You've seen the photos online. Someone in a baggy "before" shirt, then that same person three months later looking lean and confident. If you're considering tirzepatide, those comparisons are both motivating and a little suspect.
Here's what tirzepatide before-and-after looks like in practice, minus the filter — pulled from clinical trial data and what we see with patients at Medi-Slim Weight Loss & Spa in Las Vegas. MediSlim has been serving Las Vegas patients for more than 22 years, well before the GLP-1 boom.
In the SURMOUNT-1 clinical trial — the biggest tirzepatide weight-loss study — patients on the highest dose lost an average of 22.5% of their starting body weight over 72 weeks. For someone starting at 220 pounds, that's a 49-pound drop.
But averages hide the range. Some patients did way better. Some did less. Real results depend on a lot of factors — dose, starting weight, how consistent you were with food and movement, and how your body metabolizes the medication.
Most patients notice they're eating less within the first week or two. Portions shrink on their own. The "I could always eat something" signal quiets down. The scale usually hasn't moved much yet — that's normal.
By week 4 to 6, most people are down 5–10 pounds. Clothes start fitting differently. Energy shifts — some patients feel lighter and more motivated, others feel a little flat as their body adjusts.
This is when the biggest drops happen. Dose gets titrated up, appetite settles into its new baseline, and the pounds come off steadily. By the 6-month mark, many patients are down 15–20% of their starting weight.
Weight loss continues but slows as you approach your body's new set point. This is when we start thinking about maintenance strategy — how to keep the weight off when you eventually taper or stop.
Every patient starts with a consultation with one of our providers. We build your plan around:
We dispense compounded tirzepatide — the generic equivalent to brand-name Mounjaro and Zepbound. Same active ingredient, prepared by a licensed compounding pharmacy.
Two patients on the same dose can have very different outcomes. The big drivers:
The patients we see with the best before-and-after results share a few patterns:
Our team guides this directly. Your provider and the rest of the MediSlim team stay involved through follow-up visits.
Medi-Slim Weight Loss & Spa is in Las Vegas and serves patients from Henderson, Summerlin, Spring Valley, North Las Vegas, and the surrounding areas. Consultations are paid and by appointment — we don't work with insurance.
Most patients notice appetite changes in the first 1–2 weeks. Visible weight loss usually starts by week 4–6. The biggest changes tend to come in months 3–6, though every patient's pace is different.
Clinical trials showed an average of 15–22% over about a year, depending on dose. Your number will depend on your situation — we set realistic targets at your consultation.
That depends entirely on the habits you build during treatment. We plan maintenance into your journey from the start, and walk through specifics at follow-up visits.
No — we're a cash-pay clinic. Transparent pricing discussed at consultation.
We dispense compounded tirzepatide — same active ingredient, prepared by a licensed compounding pharmacy.
Yes — we see patients from across the valley.
Ready to start your own before-and-after? Book a consultation or call (702) 258-8456.
