Saxenda Weight Loss Pens

Saxenda (liraglutide) is a daily weight loss injection that helps adults with a BMI of 30 or above lose weight by reducing appetite and making you feel fuller for longer. When combined with a low-calorie diet and exercise, Saxenda weight loss pens can help you lose weight and keep it off. It works by mimicking the hormone GLP-1, which naturally controls hunger. However, the manufacturer plans to phase out Saxenda in favour of Wegovy, a once-weekly injection with greater weight-loss potential. So, if your preferred treatment is currently Saxenda, it might be the ideal time to reconsider your options. For more information on the differences between Wegovy and Saxenda or how to switch to Wegovy from Saxenda, read our guides.

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Saxenda Pens | Saxenda Australia

Always use your Saxenda pen exactly as described in the patient information leaflet or as your doctor / Chemist4U pharmacist has told you. For detailed instructions on how to use Saxenda pen, including how to dispose of an empty pen and needles, please read our ‘Saxenda dosage’ guide.

Saxenda side effects

Like all medicines, this product may cause side effects in some people, but these won’t affect everybody. Common side effects may include:

Nausea & vomiting
Diarrhoea & constipation
Headaches

For more information on side effects, including potentially serious side effects, refer to the patient information leaflet or read our in-depth ‘Saxenda side effects’ guide for helpful advice on how to ease any symptoms of Saxenda.

Warnings 

Do not use this product if you’re allergic to liraglutide or any of the other listed ingredients.
It is only suitable for adults aged 18 years and over.
Do not use if you are pregnant or breastfeeding. Contraception is recommended while using this product.
Inform your prescriber if you’re taking any other medication.

How to store Saxenda

Store unused pens in the fridge (2-8°C). Do not freeze. Once in use, keep for up to 1 month below 30°C or in the fridge. Always cap the pen to protect it from light. Do not use past the expiry date. Keep out of reach of children. Dispose of used pens safely and use a sharps box for needles.

Saxenda vs Wegovy

Both belong to the GLP-1 receptor agonist class of medications. They mimic a naturally occurring hormone (GLP-1) that helps regulate appetite and digestion, making you feel fuller and reducing calorie intake. But despite this similarity, they differ in structure, dosing, and outcomes.

Active Ingredients & How They Work

• Saxenda (liraglutide): A daily injectable that mimics GLP-1 to suppress appetite and slow gastric emptying.

• Wegovy (semaglutide): A weekly injectable with a longer half-life that also reduces hunger, slows stomach emptying, and has stronger appetite-suppressing effects.

Both affect the hypothalamus (the “hunger centre” of the brain), but semaglutide (Wegovy) stays in the body longer and has a stronger overall effect

Both Saxenda and Wegovy are evidence-based options for medically managed weight loss. If your goal is maximum weight reduction with a once-weekly regimen, Wegovy typically outperforms Saxenda in clinical studies. Saxenda, however, can still be a valuable option, particularly where coverage or personal preference for daily dosing matters.