Tirzepatide

Tirzepatide (Zepbound® / Mounjaro®)
Injected once a week
Average weight loss: 15-20%,
or 50 pounds.
Improves Sleep Apnea
Prevents Diabetes

Semaglutide

Semaglutide (Wegovy® / Ozempic®)
Injected once a week
Average weight loss 15%,
or 35 pounds.
Reduces risk of recurrent heart attack or stroke

Liraglutide

Liraglutide (Saxenda® / Victoza® / Generic)
Injected once a day
Average weight loss 9%

How do GLP-1 weight loss medications work?

These medications are long-acting versions of a hormone your body makes naturally called GLP-1. This hormone helps you feel satisfied after you eat. When you lose weight, your body lowers production of this hormone resulting in excess hunger, thus making keeping weight off very difficult. By replacing the GLP-1 hormone, you are able to keep the weight off without thinking about food all of the time.

GLP-1 medications have been in use for the treatment of type 2 diabetes since 2005, and have gained in popularity as they have shown other health benefits, such as reducing the risk of heart attack and stroke, and more recently, sleep apnea.

Which GLP-1 medications are used for weight loss?

tirzepatide / Zepbound weight loss medication pens

Tirzepatide Weight Loss Treatment

Tirzepatide is marketed as Zepbound for weight loss, and as Mounjaro for type 2 diabetes. It is the newest GLP-1 weight loss medication and was approved for weight loss in 2023. Manufactured by Lilly, Zepbound comes in 6 strengths, ranging from 2.5 mg to 15 mg. It is injected once a week, and provides an impressive weight loss ranging from 15-20% of the total body weight, or 35-50 pounds in clinical studies. It is generally well-tolerated. Compared to the other GLP-1 medications, tirzepatide provides a higher average percent weight loss, and in our experience, does this with less side effects.

Zepbound has also now been approved for treatment of moderate to severe sleep apnea.

If you have insurance coverage, Zepbound costs as little as $25 / month. If you do not, we can work with you to find the most cost-effective option.

GLP-1 weight loss medications picture of wegovy

Semaglutide Weight Loss Treatment

Semaglutide is marketed as Wegovy for weight loss, and as Ozempic for type 2 diabetes. It was approved for diabetes in 2017, and for weight loss in 2021. Manufactured by Novo Nordisk, Wegovy comes in 5 strengths, ranging from .25 mg to 2.4 mg. It is injected once a week, and provides an impressive weight loss of around 15% of the total body weight, or around 35 pounds. 1 in 3 people lose 50 pounds or more. It is generally well-tolerated, but in our experience, may have more side effects than Zepbound. We have seen many patients experience fewer cravings for alcohol and nicotine while on semaglutide.

Wegovy has now also been approved to reduce the risk of a second heart attack or stroke.

If you have insurance coverage, Wegovy costs as little as $25 / month. If not, we can work with you to find the most cost-effective solution.

liraglutide (saxenda / victoza) weight loss medication pens

Liraglutide Weight Loss Treatment

Liraglutide is marketed as Saxenda for weight loss and as Victoza for type 2 diabetes. It was approved for diabetes in 2010, then later for weight loss in 2014. It comes in 5 strengths ranging from .6 mg to 3.0 mg and is injected daily. In clinical studies, Saxenda resulted in an average weight loss of 9.2%, or around 25 pounds. It is not widely used now, as most people are being treated with tirzepatide or semaglutide.

However, as of 2025, there is now an authentic generic version of liraglutide. At the time of this posting, it is still expensive, but prices are falling rapidly. For individuals without insurance coverage, if we are unable to find a cost-effective solution for semaglutide or tirzepatide, liraglutide may be a good option.

Am I a candidate for GLP-1 weight loss medication?

If you have obesity, or have overweight and a weight-related complication such as high blood pressure, high cholesterol, or pre-diabetes, then weight loss medication may be indicated.

Zepbound is indicated only for adults age 18+. Wegovy and Saxenda are indicated in kids down to age 12.

AI Medication Assistant

Contraindications

You should not take GLP-1 weight loss medications if you have a personal or family history of Medullary Thyroid Carcinoma or Multiple Endocrine Neoplasia type 2. Further, GLP-1 weight loss medications have not been studied in people who have had pancreatitis.

Insurance Coverage

The first step in this process is to call your insurance company to see if you have coverage. For people with coverage, these medications can cost as little as $25 / month. For people without, we can help you determine the best option, and are quite skilled at finding you an affordable medication.

Keep in mind that for people with insurance coverage, insurers generally require a BMI of 30 or more, or 27 or more with a complication. Some insurers are calling for much higher BMI cut points for coverage, and some are requiring trials of less expensive medications first.

Weight Loss Comparison

Weight Loss Medications

Cost Insurance: $25 / month
Otherwise, varies by dose.
Average Weight Loss ~15-20%
50 pounds
Avoid if… Medullary Thyroid Carcinoma (MTC), MEN-II, Pancreatitis
Side Effects Nausea, vomiting, diarrhea, constipation, heartburn, burping, fatigue, headache
Other Benefits Improves sleep apnea, decreased risk of type 2 diabetes. Compared to semaglutide, better weight loss with less side effects.

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GLP-1 Weight Loss Medication FAQ