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By Jillian Caldwell, MS, PA-C

Published 2026-06-11

Tirzepatide Weight Loss in Houston

Tirzepatide is one of the medications I prescribe at MV for medical weight management. The FDA-approved branded products are Zepbound, which is approved specifically for chronic weight management, and Mounjaro, which is approved for type 2 diabetes and is used off-label for weight in some patients. This page is about tirzepatide specifically. If you want the bigger picture - the full program and how we choose and adjust medications - that lives on my medical weight loss page.

A quick word on what this is not. It is not a vending machine. I will not mail you a pen after a five-minute video call. Tirzepatide is a real medication with real eligibility criteria, a required in-person exam, lab work, and ongoing supervision. The program is medical. The goal is your metabolic health, and the number on the scale is one part of that.

Considering tirzepatide weight loss in houston? Start with a consultation.

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What it treats

  • Excess weight with a BMI of 30 or higher (obesity)
  • BMI of 27 or higher with a weight-related condition (high blood pressure, prediabetes, sleep apnea)
  • Insulin resistance and prediabetes
  • Weight that has plateaued despite consistent diet and exercise
  • Patients who want a supervised, lab-monitored medical framework rather than an online prescription mill

Products used in this treatment: Zepbound (tirzepatide), Mounjaro (tirzepatide)

How tirzepatide works in the body

Tirzepatide works by mimicking two of the hormones your gut already makes after you eat, just at a steadier level than your own body produces. Acting on two hormone pathways instead of one is what sets it apart from the earlier weight-management medications. Two effects matter most for weight.

First, it slows gastric emptying. Food stays in your stomach longer, so you feel full sooner and stay full between meals. Second, it acts on appetite centers in the brain, which quiets the background hum of food noise that drives snacking and second helpings. A lot of my patients describe it the same way - they just stop thinking about food all the time. There is also a metabolic piece: tirzepatide improves how your body handles insulin and glucose, which is why the same molecule is also used to treat type 2 diabetes.

One clinical aside. The appetite reduction cuts both ways. If you are not deliberate about protein and hydration while eating less, you can lose muscle and feel wiped out. That is part of why I want to see you regularly, not just sign a script.

Are you a candidate? The eligibility conversation

Zepbound is FDA-approved for adults with a BMI of 30 or above, or 27 or above with at least one weight-related condition such as high blood pressure, prediabetes, or obstructive sleep apnea. Those numbers are the starting frame, not the whole story.

At your first visit we go through your full medical history, your medications, your weight history, and what you have already tried. Some people are not candidates. A personal or family history of medullary thyroid carcinoma or MEN-2 is a hard contraindication on the FDA label. So is a history of pancreatitis, pregnancy or planning pregnancy, an active eating disorder, or significant gastroparesis. I would rather tell you no at the first visit than start you on something that is not safe for you.

For the record, I am Jillian Caldwell, PA-C. I prescribe under a Prescriptive Authority Agreement with Danna Qunibi, MD, our Medical Director. I am not a physician and I do not use the title doctor.

The required in-person exam and labs

Texas requires a Good Faith Exam before I can prescribe, and for a medication like this I want that exam to be in person here in the Heights. We check vitals, weight, and BMI, and we draw baseline labs. Typical panel: a comprehensive metabolic panel, A1c or fasting glucose, a lipid panel, and thyroid screening when indicated. Those labs do two things. They confirm there is nothing that should keep you off the medication, and they give us a starting line to measure progress against later.

This in-person, lab-backed approach is deliberate. The Texas Medical Board has disciplined telehealth-only operations that prescribe these medications with no real exam and no follow-up. You will see me, in this office, with your actual numbers in front of us.

Titration, side effects, and what the first weeks feel like

Tirzepatide is titrated slowly on purpose. The standard Zepbound schedule starts at 2.5 mg once weekly for four weeks, then steps up to 5 mg, and can increase by 2.5 mg roughly every four weeks - to a maintenance dose of 5, 10, or 15 mg once weekly - though we move at the pace your gut tolerates, not a fixed calendar. If a dose is rough, we hold. There is no prize for rushing.

Be ready for GI side effects, because they are common. Nausea is the big one, especially in the first weeks and after a dose increase. Constipation, occasional diarrhea, reflux, and burping show up too. Most of it settles as your body adapts, and smaller meals plus more water help a lot. Less common but serious risks include pancreatitis and gallbladder problems, and we go over the warning signs so you know when to call. I am honest about this part because the people who do well are usually the ones who knew what to expect.

Realistic expectations, with the actual data

Here is where I have to be careful, and honest. I cannot promise you a specific number. Anyone who does is either guessing or selling. What I can do is point you to the published trial data so you have a realistic frame.

In the SURMOUNT-1 trial that supported Zepbound's approval, adults on the 15 mg dose lost on average about 20% of their starting body weight over 72 weeks, compared with about 3% on placebo, with lifestyle support in both groups (Jastreboff et al., New England Journal of Medicine, 2022; reflected in the FDA Zepbound label). That is an average from a controlled study. Your result depends on your starting point, your health, your dose tolerance, and the food and movement work you do alongside the medication. I will set a personalized, realistic goal with you rather than quote you a guarantee.

Supervision, nutrition, and Heights logistics

Continuity is the whole game. We meet every four weeks for the first few months to adjust the dose and troubleshoot side effects, then space visits out as things stabilize. The medication does part of the work; the rest is nutrition. I pair every patient on these medications with nutrition counseling focused on protein adequacy, fiber, and hydration - the habits that protect muscle now and keep weight off later, because regain is common when people stop the drug without changing how they eat.

On the medication itself: I prescribe the FDA-approved branded products, Zepbound and Mounjaro - the exact medications that were studied in the trials, manufactured to a consistent dose, with the manufacturer's support behind them. That is what I want in your body. They are not the cheapest thing on the market, and we will talk honestly about cost and coverage rather than cut corners on what I prescribe.

We are at 2401 N. Shepherd Dr., Suite 229, at 24th and Shepherd in the Heights, just south of I-610. Parking is free under the building, so you are not circling the block before a lab draw.

Common questions about tirzepatide weight loss in houston

What is the difference between Zepbound and Mounjaro?
Both are tirzepatide. Zepbound is FDA-approved specifically for chronic weight management at doses up to 15 mg weekly. Mounjaro is FDA-approved for type 2 diabetes; using it for weight loss is off-label. We choose based on your medical situation, eligibility, and what is actually available to you.
Do I really have to come in person?
Yes. Texas requires a Good Faith Exam, and for a weight-loss medication I want that exam in person along with baseline labs. The Texas Medical Board has disciplined telehealth-only prescribers who skip this. The in-person visit protects you and gives us a real baseline to measure against.
How much weight will I lose on tirzepatide?
I cannot promise a specific number, and you should be cautious of anyone who does. In the SURMOUNT-1 trial, adults on tirzepatide 15 mg lost about 20% of their body weight on average over 72 weeks (Jastreboff et al., NEJM 2022). Individual results vary widely. We set a realistic, personalized goal at your first visit.
What are the side effects?
Most common are GI: nausea, constipation, occasional diarrhea, and reflux, especially in the first weeks and after dose increases. Most ease as your body adapts. Less common but serious risks include pancreatitis and gallbladder problems. We review the warning signs and screen for them at every visit.
Does insurance cover tirzepatide?
Coverage varies widely. Zepbound (the FDA-approved-for-weight version) is covered by some commercial insurance plans, especially when BMI and comorbidities meet criteria. We can help with prior-authorization paperwork but cannot guarantee coverage, and we will be honest at your first visit about likely out-of-pocket cost.
How is this different from your general medical weight loss program?
This page focuses on tirzepatide specifically. The broader medical weight loss program covers the full picture - how we choose and adjust medications, insurance, and long-term maintenance. If you are not sure tirzepatide is the right fit, start with the broader page or just come in and we will figure it out together.

Ready to talk?

Want to know if this is right for you?

Book a consultation with Jillian and we will talk through your options honestly.

The content on this page is for educational purposes and reflects Jillian Caldwell's clinical perspective. It is not medical advice. Individual results vary. Suitability for any treatment is determined at a private consultation. Clinical services at MV Medical Aesthetics are delivered under physician supervision.