GLP-1 Medications for Weight Loss and Diabetes

Wegovy, Zepbound and Saxenda are the most popular among GLP-1 agonists as weight-loss medicines

Medically Reviewed By Mostafa Elhennawy MS, Pharm D

Glucagon-like peptide 1 (GLP-1) agonists gained fame as a very effective treatment for people with Type 2 diabetes and/or obese individuals.

Despite clinically proven benefits, it is very important to review the patient’s medical history and discuss potential risks with a healthcare provider prior to deciding what weight loss medication is the right choice.

In this article we will discuss the most popular weight-controlling GLP-1 medications as well as GLP-1 medications that can be beneficial for Type 1 Diabetes.

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3 Popular Weight Loss GLP-1 Medications

GLP-1 agonists are mimicking the action of a gut-brain hormone GLP-1 that represents an endogenous satiation signal and has widespread metabolic effects, such as  promoting glucose homeostasis and weight loss. They are exerting their weight-reducing and glucose-lowering effects by increasing the production of insulin and slowing down the digestion of food. Their effects can vary depending on which GLP-1 is used and dosage so they should be prescribed based on specific patient profile and medical history.

Wegovy (Semaglutide)

Wegovy is FDA approved injectable treatment for weight management and cardiovascular risk reduction in adults with obesity and overweight. Its active ingredient, Semaglutide, reduces cravings and decreases appetite like other GLP-1 agonists, which combined with a healthy diet and regular exercise leads to 10-15% weight loss.

Wegovy comes in 5 different dose strengths taken weekly for 4 weeks each:

  • 0.25 mg is the starting dose
  • 0.5 mg the step up dose
  • 1 mg the step up dose
  • 1.7 mg the maintenance dose
  • 2.4 mg the maintenance dose.

Health provider decides which dose will be used for weight maintenance.

Zepbound (Tirzepatide)

Zepbound is FDA approved powerful appetite-suppressing treatment for obesity or overweight adults that in conjunction with healthy lifestyle changes can help losing up to 25% of initial body weight. Zepbound’s active ingredient, Tirzepatide, is dual GLP-1 and Gastric Inhibitory Peptide (GIP) receptor agonist. Synergistic action of GLP-1 and GIP makes Zepbound more efficacious than Semaglutide. 

Zepbound is available in six strengths:

  • 2.5 mg starting dose
  • 5 mg maintenance dose
  • 7.5 mg increasing dose
  • 10 mg maintenance dose
  • 12.5 mg increasing dose
  • 15 mg maintenance dose.

The healthcare provider will start by prescribing the lowest dose which can be increased after 4 weeks of weekly administration. The maintenance dose will be the one that provides the desired effect.

Saxenda (Liraglutide)

Saxenda is FDA approved injectable drug for weight loss suitable for use even in paediatric patients aged 12 years or older whose body weight is more than 60 kg. Saxenda’s active ingredient is Liraglutide which affects satiety and suppresses appetite. The average weight loss following Saxenda treatment, reduced-calorie diet and regular exercise is up to 9.2%.  

Saxenda comes in six doses:

  • 0.6 mg starting dose
  • 1.2 mg increasing dose
  • 1.8 mg increasing dose
  • 2.4 mg increasing dose
  • 3 mg maintenance dose.

The healthcare provider will increase the dose weekly. It is expected to experience weight loss after week five, when the body gets used to new medication and good habits (healthy lifestyle) are established.

Weight Loss Reviews

What are GLP-1 Medications for Type-1 Diabetes?

GLP-1 agonists received attention as off-label Type 1 Diabetes treatment due to suppressing liver glucose production, increasing sensitivity to insulin, slowing down digestion and decreasing appetite and cravings. 

Ongoing trials regarding the effects of GLP-1 agonists in people suffering from Type 1 diabetes are:

GLP-1 agonists reduce a person’s need for insulin without significantly increasing hypoglycemia risk. The healthcare provider must carefully adjust doses for both, GLP-1 agonists and insulin, when introducing GLP-1 agonists as a therapy for people already taking insulin or glucose-lowering treatment.

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Frequently Asked Questions

How Often Do You Take GLP-1 Agonists?

Typical dosing schedule for injectable GLP-1 medications is once a week (Zepbound, Wegovy, Ozempic), whereas Saxenda and oral Semaglutide (Rybelsus) are taken daily.

Who Can Prescribe GLP-1 for Weight Loss?

Primary care physicians, endocrinologists or doctors who are trained in obesity medicine are the best healthcare professionals to assess health and determine which medication is right.

How Much Do GLP-1 Drugs Cost?

GLP-1 drugs come with a hefty price tag per month if not covered by insurance: Wegovy is $1,349, Zepbound is $1,059 and Saxenda is $1,350. There are assistance programs with discounted prices for Wegovy, Zepbound and Saxenda.

Key Takeaways

GLP-1 agonists are generally well-tolerated, glucose-regulating, satiety-inducing, insulin-sensitizing, pancreatic protective, cardiovascular protective and metabolically beneficial weight-reducing medications.

Wegovy, Zepbound and Saxenda are the most popular among GLP-1 agonists as weight-loss medicines.

GLP-1 agonists are safe to use and show therapeutic benefits as a therapy for Type 1 diabetes.

Always seek medical advice for tailored advice.

 

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