and Victoza for diabetes. Same family as Wegovy/Ozempic but you inject it every day instead of weekly. Less convenient, but covered by some insurance plans that don't cover the weekly versions.
Is Liraglutide (Saxenda / Victoza) FDA approved?+
Approved as Victoza (2010, type 2 diabetes) and Saxenda (2014, obesity). Both Novo Nordisk.
Is Liraglutide (Saxenda / Victoza) banned by WADA?+
Liraglutide (Saxenda / Victoza) is not currently on the WADA prohibited list.
Are you still natty after taking Liraglutide (Saxenda / Victoza)?+
No. Liraglutide (Saxenda / Victoza) is a performance-enhancing peptide and would disqualify a strict natty claim.
Do doctors prescribe Liraglutide (Saxenda / Victoza)?+
Yes — primary care, endocrinology, and obesity-medicine specialists prescribe widely.
What's the typical dose of Liraglutide (Saxenda / Victoza)?+
Saxenda obesity: titrate 0.6 → 1.2 → 1.8 → 2.4 → 3.0 mg daily, weekly steps. Victoza T2D: 0.6 → 1.2 → 1.8 mg daily.
What are the side effects of Liraglutide (Saxenda / Victoza)?+
Common side effects include: Nausea (often more pronounced than weekly Semaglutide); Constipation or diarrhea; Injection-site reaction; Pancreatitis (boxed warning). Less common effects and full safety details are on the entry page.
How long until Liraglutide (Saxenda / Victoza) starts working?+
Appetite drops. Mild nausea common.

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GLP-1 agonist. The original wave. Sold as Ozempic / Wegovy.

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Triple agonist (GLP-1 + GIP + glucagon) from Eli Lilly. In trials it outperforms Tirzepatide for weight loss.

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Cagrilintide

Long-acting amylin agonist. Different appetite-control pathway than the GLP-1 drugs. Often paired with Semaglutide as 'CagriSema' to break GLP-1 plateaus.