Semaglutide
Approved medicineThe FDA has approved a version of this as a medicine, so it has been through large studies in people.
Also called Ozempic / Wegovy / Rybelsus / NN9535
A long-acting copy of a gut hormone. Approved for type 2 diabetes and for weight loss, backed by large studies in people.
The basics
- What is it?
- A medicine that copies a gut hormone your body makes after eating, which lowers appetite and blood sugar.
- What do we know?
- A lot. Large studies in tens of thousands of people show clear weight loss and better blood sugar. It is an approved medicine.
- What do we still not know?
- What happens over decades of use, and how much weight comes back after stopping.
Can a doctor prescribe this?
Yes. Pharmacies are allowed to make it, so a doctor can write a prescription for it.
The FDA has approved a version of this as a medicine.
FDA approved as a finished drug, and the active ingredient is legally compoundable under 503A.
Official status: On the 503A bulks list. Checked 2026-07-01.
Lab suppliers we list: 4
Doses used in research
Taken word for word from the studies and trials listed on this page. This is not a recommendation and not a dose for anyone to take.
In human trials
See source wording
under the skin · weekly
The Impact of Semaglutide Compared to Energy Restriction on Type 2 DiabetesPHASE4 · NCT07272343
“The semaglutide group received weekly subcutaneous semaglutide (0.25 mg for weeks 1-2, 0.5 mg for weeks 3-4, and 1.0 mg for weeks 5-12)..”
See source wording
weekly
Comparative Observation of Metabolic and Pharmacologic Adipose Remodeling With Enhanced Incretin AgonisTsNA · NCT07589322
“Starting at Tirzepatide 2.5 mg weekly and escalated as tolerated to 10 mg along with standardized lifestyle counseling by a dietitian (caloric deficit, physical activity guidance) and written materials..”
See source wording
under the skin
A Study of HS-20094 in T2DM ParticipantsPHASE2 · NCT06118008
“HS-20094 5mg.”
See source wording
under the skin · once a week · for 4 weeks
Treatment to Regress to Normoglycemia in Women with a Recent History of GDMPHASE4 · NCT04873050
“Start injection of semaglutide 0.25mg subcutaneously (SC) once a week for 4 weeks; step up to 0.5 mg SC QD for once a week for 4 weeks to a final dose of 1.0 mg semaglutide SQ weekly for 24 doses.”
2.4 mg
under the skin · weekly · for 5 weeks
A Research Study to Look at How Semaglutide Affects Gastric Emptying in People With ObesityPHASE1 · NCT03842202
“Participants will receive gradually increasing doses of semaglutide (subcutaneous \[s.c.\], in the thigh, abdomen or upper arm) injection once weekly, until they reach a dose of level of 2.4 mg, which they will continue for 5 weeks..”
See source wording
by mouth · daily
Efficacy of Oral Semaglutide in Overweight or ObesityPHASE4 · NCT05442450
“Treatment will be initiated with the 3 mg once-daily dose.”
50 mg
by mouth · once daily · for 68 weeks
Research Study to Investigate How Well Semaglutide Tablets Taken Once Daily Work in East Asian People Who Are Overweight or Living With ObesityPHASE3 · NCT05132088
“semaglutide 50 mg.”
2.4 mg
Phase III Clinical Study Comparing the Efficacy and Safety of GZR18 Injection and Semaglutide (Wegovy®) in Adult Obese or Overweight SubjectsPHASE3 · NCT07150975
“Semaglutide(Wegovy® )2.4 mg”
See source wording
under the skin · weekly · for 2 weeks
Mechanisms of Semaglutide Therapy in Heart Failure PatientsPHASE1, PHASE2 · NCT06541509
“After their baseline blood sample collections, all participants will receive once-weekly subcutaneous semaglutide (Ozempyc, Novo Nordisk A/S Bagsvaerd, Denmark) at a dose of 0.25 mg for 2 weeks, 0.5 mg for 2 weeks, and then 1.0 mg for a period of 12 weeks.”
2.4 mg
under the skin · weekly
A Research Study on How Well Semaglutide Works in Adolescents With Overweight or ObesityPHASE3 · NCT04102189
“2.4 mg or maximum tolerated dose (MTD) injected subcutaneously (under the skin, s.c.) once weekly.”
See source wording
under the skin · single dose · for 4 weeks
First Research Study to Look at How Two Medicines, NNC0480-0389 and Semaglutide, Work Together in Healthy People, in People With High Body Weight and in People With DiabetesPHASE1 · NCT04259801
“Part 1: Single dose of semaglutide (0.5 mg).”
1 mg
under the skin · weekly
Semaglutide in CFRDPHASE2, PHASE3 · NCT05788965
“Semaglutide 1 mg once weekly subcutaneous injection”
See source wording
under the skin · weekly
A Research Study to See How Well CagriSema Compared to Tirzepatide Helps People With Obesity Lose WeightPHASE3 · NCT06131437
“CagriSema 2.4 mg/2.4 mg.”
See source wording
under the skin · weekly · for 12 weeks
A Clinical Trial to Evaluate The Effects of Semaglutide and Empagliflozin Combined to Automated Insulin Delivery on Diabetes Control in Adults Living With Type 1 DiabetesPHASE3 · NCT06894784
“Semaglutide Injection: Subcutaneous injection, titrated over 12 weeks to a stable dose (1 mg), administered weekly.”
See source wording
weekly · for 2 month
Semaglutide for the Treatment of Glucose Intolerance in Women With Prior Gestational DiabetesPHASE3 · NCT05569772
“maintenance dose of 1mg SC once weekly.”
See source wording
weekly · for 4 weeks
16-week Flexible vs. 8-week Semaglutide TitrationPHASE3 · NCT04447859
“eight-week titration regimen as recommended in by the product label (0.25mg/week for 4 weeks, 0.5mg/week for 4 weeks, 1mg/week for the remainder of the therapy).”
See source wording
under the skin · weekly · for 4 weeks
Low-Dose Semaglutide for Weight Loss in Obese Non-Diabetic Pakistani AdultsPHASE4 · NCT07513168
“Locally available low-dose semaglutide (0.25 mg, 0.5 mg, 1 mg).”
See source wording
under the skin · every 4 weeks
Effect of Subcutaneous Semaglutide on Kidney Transplant CandidacyPHASE3 · NCT04741074
“Semaglutide 2 mg/1.5 ml (1.34 mg/ml), prefilled pen-injector for subcutaneous injection solution.”
See source wording
weekly
Semaglutide in Comorbid Schizophrenia Spectrum Disorder and ObesityNA · NCT05333003
“The semaglutide dose will start with 0.25 mg/week, and slowly increased every four weeks as tolerated up to a maximal dose of 2 mg/week.”
See source wording
under the skin · once daily · for 4 weeks
Renal Effects of Treatment With Empagliflozin Alone or in Combination With Semaglutide in Patients With Type 2 Diabetes and AlbuminuriaPHASE4 · NCT04061200
“Semaglutide, 1.34 mg/mL.”
See source wording
under the skin · once a week
A Study of BGM0504 in Participants with Type 2 DiabetesPHASE3 · NCT06716216
“Drug: 5 mg BGM0504 Administered SC.”
See source wording
by mouth · for 3 months
Sit Less, Interact and Move More (SLIMM) 2 StudyPHASE2 · NCT05173714
“Oral semaglutide 3 mg/day will be administered for the first month of study drug intervention period, if tolerated, the dose will increase to 7 mg/day for the second month and to a maximum dose of 14 mg/day from the third through ninth months of the drug intervention period..”
See source wording
under the skin · weekly · for 4-6 weeks
SHAPE-ENDO: Pilot Randomized Trial of Multimodal Pre-Surgical Optimization Versus Standard Surgery in Patients With Obesity and Early-Stage Endometrial CancerPHASE4 · NCT07462663
“Typical regimens include medroxyprogesterone acetate (400-600 mg/day) or megestrol acetate (160-320 mg/day).”
0.25 mg
single dose
“Subjects will receive 1 single dose of semaglutide 0.25 mg on 1 day.”
See source wording
by mouth · daily
A Proof-of-Concept Study to Evaluate Topical-Lingual Semaglutide in Adults With ObesityPHASE4 · NCT07728383
“Semaglutide 6 mg liquid emulsion formulation.”
See source wording
under the skin · once a week
A Study of BGM0504 in Participants With Type 2 Diabetes in IndonesiaPHASE3 · NCT07064486
“5 mg BGM0504.”
1 mg
under the skin · weekly
A Study of HRS9531 Versus Semaglutide Once Weekly as Add-on Therapy to Metformin Monotherapy or in Combination With SGLT2 Inhibitors in Participants With Type 2 DiabetesPHASE3 · NCT06649344
“Semaglutide-1mg”
See source wording
under the skin · every 4 weeks · for 24 weeks
A Research Study Comparing Blood Levels of Medicines NNC0194-0499 and Semaglutide Administered as a Combination Formulation Versus Two Separate FormulationsPHASE1 · NCT05766709
“NNC0194-0499/Semaglutide A (40/3.20 mg/mL).”
2.4 mg
under the skin · weekly · for 52 weeks
Research Study Looking at How Well Semaglutide Works in People Living With Obesity and PrediabetesPHASE3 · NCT05040971
“Semaglutide 2.4 mg.”
See source wording
under the skin · weekly · for 1 month
Efficacy and Safety of Empagliflozin or Semaglutide in Overweight/Obese Patients With Type 1 DiabetesPHASE2 · NCT06762314
“will include 35 patients who in addition to insulin (basal/bolus) will receive semaglutide 0.25 mg Sc once weekly for 1 month then increase to 0.5 mg SC once weekly for 2 months..”
See source wording
under the skin · weekly
Effects of Semaglutide on Brain Dopamine Responses to Food Cues in Adults With Obesity and Food Addiction TendenciesNA · NCT07732426
“Participants receive an 8-week subcutaneous semaglutide dose-escalation treatment using Wegovy: 0.25 mg once weekly for the first 4 weeks, followed by 0.5 mg once weekly for the next 4 weeks..”
See source wording
under the skin · weekly · for 16 weeks
Efficacy of Once Weekly Semaglutide in Patients With Type 2 Diabetes: a Non Randomized Clinical TrialPHASE4 · NCT07732218
“smaglutide was initiated at 0.25mg once weekly for the first 4 weeks, followed by 0.5mg once weekly for the subsequent 12 weeks.”
See source wording
under the skin · weekly · for 52 weeks
A Study of BGM0504 in Early T2DM With ObesityPHASE3 · NCT07743983
“BGM0504 Injection 15 mg.”
See source wording
under the skin · once daily
Fecal Microbiota Transplantation (FMT) Combined With Calorie-Restricted Diet and Semaglutide in Patients With Obesity and Type 2 DiabetesNA · NCT07599046
“Semaglutide (1 Mg Dose).”
See source wording
under the skin · weekly · for 16 weeks
Comparing Semaglutide Versus Placebo on Intestinal Barrier Function in Type 2 Diabetes Mellitus (SIB)PHASE4 · NCT04979130
“Semaglutide 1.34 mg/mL solution for injection in 1.5 mL pre-filled PDS290 pen-injector provided by Novo Nordisk..”
See source wording
for 4 weeks
“2.5mg for 4 weeks, 5mg for 4 weeks, 7.5mg for 4 weeks, 10mg for 12 weeks.”
1 mg
under the skin · weekly
Feasibility of Semaglutide in Advanced Lung DiseasePHASE1, PHASE2 · NCT05746039
“Semaglutide Pen Injector 1.0 mg weekly Once weekly subcutaneous injection Other Name: Wegovy”
See source wording
under the skin · single dose
A Research Trial Looking at the Comparability of 2 Different Concentrations of Semaglutide for the 0.5 Milligram (mg) DosePHASE1 · NCT05689099
“Semaglutide B, 1.34 mg/mL.”
See source wording
by mouth · once daily · for 68 weeks
Research Study to Compare Three Doses of Semaglutide Tablets Taken Once Daily in People With Type 2 DiabetesPHASE3 · NCT04707469
“Oral semaglutide 50 mg.”
See source wording
under the skin · weekly · for 8 weeks
“Semaglutide 1 mg.”
See source wording
under the skin
Investigating the Pharmacokinetics of Subcutaneous Injections With 1 mg/mL, 3 mg/mL, and 10 mg/mL Semaglutide Strengths and the Absolute Bioavailability of SemaglutidePHASE1 · NCT02231684
“under the skin) in two out of three different strengths (1mg/mL, 3mg/mL and 10 mg/mL)..”
50 mg
by mouth · daily · for 7 days
Effect of Itopride on Semaglutide GastroparesisPHASE4 · NCT07254715
“Itopride HCI 50 mg.”
See source wording
by mouth · once daily
Effect of Oral Contraceptives After Administration of Semaglutide in Subjects With Type 2 DiabetesPHASE1 · NCT01324505
“One tablet contains levonorgestrel 0.15 mg and ethinylestradiol 0.03 mg..”
See source wording
under the skin
A Research Study Looking at the Comparability (Bioequivalence) of Two Versions of SemaglutidePHASE1 · NCT04228354
“Semaglutide 0.68 mg/mL.”
1.34 mg/ml
under the skin · for 26 weeks
Regulatory Post Marketing Surveillance (rPMS) Study of Ozempic (Semaglutide) to Evaluate Safety and Effectiveness in Patients With Type 2 Diabetes Mellitus in Routine Clinical Practice in KoreaNot stated · NCT05689372
“Participants will receive Ozempic (solution for injection 1.34 mg/ml (Semaglutide s.c.) according to routine clinical practice conditions for 26 weeks.”
See source wording
weekly
Semaglutide Use in Elderly Obese PatientsPHASE2 · NCT05302596
“semaglutide (up to 1mg) once weekly injection added to the standard of care weight loss program.”
See source wording
under the skin · weekly · for 3-6 months
Preoperative Semaglutide Prior to Radical ProstatectomyEARLY_PHASE1 · NCT07727473
“Semaglutide 2.4 mg.”
See source wording
A Research Study of How the Medicine NNC0480-0389 Taken With Semaglutide Works in the Body of Healthy Chinese MenPHASE1 · NCT05498610
“1.7 mg NNC0408-0389 plus 0.5 mg semaglutide.”
See source wording
under the skin · weekly
Primary Prevention and Uterine Preservation in Premenopausal Women With Obesity and Endometrial HyperplasiaPHASE2 · NCT05829460
“Dosing will be escalated during weeks 1 through 16 (start at 0.25 mg up to 2.4 mg).”
See source wording
by mouth · once daily
Combined Active Treatment in Type 2 Diabetes With NASHPHASE4 · NCT04639414
“Empagliflozin 10mg oral tablet / Semaglutide 1mg pen injector.”
See source wording
weekly
GLP1-RAs Effects on Inflammatory and Endothelial Biomarkers in T2DMPHASE4 · NCT07314684
“The starting dose is 0.25 mg semaglutide once weekly.”
1 mg
weekly
ADJUnct Semaglutide Treatment in Type 1 DiabetesPHASE2 · NCT05537233
“Semaglutide up to 1 mg per week in addition to standard closed-loop therapy.”
- Roux-en-Y Gastric Bypass Compared to Glucagon-Like Peptide-1 Receptor Agonists is Associated with Lower Out-of-Pocket Costs in Insured Patients with Type 2 Diabetes and Obesity: A Matched Analysis Over Two Years.
Study in people
Obesity surgery · 2026
- New-Onset Alopecia Is Significantly Higher with Tirzepatide than with Semaglutide, Even After Weight-Loss Matching
Journal not recorded · 2026
- Reestimation of Medicare Spending for Semaglutide After Most Favored Nation and Medicare Drug Price Negotiation Announcements.
Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research · 2026
- Weight-loss dynamics with tirzepatide versus semaglutide.
PNAS nexus · 2026
- Ketoacidosis Risk in Non-diabetic Patients Using Semaglutide Versus Tirzepatide for Obesity: A Disproportionality Analysis of the FDA Adverse Event Reporting System.
Cureus · 2026
- Exploring Weight Loss Medication Discourse: Mixed Methods Analysis of US-Based Facebook Posts.
JMIR infodemiology · 2026
- Semaglutide-induced transient intestinal ischemia: A case report.
International journal of clinical pharmacology and therapeutics · 2026
- Ocular complications from glucagon-like peptide-1 receptor agonists: Clinical evidence, potential mechanisms, and clinical recommendations.
Journal of the Chinese Medical Association : JCMA · 2026
- The Ethics of Ozempic and Wegovy.
Journal of medical ethics · 2026
- Electrospun Nanofiber Oral Thin Film Platform for Sublingual Peptide Delivery: A Promising Alternative to Conventional Semaglutide Formulations.
Diabetes, obesity & metabolism · 2026
- Semaglutide showed limited improvements in patients with Alzheimer's disease: Revisiting the evoke and evoke + clinical trials.
Journal of Alzheimer's disease : JAD · 2026
- Prevalence and Factors Associated with GLP-1 Receptor Agonist Use for Weight Management Among Overweight and Obese Adults in the Eastern Province of Saudi Arabia.
Healthcare (Basel, Switzerland) · 2026
- Class-Wide Disproportionate Reporting of Impaired Gastric Emptying Across Nine Glucagon-Like Peptide-1 Receptor Agonist Products: A Signal-Detection Analysis of the FDA Adverse Event Reporting System
Journal not recorded · 2026
- Ethical considerations for semaglutide use in children.
Archives of disease in childhood · 2026
- Ischemic optic neuropathy with semaglutide: global observational analysis of sex- and formulation-specific risk.
The British journal of ophthalmology · 2026
- Decoding the hallmarks of GLP-1RA weight-loss super-responders.
Biology methods & protocols · 2026
- Misrepresentation of semaglutide in social media.
Naunyn-Schmiedeberg's archives of pharmacology · 2026
- Class-Wide Impaired Gastric Emptying Signal Across Nine GLP-1 Receptor Agonist Agents: Indication-Stratified Pharmacovigilance Analysis of 6,868 Cases in FDA FAERS (2004-2024) with Cross-National Validation
Journal not recorded · 2026
- Reply: The ethics of Ozempic and Wegovy.
Journal of medical ethics · 2026
- Sex-specific changes in GLP-1RA trends (2019-2024): Impact of FDA approval of semaglutide (Wegovy) for chronic weight management in the United States.
Diabetes, obesity & metabolism · 2026
- GLP-1 medications: use and interest in a representative survey of Finns.
International journal of obesity (2005) · 2026
- The unseen risk of Ozempic: NAION and vision damage.
Annals of medicine and surgery (2012) · 2025
- Online Information About Side Effects and Safety Concerns of Semaglutide: Mixed Methods Study of YouTube Videos.
JMIR infodemiology · 2025
- "Ozempic Face": An Emerging Drug-Related Aesthetic Concern and Its Treatment with Endotissutal Bipolar Radiofrequency (RF)-Our Experience.
Journal of clinical medicine · 2025
- The use of semaglutide medicines and risk of non-arteritic anterior ischemic optic neuropathy (NAION).
Saudi medical journal · 2025
- Blinded by the drug? A vigilyze signal linking semaglutide to NAION.
International ophthalmology · 2025
- Longitudinal Analysis of Obesity Drug Use and Public Awareness.
JAMA network open · 2025
- Semaglutide and Nonarteritic Anterior Ischemic Optic Neuropathy Risk Among Patients With Diabetes.
JAMA ophthalmology · 2025
- Semaglutide
Journal not recorded · 2006
- Efficacy and Safety of Semaglutide for Managing Antipsychotic-associated Weight Gain: A Systematic Review and Meta-analysis.
Review of earlier work
Indian journal of endocrinology and metabolism · 2026
- Evaluating the Efficacy, Safety, and Practical Considerations of Semaglutide for Weight Loss in Non-Diabetic Adults: A Narrative Review.
Review of earlier work
Health science reports · 2026
- Effect of GLP-1 Receptor Agonists in Heart Failure with Preserved Ejection Fraction: A Systematic Review and Meta-Analysis.
Review of earlier work
Journal of cardiovascular development and disease · 2026
- The ethics of Wegovy: promoting autonomy in pediatric care.
Review of earlier work
Medicine, health care, and philosophy · 2026
- A Review of the Oral Semaglutide in Adults with Overweight or Obesity (OASIS) Trials Evaluating Oral Semaglutide (Wegovy) for Chronic Weight Management in Adults With Overweight or Obesity.
Review of earlier work
Cureus · 2026
- Pharmacogenomics of GLP-1 Receptor Agonists: Precision Medicine in the Age of Ozempic and Mounjaro
Review of earlier work
Journal not recorded · 2026
- Semaglutide in Metabolic Dysfunction-Associated Steatohepatitis: A Narrative Review.
Review of earlier work
Cureus · 2025
- Comparative Efficacy of Tirzepatide vs. Semaglutide in Reducing Body Weight in Humans: A Systematic Review and Meta-Analysis of Clinical Trials and Real-World Data.
Review of earlier work
Journal of clinical medicine research · 2025
- Hypoglycaemic coma induced by a falsified semaglutide product: a case report.
Review of earlier work
European journal of hospital pharmacy : science and practice · 2025