GLP-1 Medications for Weight Loss

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GLP-1 agonists represent a medication class primarily designed to regulate blood sugar levels in individuals with Type 2 diabetes. Additionally, certain GLP-1 agonists have shown efficacy in addressing obesity concerns.

Typically administered through injection, these medications involve injecting a liquid solution using a needle and syringe. Subcutaneous injections, delivered into the fatty tissue just beneath the skin, are commonly performed in areas such as the belly, outer thighs, upper buttocks, and the backs of the arms.
Physicians acknowledge that GLP-1s have a demonstrated the ability to reduce hunger. These medications also decelerate the transit of food from the stomach to the small intestine, leading to a sensation of prolonged fullness. Consequently, patients typically consume less as a result.

Injections & Oral Medications

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Semaglutide (Ozempic®, Wegovy®)

Extensive studies reveal these drugs’ capacity to contribute to substantial weight reduction, with an average loss of approximately 15% or more among patients. Through its focus on appetite regulation and enhancement of insulin sensitivity, Semaglutide medications facilitate enduring and impactful weight loss outcomes.

Oral Semaglutide (Rybelsus®)

Oral Semaglutide tablets not only prove to be a potent diabetes medication but are also emerging as an efficacious treatment for weight loss. Recognized as a groundbreaking method to empower individuals globally in managing their weight and well-being, studies indicate that these tablets enhance weight loss, diminish hunger and cravings, regulate blood sugar, and enhance metabolic health, among other benefits.

Tirzepatide (Mounjaro®)

Tirzepatide represents an injectable therapy designed to address type II diabetes and obesity.  It combines two peptides, namely glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). Targeting the hypothalamus region of the brain, responsible for regulating hunger and fullness, this combination, when injected and circulated in the bloodstream, contributes to stabilizing blood sugar levels, minimizing hunger, and enhancing feelings of satiety.

Liraglutide (Victoza®, Saxenda®)

Liraglutide functions by assisting the pancreas in releasing an appropriate amount of insulin during elevated blood sugar levels.  Liraglutide is prescribed for diabetes type 2 and obesity, often in conjunction with exercise and diet for sustained weight control in adults. Additionally, Liraglutide injections slows the emptying of the stomach and may decrease appetite while improving  weight loss.

Dulaglutide (Trulicity®)

Recognized as Trulicity, Dulaglutide stands out for its considerable weight loss benefits. It proves to be a valuable tool for individuals striving to shed excess pounds, facilitating significant weight reduction. By effectively targeting multiple physiological mechanisms, Dulaglutide not only regulates appetite and improves insulin sensitivity but also fosters sustainable and enduring weight loss.

Exenatide (Byetta®)

Exenatide is utilized for the treatment of type 2 diabetes. Its mode of action involves boosting insulin levels, leading to a reduction in blood sugar (glucose). Furthermore, it curtails the release of sugar into the bloodstream and decelerates digestion. This medication is commonly complemented by changes to diet and exercise.

Exenatide (Bydureon®)

Bydureon, a prolonged-release variant of exenatide, is employed in conjunction with diet and exercise to enhance blood sugar control in individuals diagnosed with type 2 diabetes mellitus.  Exenatide, administered through injection, is a diabetes medication designed to regulate blood sugar levels. It enhances the efficiency of insulin production by the pancreas.

Lixisenatide (Adlyxin®)

Prescribed for type 2 diabetes, Lixisenatide injection, complemented by diet and exercise, aids insulin regulation. It doesn’t replace insulin for type 1 diabetes or those in need. As an incretin mimetic, it prompts insulin release during elevated blood sugar, aiding energy use. Moreover, it slows stomach emptying and curbs appetite.

A Closer Look at Semaglutide

for Weight Loss

Semaglutide is a breakthrough treatment for people who struggle with serious, chronic weight management challenges. First isolated as an effective diabetes drug, Semaglutide helps release just the right amount of insulin and at the right time. This medication is now available to patients who need to lose a significant amount of weight in a consistent way and achieve results long-term. This treatment method doesn’t rely on stimulants, harmful crash diets, unsustainable exercise plans, or any other mechanism that can jeopardize the patient’s overall health.

High-quality semaglutide for weight loss is offered in a safe, effective, and easy-to-use custom formulation that adds the proven fat-burning power of the amino acid L-Carnitine.


Semaglutide Injections

Semaglutide – Proven Results

A large study was published recently in the New England Journal of Medicine showing some pretty impressive weight loss effects in non-diabetics taking semaglutide.  50% of people in the treatment group lost at least 15% of their body weight over 68 weeks and 86% lost at least 5%.  Fasting insulin was reduced by 26% and liver function tests normalized.  Patients continued to lose weight for more than 60 weeks without hitting a plateau.


Lost 15% Bodyweight


Lost 5% Bodyweight

There’s no need to struggle with perpetual cycles of weight loss and gain. There’s also no need to live with the hopeless feeling that comes with an inability to manage serious weight issues with diet and exercise alone. Hundreds of millions of people worldwide turn to modern medicine every day to keep their bodies in the best possible condition. It’s long past time to end the stigma associated with seeking medical intervention for serious weight management issues.

Your dedication to healthy lifestyle choices will be crucial for sustainable, long-term weight management. However, injectable semaglutide treatment is an extremely valuable tool. It can help you achieve your goal of having better overall health by getting you on track towards a healthy weight. With weekly semaglutide injections, you can reach your ideal body weight in a way that can be maintained for the rest of your life. You can do so without turning to starvation-based “diets” or unrealistic 30-day workout programs.

Semaglutide: How Does it Work?

Weightloss and Obesity


Semaglutide is not a miracle cure or a gimmicky “fat-burning” supplement. It is a long-acting prescription medicine designed to be used over an extended period of several months or more. Semaglutide injections are not an appropriate treatment for people who only need to lose a small amount of weight or have a body mass index (BMI) of 27 or less. It is also not appropriate for those who are looking for an “instant” or short-term weight loss fix.  When your stomach takes more time to empty itself of food, it sends signals of “fullness” to the brain. This signal is sent throughout a larger portion of your day, even if you’re eating less food than usual. The end result of this process is a powerful appetite suppression effect based on the patient’s own natural insulin production. This means patients can benefit from medically assisted weight loss without any need for invasive surgeries or harsh stimulants.

A semaglutide regimen will also lead to healthier blood sugar levels, which can help you feel more energetic throughout your day. Stabilized and controlled blood sugar levels can also help improve other areas of your overall health. Even if you aren’t at risk for diabetes, this effect can contribute to a general sense of well-being, which is a crucial component in any weight loss journey. Contact Dr. Paul C. Tack M.D. to schedule your consultation

Tirzepatide vs Semaglutide

 for Weight Loss

Both medications, tirzepatide and semaglutide, fall under the GLP-1 receptor agonist class, proving effective in enhancing glycemic control and facilitating weight loss.  In the SURPASS-3 trial in 2021, tirzepatide exhibited superior weight loss, being 40% more potent than Semaglutide, achieving a 21% reduction within 3-6 months. 


More Potent than Semaglutide


Reduction within 3-6 months

Tirzepatide emerged as more effective and cost-efficient than semaglutide, despite its higher price.  It’s crucial to acknowledge that tirzepatide, approved by the FDA in 2022, is newer, whereas semaglutide boasts a more extensive clinical research history.  Both medications inhibit compensatory mechanisms during weight loss, with patients experiencing gastrointestinal side effects at the start showing optimal treatment responses for both semaglutide and tirzepatide. A decision between tirzepatide and semaglutide should involve a thorough evaluation by one of our medical professionals, considering your unique needs, preferences, and tolerability for the most suitable treatment option.


We utilize BIA (Bioelectrical Impedance Analysis) technology, which sends a safe, low-level electrical signal from footplate and hand electrodes through the body. BIA is quick and non-invasive, and one of the most thorough and reliable ways to measure body composition, clinically comparable to DEXA (dual-energy x-ray absorptiometry) and hydrostatic (underwater) weighing.

Segmental readings for each leg, arm and trunk:

  • Fat percentage
  • Fat mass
  • Fat rating
  • Muscle mass
  • Muscle mass rating

Experience Whole Body Analysis

Our Body Composition Analyzer uses the very latest multi-frequency technology to record a comprehensive range of 31 measurements in just 20 seconds, from segmental fat and muscle mass to basal metabolic rate, visceral fat levels, metabolic age, phase angle and intra/extra cellular body water. Research has shown that using multi-frequency provides essential data on intracellular and extracellular water. This advanced technology shows greater accuracy when calculating body composition measurements.

Measurements include:

Weight • Body fat percentage • Fat mass • Fat free mass• Muscle mass • Total Body Water • Extra Cellular Water • Intra Cellular Water • ECW/TBW ratio • Body mass index • Bone mass • Physique rating • Visceral fat rating • Basal Metabolic Rate • Metabolic Age • Muscle mass balance


Our Concierge Patients Enjoy the Convenience of Telemedicine

Call Us Today and Improve your Quality of Life with the help of Dr. Paul C. Tack at Gurnee Andropause

Whether we like it or not, age can take its toll on energy levels, weight, body composition, and libido.

But that doesn’t mean it’s the end of your story. You can fight back and win!

If you’ve been feeling like your energy and vitality just isn’t what it used to be, or your body feels like it’s not working like it should, we can help!

Take the next step by contacting our office today at 847.672.4284 to schedule an appointment.

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Monday:  11:00am - 7:00pm

Tuesday:  8:00am - 3:00pm

Wednesday:  11:00am - 7:00pm

Thursday:  8:00am - 3:00pm

Friday:  8:00am - 3:00pm

Saturday:  Closed

Sunday:  Closed


Gurnee Andropause (Dr. Paul C. Tack - Center for Internal Medicine) is located in Gurnee, IL, just behind Six Flags Great America. From the 294, go East on Grand Ave. (Route 132) to the 3rd stoplight, turn right on Riverside Drive. Our office is located on the East side of the street in the Windsor Court Office Park.

Dr. Paul C. Tack has been passionately serving Lake County, Illinois for over 15 years. As a Testosterone Replacement Therapy and Medical Weight Loss Physician, Dr. Tack serves patients from the communities of Antioch, Arlington Heights, Bannockburn, Barrington, Barrington Hills, Beach Park, Buffalo Grove, Chicago, Deer Park, Deerfield, Evanston, Fox Lake, Fox River Grove, Grayslake, Green Oaks, Glencoe, Glenview, Gurnee, Hainesville, Hawthorn Woods, Highland Park, Highwood, Highland Park, Indian Creek, Island Lake, Kenilworth, Kildeer, Lake Barrington, Lake Bluff, Lake County, Lake Forest, Lake Villa, Lake Zurich, Lakemoor, Libertyville, Lincolnshire, Lindenhurst, Long Grove, Mettawa, Mundelein, North Barrington, North Chicago, Northbrook, Northfield, Old Mill Creek, Park City, Park Ridge, Port Barrington, Riverwoods, Round Lake, Round Lake Beach, Round Lake Heights, Round Lake Park, Schaumburg, Skokie, Third Lake, Tower Lakes, Vernon Hills, Volo, Wadsworth, Wauconda, Waukegan, Wheeling, Wilmette, Winnetka, Winthrop Harbor, Zion and surrounding areas.