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Medically reviewed by Dr. Adrian Rawlinson
Written by our editorial team Last reviewed 05 February 2024
Saxenda (Liraglutide) is a prescription-only injectable medicine used for weight loss and keeping weight off. It is used in obese people with a body mass index (BMI) of 30 or more or in patients with a BMI of 27 or more if they also have weight-related medical problems.
Saxenda is prescribed with a reduced calorie diet and increased physical activity.
Doctors prescribe Saxenda as a weight loss shot in adult patients with a body mass index (BMI) of:
Saxenda is also indicated for use in people aged 12-17 years with a body weight above 132 pounds (60 kg) and obesity. Here at SpeedyHealth, our doctors are only able to prescribe Saxenda for patients over 18 years old.
Saxenda contains the active ingredient Liraglutide. Liraglutide is sold under the brand names Victoza and Saxenda among others. Victoza is a medication used to lower blood sugar levels in people with type 2 diabetes.
Saxenda is a GLP-1 receptor agonist which works in the brain to decrease appetite, resulting in reduced food intake.
In the body, a hormone called GLP-1 reduces food intake, appetite and hunger and promotes the feeling of fullness. Saxenda is 97% similar to this naturally occurring hormone and mimics these effects.
As a result, patients using this drug feel satisfied and less hungry. They then eat less food, which leads to weight loss.
In clinical trials, Saxenda has proved to be very effective in achieving significant weight loss. In a study of 3,731 adult patients:
Wegovy is an alternative injectable weight loss medication. It contains the active ingredient Semaglutide. This works in the same way as Saxenda, by reducing your appetite so you eat fewer calories and lose weight.
Like Wegovy, Ozempic contains the active ingredient Semaglutide. However, it is prescribed to improve blood sugar levels in adults with type 2 diabetes or to reduce the risk of conditions such as heart attacks, strokes, or death in adults with type 2 diabetes with known heart disease.
Saxenda is an injection given once daily under the skin (subcutaneously) from a multi-dose injection pen. You should use this medication as directed by your doctor.
If you are unsure how to use it, ask your doctor or follow the instructions in the patient package insert included with your order. To use Saxenda correctly, follow these steps:
Step 1. Prepare your pen with a new needle
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Step 2. Check the medication flow each time you use a new pen
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Step 3. Select the correct dose
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Step 4. Inject your dose
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Step 5. After your injection
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Saxenda is available as a clear and colourless solution for injection in a pre-filled pen. Each pen contains 3mL of solution and can deliver doses of 0.6mg, 1.2mg, 1.8mg, 2.4mg or 3.0mg.
This medicine is given as a daily injection, with the dose changing each week until you reach the recommended daily maintenance dose of 3mg.
Here is an example of the usual Saxenda dosing schedule:
After 16 weeks of treatment, your doctor will evaluate the change in your body weight. If you have not lost at least 4% of your baseline body weight by this time, your doctor may recommend that you stop treatment. This is because Saxenda may not be the best option for you. You may discuss alternatives with your doctor.
Increasing the Saxenda dose slowly can reduce the likelihood of experiencing side effects such as nausea.
To be prescribed this medication, you must have a BMI of 30 or more. Otherwise, if you have a BMI of 27 or more with other weight-related health conditions, you may be able to use this medicine.
You should not use this medicine if:
Before taking this medicine, tell your doctor about all of your medical conditions, especially if you:
Saxenda slows stomach emptying which may affect the way some medicines work. Tell your doctor about all the medicines you take including prescription medicines, over-the-counter medicines, natural health supplements and more.
Do not use Saxenda if you are taking other GLP-1 receptor agonists, such as Victoza. Both of these medicines have the same active ingredient and should not be used together or with other GLP-1 receptor agonist medicines.
Ensure to tell your doctor if you take:
This is not a complete list of interactions. For a full list, refer to your patient package insert.
There are no known drug interactions between Saxenda and alcohol. However, you should avoid or limit drinking alcohol during Saxenda treatment. This is because drinking alcohol while taking Saxenda may worsen some of its side effects, such as nausea, headache, and dizziness.
Like any prescription treatment, this medication can cause side effects.
The most common side effects of Saxenda include:
There can also be local injection site reactions, such as bruising, redness, and tenderness.
Serious side effects whilst using this medication are rare. If you experience any of the following, you should seek immediate medical attention:
You should seek immediate medical help if you experience an allergic reaction. Symptoms include breathing difficulties, rashes, and swelling of the face and throat.
You can buy Saxenda online from SpeedyHealth. Before you purchase this medicine, you will be asked to complete a consultation, this is a requirement.
One of our board-certified doctors will review your consultation and check your medical history before prescribing this medicine.
Here at SpeedyHealth, we provide a quick and easy prescription service. We have very high standards for our service. Our top priority is your health and well-being.