At IMAXweightloss, a virtual weight loss clinic in San Antonio, one of the most frequently asked questions we hear is: “What medications do you use for weight loss?” It’s a great question and one that’s especially important if you’re ready to move beyond crash diets and fads in favor of real, sustainable results.
Our 12-week program uses FDA-approved GLP-1 medications, specifically Semaglutide and Tirzepatide, as part of a medically supervised, personalized approach to weight loss. But medications are only part of the process. We combine these powerful tools with behavior modification, nutrition coaching, and ongoing support to help you retrain your brain and build healthy habits that last.
Below, we’ll answer the most common questions about the medications used for weight loss, how they work, and why this virtual program is helping people across San Antonio (and Texas) achieve their weight loss goals.
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What Are GLP-1 Medications?
GLP-1 stands for glucagon-like peptide-1, a hormone naturally produced in the body that plays a key role in blood sugar regulation, insulin release, and appetite control. GLP-1 medications mimic this hormone to help people feel full longer, reduce cravings, and improve metabolic health.
GLP-1 medications are administered as injections to the abdomen, thigh or upper arm. These medications for weight loss come as vials with syringes to inject, meant to be used by a single person.
These injections were originally designed for type 2 diabetes management, but have proven to be highly effective for weight loss. Even in individuals without diabetes. Oprah has been vocal about her use of GLP-1 for weight loss. Who can we trust if not Oprah!
What Weight Loss Medications Does IMAX Prescribe?
At IMAXweightloss, we currently prescribe two of the most effective GLP-1 medications used for weight loss:
● Semaglutide (brand names include Ozempic® and Wegovy®)
● Tirzepatide (brand names include Mounjaro® and Zepbound™)
Both medications are administered as once-weekly injections and are clinically proven to support consistent, sustainable weight loss when paired with healthy lifestyle changes. The major perk of working with IMAX is that we personalize the dosages. Without a personalized dosage, your weight loss can be minimal or even non-existent.
How Do Semaglutide and Tirzepatide Work?
These medications help regulate your appetite and reduce calorie intake without making you feel like you’re suffering through hunger pangs. Here’s how:
● Slower digestion: These medications delay gastric emptying, helping you feel full longer.
● Improved blood sugar control: They help balance insulin and glucose levels. ● Reduced cravings: GLP-1s interact with the brain to reduce hunger signals. ● More energy for activity: Stable blood sugar helps support better energy and mood for exercise.
How Long Does It Take to Lose Weight on Semaglutide or Tirzepatide?
Medications like semaglutide (Wegovy, Ozempic) and tirzepatide (Mounjaro, Zepbound) are transforming the world of weight loss, but they aren’t magic shots. These medications work by regulating blood sugar, slowing digestion, and reducing appetite. This makes it easier for many people to adopt a lower-calorie diet and stick to it. But how long does it actually take to see results?
Here’s a general timeline to give you an idea of what to expect:
● Initial effects: You may start noticing a reduced appetite and slight weight changes within the first few weeks.
● Weeks 4 – 8: More noticeable weight loss often kicks in during this phase. It’s common to lose 5 – 10 pounds during this period, especially when paired with healthy eating and movement.
● Weeks 8 – 16: Weight loss tends to become more consistent, with many individuals losing 10 – 15 pounds or more.
● Beyond 16 weeks: Continued weight loss is expected if the medication is combined with long-term lifestyle changes like a reduced-calorie diet and regular exercise.
Based on clinical trial data:
● In the STEP 1 trial, participants on semaglutide 2.4 mg lost an average of 9.6% of their body weight in 12 weeks and 13.8% by the 6-month mark.
● According to data from Juniper UK, it may take around 10–20 weeks to lose 20 pounds on semaglutide, depending on the person.
Often people want big results, very quickly, but that isn’t actually healthy and can derail your journey.. The recommended 1-2 pounds a week is the healthiest way to go about weight loss and has more of a tendency to stick. Setting those expectations for yourself can also lead to better results.
So what about the specific questions people ask?
“How Long Does It Take to Lose 20 lbs on Semaglutide?”
Most individuals can expect to lose 20 pounds over a period of 3 to 6 months. This depends on factors such as your starting weight, dosage, lifestyle habits, and how your body responds. Those with a higher starting weight or stricter adherence to a healthy eating plan may reach this milestone more quickly.
“Can I Lose 20 lbs in a Month on Mounjaro?”
While tirzepatide (Mounjaro/Zepbound) is associated with more rapid weight loss than semaglutide in some studies, losing 20 pounds in a single month is not typical – or safe – for most people. Healthy, sustainable weight loss is generally considered to be around 1 to 2 pounds per week. In rare cases with high starting weight and significant lifestyle change, some individuals may lose weight more quickly—but this should always be monitored by a medical provider, like Dr. Bilica.
Everyone is Different
Remember, individual results vary. Some people may lose weight faster, while others take more time. These medications are most effective when paired with a reduced-calorie diet, increased physical activity, and consistent medical supervision. Always speak with a healthcare provider like before starting or adjusting any weight loss medication. Dr. Paula Bilica can help tailor a safe and effective plan based on your unique health profile and goals.
And as always, consistency is key. Taking the dose of semaglutide and tirzepatide on the same day and time each week can impact your weight loss. Other factors include staying hydrated, getting enough sleep and finding ways to manage stress. These are lifestyle changes we can help you recognize and tweak.
What’s the Difference Between Semaglutide and Tirzepatide?
While both medications fall under the GLP-1 umbrella, Tirzepatide is actually a dual agonist, meaning it mimics both GLP-1 and GIP (glucose-dependent insulinotropic polypeptide). This dual action may help some individuals lose weight more effectively.
Some key differences:
● Semaglutide: Proven to support 15%+ total body weight loss over time. ● Tirzepatide: May result in up to 20%+ total body weight loss in clinical trials. ● Personalized Fit: Dr. Bilica will help determine which medication is right for you based on your history, goals, and health needs.
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How Much Does Semaglutide Cost Per Month?
Many weight loss clinics in San Antonio charge $500 – $1,000 or more per month for medical weight loss programs. These often include hidden fees for appointments, lab work, or medication.
At IMAXweightloss, we offer transparent pricing with no in-person appointments required. The cost of Semaglutide or Tirzepatide is included in the program, and your entire journey – from doctor check-ins to prescription delivery – is managed from the comfort of your home.
The cost of the Semaglutide program is $279 a month, while Tirzepatide is $399 a month. With a three month sign up and monthly automated recurring billing, this cost includes having the prescription mailed to you, monthly virtual check-ins with Dr. Bilica, and 24/7 access for questions. No insurance is required and we do accept HSA payment and credit cards.
Our virtual format allows us to keep costs lower while still providing premium care.
What’s Included in the 12-Week Program?
IMAXweightloss offers a 12-week program to get you started on your weight loss journey. Our structured program is designed for long-term success, not just temporary weight loss. Here’s what you get:
1. Online intake & health forms
2. Initial virtual consultation with Dr. Bilica to discuss your goals, history, and treatment plan 3. Medication prescription and home delivery
4. Weekly virtual check-ins to track progress and adjust as needed
5. Nutrition education, fitness guidance, and habit support
6. Ongoing access for questions and feedback any day, any time
Many people find they want to continue taking medications for weight loss after the 12-week program. We offer hassle-free refills. At IMAX you can always extend the program. Lots of people find that taking semaglutide for a year or more to be very effective. The 12-week program can be just the beginning.
Who Qualifies for Semaglutide or Tirzepatide?
Before starting your IMAXweightloss journey, it’s important to make sure you qualify for the program.
To begin, you must be 18 or older and a resident of Texas. Certain medical conditions may prevent you from safely using Semaglutide or Tirzepatide, including a history of pancreatitis, severe gastrointestinal disorders, or serious kidney or liver disease. You should also avoid these medications if you’re pregnant, planning to become pregnant, or have a personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia type 2 (MEN 2).
People who are hypersensitive or allergic to Semaglutide or Tirzepatide should not use these medications. Additionally, some medications may interact with GLP-1s, so be sure to discuss any prescriptions during your complimentary consultation. If you’re unsure about your eligibility, don’t worry, our board-certified doctor, Paula Bilica, will guide you through everything during your first appointment.
The IMAX Philosophy: Retrain Your Brain
At IMAXweightloss, we know medication alone isn’t the answer. That’s why our approach focuses on behavior change. Our motto, “Retrain Your Brain,” speaks to the importance of transforming habits and mindsets for lasting weight loss success.
Clients learn how to:
● Understand hunger cues
● Break emotional eating cycles
● Read nutrition labels
● Boost protein intake
● Stay hydrated
● Manage portion sizes
● Add resistance training for metabolic benefits
This combination of medication + mindset is the foundation of our proven method. Ready to Start Your Weight Loss Journey?
If you’re ready to try one of the most effective medications used for weight loss and want support that goes far beyond a prescription, IMAXweightloss is here for you.
Our fully virtual, physician-led program offers Semaglutide, Tirzepatide, and expert care tailored to your needs. Whether you’re in San Antonio or anywhere in Texas, we’re ready to help you retrain your brain and transform your health.
Book your virtual consultation today to take the first step.