-
FDA-Approved Weight Loss Medications
By decreasing hunger and food noise, weight loss medications help you lose more weight and keep it off.
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 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.
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 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
This form uses AI to determine if you are a good fit.
Note: This is intended as a guide only. Discuss your unique circumstances with a provider. Information presented is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment.
This tool is for adults age 18 or over.
Saxenda, Wegovy and Qsymia do have an indication down to age 12.
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. |
Cost | Insurance: $25 / month Otherwise, varies by dose. |
Average Weight Loss | ~15% 35 pounds |
Avoid if… | Medullary Thyroid Carcinoma (MTC), MEN-II, Pancreatitis |
Side Effects | Nausea, vomiting, diarrhea, constipation, heartburn, burping, fatigue, headache |
Other Benefits | Decreased risk of recurrent heart attack |
Cost | Insurance: $25 / month Otherwise, varies by dose. Newly approved as Generic – check with your pharmacy. |
Average Weight Loss | ~9% 25 pounds |
Avoid if… | Medullary Thyroid Carcinoma (MTC), MEN-II, Pancreatitis |
Side Effects | Nausea, vomiting, diarrhea, constipation, heartburn, burping, fatigue, headache |
Other Benefits | Same mechanism but less potent than semaglutide and tirzepatide. Daily injection (others are weekly). |
Are you ready to learn more?
The first visit is free. What do you have to lose?
GLP-1 Weight Loss Medication FAQ
Click here to use AI to determine if you are a good candidate!
GLP-1 weight loss medications should only be used in peoplewith obesity (BMI >= 30). They may also be used if the BMI is >= 27 with a related medical problem, like high blood pressure, high cholesterol or pre-diabetes. GLP-1 weight loss medications should not be used for purely cosmetic weight loss.
In addition, GLP-1 weight loss medications should not be used in the following situations:
- Personal or family history of medullary thyroid carcinoma, or multiple endocrine neoplasia type 2.
- History of pancreatitis (discuss with provider).
- Known allergy to GLP-1, or any of the excipients in the GLP-1.
- May cause fetal harm – discuss pregnancy recommendations of your particular GLP-1 with your provider. All should be discontinued if you become pregnant.
- GLP-1 weight loss medications may be excreted in breast milk – again, review recommendations with your provider.
This is a complex question. Our providers are skilled in helping you navigate this and find a cost effective option. We recommend the following 3 steps:
- Call your health insurance provider – ask if you have coverage for GLP-1 weight loss medications including Wegovy and Zepbound.
- Visit wegovy.com and zepbound.com and research your savings card options or direct to patient cash price.
- Schedule a visit with a CNC provider to review your options.
If you have coverage, GLP-1 weight loss medications can cost as little as $25 per month. If you don’t, our providers can help you navigate the most cost-effective option, often as little as $200 / month.
GLP-1 weight loss medication injections do not hurt.
The injections are done by yourself at home once a week for semaglutide and tirzepatide, or once daily for liraglutide.
Most side effects are mild to moderate. They may include: nausea, vomiting, diarrhea, constipation, abdominal pain, headache, fatigue, dyspepsia, dizziness, abdominal distention, eructation (burping), hypoglycemia in patients with diabetes, flatulence, gastroenteritis, gastroesophageal reflux disease, and nasopharyngitis.
Rare but more serious problems include a potential risk for medullary thyroid carcinoma, pancreatitis, gallstones, hypoglycemia, acute kidney injury, hypersensitivity reactions, diabetic retinopathy complications in patients with type 2 diabetes, and heart rate increases.
See the full safety information for semaglutide here, fo tirzepatide here, and for liraglutide here.
If the missed dose will be done more than 48 hours before the next regularly scheduled dose, then administer as soon as possible. If less than 48 hours before the next regularly scheduled dose, you may wait and resume on your regularly scheduled day. If you miss more than 2 doses, talk with your provider about possibly resuming at a lower dose to lower the chance of side effects.
GLP-1 weight loss medications don’t take the weight off by themselves – they help control your appetite so you can eat a lower calorie food plan without feeling hungry. However, if you don’t eat a healthy diet and get regular physical activity, a lot of the weight lost will be muscle. For this reason, it is important to review your eating plan and physical activity plan with your CNC staff. Further, we recommend monitoring body composition on our seca medical body composition analyzer so we can track your fat vs. lean loss.
- We recommend starting your GLP-1 on a Sunday or Monday evening. Then, if there are side effects, you can call us at the office at (303) 750-9454 to assist you.
- Avoid eating out the first couple days after your first shot at each new dose..
- Avoid high-fat or high-carb foods the first couple days after your first shot at each new dose.
- Careful with Alcohol – it may seem a lot stronger than you remember.
- To avoid nausea, eat something immediately when you wake up, even if you are nauseous. We’ve found a protein drink can really settle down the stomach. Even a glass of water can help reduce or prevent nausea.
- Eat frequent small meals throughout the day the first couple days after the injection. Choose small amounts of proteins and vegetables.
- If the injection site hurts, it could be from injecting the medication while it is cold – consider allowing your medication to come to room temperature before the injection.
- See a provider or dietitian at CNC each month to customize your plan, figure out your best dose, and help you maximize your results.
- Do not stop your GLP-1 medication without discussing this with your CNC provider – obesity is a chronic health problem, and we usually use these medications long-term.
https://youtu.be/f9E5RG-xQxI
Zepbound / Mounjaro single dose pens, click here.
Wegovy single dose pen, click here.
Ozempic / Saxenda multi-dose pens, click here.
To inject from a vial:
For a video, click here.
- Gather Supplies: You’ll need the medication vial, a syringe, a needle, and alcohol swabs.
- Wash Your Hands: Begin by washing your hands thoroughly with soap and water or using hand sanitizer.
- Prepare the Vial:
- Remove the cap from the vial.
- Use an alcohol swab to clean the rubber stopper on the vial to minimize the risk of infection.
- Draw Up the Medication:
- Pull back the plunger of the syringe to draw air into it that is equal to the dose of medication you intend to take.
- Insert the needle into the vial and push the plunger to inject the air into the vial (this helps create a vacuum).
- Invert the vial while keeping the syringe in it, and pull back on the plunger to draw up the correct amount of medication.
- Make sure there are no air bubbles in the syringe. If there are, gently tap the side of the syringe and push the plunger slightly to expel the air.
- Prepare for Injection:
- Choose a suitable injection site (such as the thigh or abdomen) and clean it with an alcohol swab.
- Remove the needle cap, being careful not to touch the needle.
- Administer the Injection:
- Pinch the skin around the injection site if necessary.
- Insert the needle at the recommended angle (usually 90 degrees for intramuscular injections or 45 degrees for subcutaneous injections).
- Push the plunger down steadily to inject the medication.
- Dispose of the Needle Safely: Once the injection is complete, safely dispose of the needle and syringe in a sharps container.
- Apply Pressure: If needed, apply gentle pressure to the injection site with a cotton ball or gauze.
- Wash Your Hands Again: After disposing of the needle, wash your hands thoroughly.
Important Safety Information about GLP-1 Weight Loss Medications
GLP-1 may cause serious side effects, including:
- Possible thyroid tumors, including cancer. Tell your healthcare provider if you get a lump or swelling in your neck, hoarseness, trouble swallowing, or shortness of breath. These may be symptoms of thyroid cancer. In studies with rodents, GLP-1 medicines caused thyroid tumors, including thyroid cancer. It is not known if GLP-1 will cause thyroid tumors or a type of thyroid cancer called medullary thyroid carcinoma (MTC) in people. Do not use GLP-1 if you or any of your family have ever had a type of thyroid cancer called medullary thyroid carcinoma (MTC) or if you have an endocrine system condition called Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
- Do not use GLP-1 if you have had a serious allergic reaction to semaglutide or tirzepatide or any of the ingredients in GLP-1.
Before using GLP-1, tell your healthcare provider if you have any other medical conditions, including if you:
- have or have had problems with your pancreas or kidneys
- have type 2 diabetes and a history of diabetic retinopathy
- have or have had depression, suicidal thoughts, or mental health issues
- are pregnant or plan to become pregnant. GLP-1 may harm your unborn baby. You should stop using GLP-1 2 months before you plan to become pregnant (semaglutide products), or if pregnancy is detected (tirzepatide products).
- are breastfeeding or plan to breastfeed. It is not known if GLP-1 passes into your breast milk
- Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. GLP-1 may affect the way some medicines work and some medicines may affect the way GLP-1 works. Tell your healthcare provider if you are taking other medicines to treat diabetes, including sulfonylureas or insulin.
- GLP-1 slows stomach emptying and can affect medicines that need to pass through the stomach quickly.
GLP-1 may cause serious side effects, including:
- inflammation of your pancreas (pancreatitis). Stop using GLP-1 and call your healthcare provider right away if you have severe pain in your stomach area (abdomen) that will not go away, with or without vomiting. You may feel the pain from your abdomen to your back
- gallbladder problems. GLP-1 may cause gallbladder problems, including gallstones. Some gallstones may need surgery. Call your healthcare provider if you have symptoms, such as pain in your upper stomach (abdomen), fever, yellowing of the skin or eyes (jaundice), or clay- colored stools
- increased risk of low blood sugar (hypoglycemia), especially those who also take medicines for diabetes such as insulin or sulfonylureas. This can be a serious side effect. Talk to your healthcare provider about how to recognize and treat low blood sugar and check your blood sugar before you start and while you take GLP-1. Signs and symptoms of low blood sugar may include dizziness or light-headedness, blurred vision, anxiety, irritability or mood changes, sweating, slurred speech, hunger, confusion or drowsiness, shakiness, weakness, headache, fast heartbeat, or feeling jittery
- kidney problems (kidney failure). In people who have kidney problems, diarrhea, nausea, and vomiting may cause a loss of fluids (dehydration), which may cause kidney problems to get worse. It is important for you to drink fluids to help reduce your chance of dehydration
- serious allergic reactions. Stop using GLP-1 and get medical help right away, if you have any symptoms of a serious allergic reaction, including swelling of your face, lips, tongue, or throat; problems breathing or swallowing; severe rash or itching; fainting or feeling dizzy; or very rapid heartbeat
- change in vision in people with type 2 diabetes. Tell your healthcare provider if you have changes in vision during treatment with GLP-1
- increased heart rate. GLP-1 can increase your heart rate while you are at rest. Tell your healthcare provider if you feel your heart racing or pounding in your chest and it lasts for several minutes
- depression or thoughts of suicide. You should pay attention to any mental changes, especially sudden changes in your mood, behaviors, thoughts, or feelings. Call your healthcare provider right away if you have any mental changes that are new, worse, or worry you
- Alert your healthcare provider if you are planning to have surgery or procedures that require deep sedation
The most common side effects of GLP-1 may include: nausea, diarrhea, vomiting, constipation, stomach (abdomen) pain, headache, tiredness (fatigue), upset stomach, dizziness, feeling bloated, belching, low blood sugar in people with type 2 diabetes, gas, stomach flu, heartburn, and runny nose or sore throat.
This information is intended for your private use only. See the full safety information for semaglutide here, fo tirzepatide here, and for liraglutide here.