Medication Efficacy Guide
Understand how GLP-1 therapies work, what results to expect, and how long it takes to see meaningful changes in your health.
Clinical Efficacy Comparison
Tirzepatide (Zepbound®/Mounjaro®)
GLP-1 + GIP Receptor Agonist
Average Weight Loss
22.5%
Average A1C Reduction
2.1 pts
Overall Efficacy Score:
Semaglutide (Ozempic®/Wegovy®)
GLP-1 Receptor Agonist
Average Weight Loss
14.9%
Average A1C Reduction
1.5 pts
Overall Efficacy Score:
Liraglutide (Saxenda®)
GLP-1 Receptor Agonist
Average Weight Loss
8.4%
Average A1C Reduction
0.8 pts
Overall Efficacy Score:
Frequently Asked Questions
GLP-1 receptor agonists mimic a natural hormone that regulates blood sugar and appetite. They work through multiple mechanisms:
- Appetite Suppression
Signals to the brain that you're full, reducing hunger and cravings
- Blood Sugar Regulation
Stimulates insulin release and improves glucose control
- Slowed Gastric Emptying
Extends the time food stays in your stomach, promoting satiety
- Heart Health Benefits
May reduce cardiovascular disease risk in some patients
Results vary by individual, medication, and dosage. Here's what studies show on average:
Typical Weight Loss (12 months)
15-22% body weight
Average A1C Improvement
1.5-2.1 points
Typical Result Timeline:
Initial side effects (nausea typical)
Appetite begins to decrease significantly
First measurable weight loss (3-5 lbs)
Consistent weight loss trend emerges (1-2 lbs/week)
Significant cumulative results visible
Plateau occurs; maintenance phase begins
Personalized Efficacy Discussion
Every patient is different. Our pharmacists can discuss how these medications may work for your specific health goals and medical history.