Understanding GLP-1 Medications
Your comprehensive guide to GLP-1 receptor agonist drugs — how they work, their benefits, side effects, and how the major medications compare.
8+
FDA-Approved GLP-1 Medications
2006
First GLP-1 Drug Approved (Byetta)
15%+
Average Body Weight Reduction
What Are GLP-1 Medications?
GLP-1 receptor agonists are a class of prescription medications that mimic the action of glucagon-like peptide-1, a hormone your body naturally produces in the gut after eating. This hormone plays a key role in regulating blood sugar, appetite, and digestion.
Originally developed to treat type 2 diabetes, GLP-1 drugs have since demonstrated remarkable effectiveness for chronic weight management and cardiovascular risk reduction. Medications like semaglutide and tirzepatide have shown weight loss results of 15–22% of body weight in clinical trials.
Today, GLP-1 receptor agonists are among the most prescribed medications in the United States, with both injectable and oral formulations available.
Appetite Reduction
GLP-1 drugs signal satiety centers in the brain, reducing hunger and helping patients eat less without constant willpower.
Blood Sugar Control
By stimulating insulin secretion and suppressing glucagon, GLP-1s help maintain stable blood glucose levels throughout the day.
Cardiovascular Benefits
Several GLP-1 medications have been shown to reduce major adverse cardiovascular events in clinical trials, including heart attack and stroke risk.
Weight Management
Through slower gastric emptying and reduced appetite, GLP-1 drugs support clinically significant and sustained weight loss over time.
Popular GLP-1 Medications
Explore the most widely prescribed GLP-1 receptor agonists currently on the market.
Ozempic
Semaglutide · Novo Nordisk
FDA-Approved For
- Type 2 Diabetes
Wegovy
Semaglutide · Novo Nordisk
FDA-Approved For
- Chronic Weight Management
Mounjaro
Tirzepatide · Eli Lilly
FDA-Approved For
- Type 2 Diabetes
Zepbound
Tirzepatide · Eli Lilly
FDA-Approved For
- Chronic Weight Management
Rybelsus
Oral Semaglutide · Novo Nordisk
FDA-Approved For
- Type 2 Diabetes
Trulicity
Dulaglutide · Eli Lilly
FDA-Approved For
- Type 2 Diabetes
- CV Risk Reduction
How Do GLP-1 Drugs Work?
GLP-1 receptor agonists work through a three-step mechanism that targets multiple systems in your body to help regulate weight and blood sugar.
Mimic Natural GLP-1
The medication binds to the same receptors as natural GLP-1 hormone, but with a much longer duration of action — lasting days instead of minutes.
Slow Gastric Emptying
Food moves through your stomach more slowly, keeping you feeling full longer after meals and reducing overall calorie intake naturally.
Signal Brain Satiety Centers
GLP-1 receptors in the hypothalamus are activated, reducing hunger signals and cravings at the neurological level — making it easier to eat less.
Who Are GLP-1 Medications For?
GLP-1 receptor agonists are prescribed for several conditions. Your eligibility depends on your medical history, BMI, and overall health profile.
Type 2 Diabetes
GLP-1 drugs like Ozempic, Mounjaro, and Trulicity are FDA-approved to improve glycemic control in adults with type 2 diabetes, often as an add-on to metformin or other therapies.
Approved drugs: Ozempic, Mounjaro, Trulicity, Rybelsus
Chronic Weight Management
For adults with a BMI of 30 or greater — or 27 or greater with at least one weight-related comorbidity (such as hypertension, dyslipidemia, or sleep apnea) — medications like Wegovy and Zepbound are approved for long-term weight management.
Approved drugs: Wegovy, Zepbound
Cardiovascular Risk Reduction
Select GLP-1 drugs have demonstrated reduced risk of major adverse cardiovascular events (MACE) in patients with established cardiovascular disease, independent of their effect on blood sugar.
Approved drugs: Wegovy, Ozempic, Trulicity
Eligibility for GLP-1 medications is determined by a licensed healthcare provider based on your individual health profile. These medications require a prescription.
GLP-1 Drugs at a Glance
A quick comparison of the four most popular GLP-1 medications.
Ozempic
Semaglutide
Wegovy
Semaglutide
Mounjaro
Tirzepatide
Zepbound
Tirzepatide
Top GLP-1 Providers
We reviewed 41 telehealth providers. Here are our top picks for compounded semaglutide and tirzepatide.
CoreAge Rx
★★★★★ 4.9
Flat-rate pricing for compounded semaglutide and tirzepatide with NABP-verified pharmacies.
Mochi Health
★ 4.8
Obesity SpecialistsRead Review →
Henry Meds
★ 4.7
Top RatedRead Review →
JumpstartMD
★ 4.7
ComprehensiveRead Review →
LifeMD
★ 4.7
Top RatedRead Review →
GoodRx Care
★ 4.7
Trusted BrandRead Review →
Hers
★ 4.6
EstablishedRead Review →
Hims
★ 4.6
EstablishedRead Review →
Noom
★ 4.6
Behavior ChangeRead Review →
Lemonaid Health
★ 4.6
EstablishedRead Review →
Good Life Meds
★ 4.6
Highly RatedRead Review →
Common Side Effects
Most side effects of GLP-1 medications are gastrointestinal and tend to be mild to moderate, improving as your body adjusts over the first few weeks.
Nausea
Very Common (>20%)
The most frequently reported side effect, usually strongest during dose escalation.
Vomiting
Common (10–20%)
Often occurs alongside nausea and typically decreases over time with continued use.
Diarrhea
Common (10–20%)
Usually mild and self-limiting. Staying hydrated and eating smaller meals can help.
Decreased Appetite
Very Common (>15%)
A therapeutic effect for weight management, but important to maintain adequate nutrition.
Frequently Asked Questions
Quick answers to the most common questions about GLP-1 medications.
Medical Disclaimer
The information on this website is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. GLP-1 receptor agonist medications are prescription drugs that should only be used under the guidance of a qualified healthcare provider. Always consult your doctor or pharmacist before starting, stopping, or changing any medication. Individual results may vary. This site does not endorse any specific medication or treatment plan.
Have Questions?
Check out our FAQ section for answers to the most commonly asked questions about GLP-1 medications.
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