Phentermine has been around for decades, and it still works. If you're in Las Vegas looking for a prescription appetite suppressant that won't cost you a monthly GLP-1 budget, this is often the first option we talk about at Medi-Slim Weight Loss & Spa.
Here's what it does, who it's right for, and how treatment looks with us.
MediSlim has been serving Las Vegas patients for over 22 years, so we've seen what works for appetite suppression and what doesn't.
Phentermine is an FDA-approved prescription medication that suppresses appetite. It works on the central nervous system to dial down hunger signals, which makes it easier to eat less without constantly fighting cravings.
What patients actually notice:
It doesn't work by magic. It works by making the eating habits you're trying to build actually stick.
Phentermine is generally a fit for adults who are overweight and ready to commit to real dietary changes. It pairs especially well with patients who have struggled with hunger and portion control on their own.
We'll want to rule it out if you have:
That's why the consultation matters. We review your full history before prescribing anything.
Our team handles nutrition and lifestyle coaching directly, alongside the medication. Phentermine works best when paired with the habit changes we'll talk through at your visits.
Most patients feel the appetite change within a few days. Weight loss tends to show up in the first few weeks, then settle into a steady pace as long as you pair the medication with real habit changes.
Common side effects are usually mild:
Let us know if anything feels off. We'd rather adjust early than have you push through something uncomfortable.
Treatment duration depends on your response, your goals, and how your body handles the medication. Your provider will determine the right length of treatment based on how things are going at each follow-up. This isn't a one-size-fits-all 12-week prescription — we tailor it to you.
Patients often ask how phentermine compares to semaglutide or tirzepatide. Short answer:
Neither is "better." They're different tools for different patients. We'll tell you which one fits your situation at the consultation.
Medi-Slim Weight Loss & Spa is based 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.
There's no strict cutoff. Your provider at MediSlim will determine the right length of treatment based on your response and how you're tolerating the medication. For many patients, that's longer than the old 12-week convention.
Some patients notice the appetite effect soften after a few months. When that happens we can adjust the dose or schedule, or look at a different approach.
A cup or two is usually fine. Stacking lots of caffeine on top of phentermine can amplify jitteriness and sleep issues — most patients dial it back.
No. We're cash-pay. Pricing is transparent and discussed at your consultation.
Yes — we see patients from across the valley.
In some cases, yes, under careful medical supervision. That's a conversation we'd have at your consultation after reviewing your full picture.
If phentermine sounds like the right starting point, book a consultation or call (702) 258-8456.
