Medically reviewed by Dr. Diala Alatassi, MD
Tirzepatide is a once-weekly injection that acts on both GIP and GLP-1 receptors, and it is sold as Zepbound for weight management and Mounjaro for type 2 diabetes. Here is how the two differ, what to know about safety, and how telehealth prescribing works for Denver-area adults.
Zepbound and Mounjaro contain the same active ingredient, but they are approved for different conditions, and that difference shapes which one a physician may prescribe. For adults in Denver, Aurora, Lakewood, Boulder, Centennial, Highlands Ranch, Arvada, Littleton, and Westminster, understanding the label is a good first step before a telehealth visit.
Key Takeaways
Tirzepatide is a dual GIP and GLP-1 receptor agonist given as a once-weekly injection.
Zepbound is FDA-approved for chronic weight management and for moderate-to-severe obstructive sleep apnea in adults with obesity. Mounjaro is FDA-approved for type 2 diabetes.
In the SURMOUNT-1 trial, adults with obesity lost an average of up to about 21% of body weight at the highest dose over 72 weeks, compared with about 3% on placebo. Individual results vary.
Tirzepatide carries a boxed warning about thyroid C-cell tumors, and a physician should screen your history before prescribing.
Zepbound vs. Mounjaro: What Is the Difference?
Both products are tirzepatide made by Eli Lilly. Zepbound carries the weight-management indication, so it is the labeled option when the goal is treating obesity or overweight with a related condition. Mounjaro is labeled for improving blood sugar in adults with type 2 diabetes. There is no FDA-approved generic tirzepatide, so be cautious of products marketed that way. You can read the approved labeling for Zepbound on the FDA's Drugs@FDA database.
What the Research Shows
In the SURMOUNT-1 trial published in the New England Journal of Medicine, participants with obesity or overweight who took tirzepatide alongside lifestyle changes lost significantly more weight over 72 weeks than those on placebo, with average loss increasing at higher doses. Trial participants received counseling and were monitored closely, so real-world results can differ. Side effects were mostly gastrointestinal.
Who May Be a Candidate
Under FDA labeling, Zepbound is intended for adults with a BMI of 30 or higher, or 27 or higher with at least one weight-related condition. Your physician also considers your medical history, other medications, and pregnancy plans. Tirzepatide is not appropriate for people with a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2. Caution is also used with a history of pancreatitis, gallbladder disease, or severe stomach problems.
Side Effects to Know About
The most common side effects include nausea, diarrhea, vomiting, constipation, and stomach discomfort, especially when a dose is started or raised. Dose changes should be made only by your prescriber. Contact your provider promptly for severe abdominal pain or if you cannot keep fluids down.
How Telehealth Prescribing Works in Colorado
With TeleSlim Clinic Denver, you meet a physician by secure video, review your history and goals, and discuss whether tirzepatide or another option may be appropriate. If it is, the prescription goes to the pharmacy you choose, and follow-up visits track progress and side effects. Confirm any prescriber's license through the Colorado Division of Professions and Occupations. Learn more about the process on the treatment page.
Other Medication Options
Tirzepatide is one of several choices. TeleSlim Clinic Denver also offers semaglutide (Wegovy, Ozempic), liraglutide (Saxenda), phentermine, phentermine-topiramate (Qsymia), naltrexone-bupropion (Contrave), orlistat, and metformin, along with setmelanotide for rare genetic causes of obesity after genetic confirmation. Compare them on the weight loss medications page. TeleSlim Clinic does not prescribe compounded medications. To talk it through, book a free consult or see the FAQ page.
Frequently Asked Questions
Is Zepbound the same as Mounjaro?
They contain the same active ingredient, tirzepatide, but they are approved for different conditions. Zepbound is approved for weight management and sleep apnea in adults with obesity, while Mounjaro is approved for type 2 diabetes.
Is tirzepatide better than semaglutide?
In separate clinical trials, tirzepatide produced larger average weight loss than semaglutide, but the best choice depends on your health history, tolerance, coverage, and goals. Your physician can help you compare them.
Can I take tirzepatide if I do not have diabetes?
Yes, Zepbound is approved for chronic weight management in adults who meet the BMI and health criteria, without requiring diabetes.
How much does tirzepatide cost?
Costs depend on your insurance coverage, the dose, and where you fill the prescription, and they change often. Ask your insurer and pharmacy for current pricing before you start.
Do I need to live in Denver?
You need to be located in Colorado at the time of your visit. TeleSlim Clinic Denver serves adults across the metro area and the state.
This article is for general education and is not medical advice. It was medically reviewed by Dr. Diala Alatassi, MD, double board-certified in Internal Medicine and Obesity Medicine. Talk with a licensed provider about whether any weight-loss medication is right for you.
