Reviewed by Dr Sarah Mitchell, PhD · Editorial Board
Fake Saxenda pens — UK identifiers
Counterfeit Saxenda (liraglutide 3 mg) pens are rarer than fake Wegovy, Ozempic, or Mounjaro, but they do appear in UK and EU enforcement reporting. This page covers genuine-product identifiers — particularly the daily-injection multi-dose format — and the action ladder if your supply doesn’t look right.
Why fewer fakes than other GLP-1s
Saxenda’s market has shrunk since Wegovy and Mounjaro launched: lower trial-effect weight loss, daily rather than weekly injection, and NICE pathways favouring the newer products. Less consumer demand means less counterfeiter interest. But fakes do appear — patients pushed off lawful UK supply by waiting lists or cost still buy Saxenda from unregulated routes.
Genuine Saxenda — what to check
- Outer carton: Novo Nordisk-branded, “Saxenda 6 mg/mL solution for injection in pre-filled pen” on the label, UK English Patient Information Leaflet inside, tamper-evident seals.
- Pen body: Pre-filled multi-dose pen with a dial that selects from 0.6 to 3.0 mg. Recognisable Novo Nordisk pen design. Each pen contains 3 mL of solution (18 mg of liraglutide total).
- Solution: Clear, colourless. Particulates or discoloration are red flags.
- Dosing instructions: Daily injection, titrating weekly from 0.6 → 1.2 → 1.8 → 2.4 → 3.0 mg. Weekly-injection instructions on a pen labelled Saxenda are a counterfeit signal.
Counterfeit patterns
- Repackaged non-Novo cartons with Saxenda-style labels.
- Missing PIL or non-English PIL only.
- Mismatched batch number between carton and pen.
- Pens with incorrect dose-dial mechanism (Saxenda’s dial steps to specific increments — wrong steps = wrong pen).
- Sometimes substituted with a different liraglutide product (Victoza, max 1.8 mg) — same active ingredient but different licence and dose range.
What to do if you suspect a fake
- Don’t inject the next dose.
- Photograph carton, pen, PIL or absence, shipping label, and any correspondence with the seller.
- If supplied via UK GPhC-registered pharmacy — contact them and ask them to investigate the batch.
- Report to MHRA via Yellow Card and the GOV.UK report-a-problem form.
- If you’ve injected, contact your prescriber or NHS 111.
Red-flag claims
If you see wording like this on a seller, clinic, or social-media advert, treat it as a warning sign rather than a benefit.
“Saxenda — UK delivery, no prescription required”
POM supply without prescription is unlawful and is the route counterfeit Saxenda has taken to reach UK patients.
“Generic liraglutide pens — same as Saxenda at half price”
‘Generic liraglutide’ supply isn't a UK-licensed product. Saxenda is the brand; alternatives marketed this way are unlicensed-medicine supply.
“Saxenda from our EU pharmacy partner”
Cross-border supply is the recurring UK counterfeit-pen route. Country of origin doesn't validate the product.
“Use Victoza for weight loss — same drug as Saxenda”
Same active ingredient but a different UK licence and different max dose (1.8 mg vs 3.0 mg). Off-label substitution isn't appropriate self-administration.
Sources & further reading
- MHRA Drug Safety Update — gov.uk
- Report a problem with a medicine or medical device — gov.uk
- Yellow Card — yellowcard.mhra.gov.uk
- Action Fraud — actionfraud.police.uk
- NHS — obesity treatment — nhs.uk