Dulaglutide
A weekly GLP-1 medicine approved for type 2 diabetes and lower heart-event risk.
Also called: Trulicity, LY2189265.
GLP-1 / GIP / glucagon agonists · GLP-1 receptor agonist · Evidence: Approved drug.
What Dulaglutide does
Dulaglutide is a weekly GLP-1 medicine for type 2 diabetes. It is a GLP-1 and antibody-fragment fusion protein. Trials support blood-sugar control and fewer major heart events in adults with diabetes. It is not approved for weight management. Stomach upset is common, and dehydration, pancreatitis and eye complications need attention.
- Trulicity is approved for type 2 diabetes from age 10, and to lower major heart-event risk in some adults with diabetes. (Drug label)
- In a trial, the 1.5 mg dose lowered the long-term blood sugar score by 1.51 points, versus 0.46 on placebo. (Studied in a trial)
- In a large heart trial, 12.0% of people on dulaglutide had a major heart event, versus 13.4% in the comparison group. (Studied in a trial)
- Weight also fell in diabetes trials, though it is not approved for weight loss. (Studied in a trial)
Uses in the sources
Dulaglutide dosage
Typical reported dose: 0.75 mg once a week to start, up to 4.5 mg
- Trulicity: adult label only: 0.75 mg once weekly, then 1.5 mg once weekly, if needed, then 3 mg once weekly, if needed, then 4.5 mg once weekly, if needed once weekly, under the skin. Drug label. Studied in: Adults with type 2 diabetes. (source)
- Early trial: 0.1 mg weekly: 0.1 mg once weekly; fixed assigned dose. once weekly, under the skin. Studied in a trial. Studied in: Adults with type 2 diabetes on no other glucose medicine. (source)
- Early trial: 0.5 mg weekly: 0.5 mg once weekly; fixed assigned dose. once weekly, under the skin. Studied in a trial. Studied in: Adults with type 2 diabetes on no other glucose medicine. (source)
- Early trial: 1 mg weekly: 1 mg once weekly; fixed assigned dose. once weekly, under the skin. Studied in a trial. Studied in: Adults with type 2 diabetes on no other glucose medicine. (source)
- Early trial: 1.5 mg weekly: 1.5 mg once weekly; fixed assigned dose. once weekly, under the skin. Studied in a trial. Studied in: Adults with type 2 diabetes on no other glucose medicine. (source)
- EGO: 0.5 to 1: 0.5 mg once weekly, then 1 mg once weekly once weekly, under the skin. Studied in a trial. Studied in: Adults with type 2 diabetes taking two oral drugs. (source)
These are doses reported in labels, trials or user reports, not a personal plan. Check the source behind each one.
How to store Dulaglutide
Comes as: Ready-made single-use pens: 0.75, 1.5, 3 or 4.5 mg in 0.5 mL.
Mixed with: None; do not dilute, split, refill or transfer the prefilled dose..
- A pen contains one fixed dose; a powder vial is not the labeled formulation.
- No validated community reconstitution volumes or home-mixed stability data were found.
Before mixing: Refrigerate at 2–8°C in the carton, protected from light. Never freeze.
After mixing: No mixing. May be kept below 30°C for a total of 14 days; discard after the single injection.
Dulaglutide side effects and risks
Reported side effects
- Nausea: 0.75/1.5 mg: 12.4/21.1%; placebo 5.3%., moderate. Review persistent symptoms before increasing the dose; vomiting may cause dehydration. (source)
- Diarrhea: 0.75/1.5 mg: 8.9/12.6%; placebo 6.7%., moderate. Review persistent symptoms before increasing the dose; vomiting may cause dehydration. (source)
- Vomiting: 0.75/1.5 mg: 6.0/12.7%; placebo 2.3%., moderate. Review persistent symptoms before increasing the dose; vomiting may cause dehydration. (source)
- Abdominal pain: 0.75/1.5 mg: 6.5/9.4%; placebo 4.9%., moderate. Review persistent symptoms before increasing the dose; vomiting may cause dehydration. (source)
- Pancreatitis: In the high dose study: 1.5 mg 0.2%, 3 mg 0.3%, 4.5 mg 0.5%; rare severe cases reported., serious (source)
- Diabetic eye complications: REWIND: 1.9% versus placebo 1.5%; with prior retinopathy, 8.5% versus 6.2%., serious. Monitor existing diabetic retinopathy, especially during rapid glucose improvement. (source)
- Gallbladder disease: REWIND gallstones: 0.62 versus 0.56 events/100 patient years, adjusted for prior gallbladder removal., serious (source)
- Low blood sugar with insulin or sulfonylureas: AWARD 9 with basal insulin: 7.69 versus placebo 8.56 events/patient/year; one severe episode with dulaglutide., serious (source)
- Kidney injury from dehydration: Postmarketing cases, sometimes requiring dialysis; no reliable frequency., serious (source)
- Severe allergic reaction: Anaphylaxis and angioedema are reported; no reliable frequency., serious (source)
- Thyroid C-cell tumors: Rodent finding; whether dulaglutide causes these tumors in humans is unknown., serious (source)
Stop and get help if
- Severe, persistent belly pain, especially spreading to the back: Stop the drug and seek urgent care for possible pancreatitis.
- Face or throat swelling, trouble breathing, or collapse: Call emergency services now; do not take another dose.
- Confusion, seizure, fainting or low blood sugar that does not resolve: Get emergency care. If awake and able to swallow, use fast sugar while help is arranged.
- Repeated vomiting, inability to keep fluids down, or very little urine: Seek urgent assessment for dehydration and kidney injury.
- Upper-right belly pain with fever, yellow skin or pale stools: Seek urgent care for possible gallbladder or bile-duct disease.
- Sudden vision loss or a major new change in vision: Get urgent same-day eye or emergency assessment.
- Chest pain, marked breathlessness or fainting: Call emergency services now.
Who should avoid it
- pregnant: Weight loss is unsuitable; fetal-risk data are limited and animal findings raise concern.
- tryingToConceive: Review a stopping plan before conception; no safe conception interval was established in the extracted sources.
- breastfeeding: Human milk and infant-safety data are inadequate.
- under18: Some labeled diabetes or obesity uses include children; this is not a blanket pediatric label ban.
- mtcOrMen2: Personal or family medullary thyroid cancer or MEN2 is a label contraindication for this GLP-1 product.
- other: Do not re-expose after a serious allergic reaction to the drug or its ingredients.
- pancreatitisHistory: Past pancreatitis needs review; stop and urgently assess persistent severe abdominal pain.
- gallbladderDisease: Gallstones or previous gallbladder inflammation increase the need to assess new upper-abdominal pain.
- gastroparesis: Severe gastroparesis is a label reason to avoid use; these medicines further slow stomach emptying.
- eatingDisorderHistory: Listed as a reason to avoid it.
- kidneyDisease: Kidney function and hydration need review, especially with vomiting or diarrhea.
- liverDisease: Clinical experience in severe liver impairment is limited; review the specific product and other medicines.
- diabeticRetinopathy: Rapid glucose improvement can temporarily worsen diabetic eye disease; arrange appropriate eye follow-up.
- surgeryPlanned: Tell the anesthesia team. Delayed stomach emptying can leave food in the stomach despite fasting.
- diabetes: Review glucose monitoring and insulin or sulfonylurea doses. Do not rapidly stop insulin.
Interactions
- Insulin: Low blood sugar risk can rise. Insulin adjustment needs glucose readings; rapid withdrawal can cause ketoacidosis.
- Sulfonylureas and related insulin-releasing drugs: Low blood sugar can increase; a clinician may need to lower the companion drug dose.
- Another GLP-1 or GLP-1/GIP medicine: Avoid duplicate incretin therapy. Switching guidance stops the previous product rather than stacking both.
- DPP-4 inhibitors: Routine combination is not recommended because it adds little glucose benefit over GLP-1 therapy alone.
- Time-sensitive oral medicines: Slower stomach emptying can alter absorption timing; the effect is medicine-specific. Review critical oral drugs, especially with vomiting or poor intake.
- Warfarin: Monitor INR with initiation or changes; the label advises caution with narrow-therapeutic-index oral drugs.
Product quality risks
- Online GLP-1 products can contain the wrong amount, a different drug or contamination. A seller’s purity claim does not establish sterile injectable quality.
- Three online semaglutide vials had 28.56–38.69% excess drug and endotoxin. Those samples were not this compound.
- No direct laboratory survey of online dulaglutide products was found; semaglutide assay rates cannot be assigned to dulaglutide.
What to expect
117 registered interventional records found before the cutoff, including planned trials and comparator arms. Selected major reports appear below; this is not a completed-trial count.
Key studies
- EGO: early weekly dose steps: 0.5→1 mg −1.38%; 1 mg −1.32%; 1→2 mg −1.59%; placebo −0.24%. (source)
- Early weekly monotherapy: 0.5/1/1.5 mg: −0.9/−1.0/−1.0%; placebo 0.0%. The abstract does not give the 0.1 mg HbA1c result. (source)
- AWARD-5: seven-dose selection: 1.5 mg was selected as optimal; 0.75 mg was the second selected dose. (source)
- Higher doses: 1.5, 3 and 4.5 mg: 1.5/3/4.5 mg: −1.23/−1.31/−1.40%; placebo −0.44%. (source)
- AWARD-1: metformin plus pioglitazone: 1.5 mg −1.51%; 0.75 mg −1.30%; exenatide −0.99%; placebo −0.46%. (source)
- AWARD-2: versus basal insulin: 1.5 mg −1.08%; 0.75 mg −0.76%; glargine −0.63%. (source)
Dulaglutide FAQ
- Is Dulaglutide FDA-approved? Yes: Trulicity (type 2 diabetes age 10+; fewer major heart events in adults with diabetes and cardiovascular disease or multiple risk factors.). No US weight-management indication. March 2026 prescribing information checked.
- How do people take it? Under the skin, once weekly. Source: drug label.
- Can I take it with Metformin? Most AWARD studies used metformin background therapy for type 2 diabetes. Stomach symptoms can overlap; each drug retains its separate precautions. Source: studied in a trial. Ask a doctor before combining anything.
- Is it banned in sport? No, it is not on the banned list (WADA 2026). The 2026 monitoring program names semaglutide and tirzepatide, not this drug. Approved GLP-1 medicines remain permitted.
- How do I store it once opened? No mixing. May be kept below 30°C for a total of 14 days; discard after the single injection.
Related to Dulaglutide
- Semaglutide: A GLP-1 medicine with strong weight, glucose, heart and kidney evidence; dose and formulation matter.
- Tirzepatide: A weekly GIP/GLP-1 injection with strong diabetes and weight-loss evidence and common stomach side effects.
- Retatrutide: An experimental weekly injection with phase 3 weight-loss results.
- Liraglutide: A daily GLP-1 injection approved for weight management and type 2 diabetes.
- Exenatide: An older GLP-1 with twice-daily and weekly forms, now widely discontinued.
Sources
- 9. Pharmacologic Approaches to Glycemic Treatment: Standards of Care in Diabetes—2026, 2026
- Compounding and the FDA: Questions and Answers, FDA · FDA · 2026
- Consensus-based clinical and research recommendations for use of glucagon-like peptide-1 receptor agonists in the context of eating disorders: a modified Delphi study., Keshen A et al. · World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
- GLP-1 receptor agonists and dual GLP-1/GIP receptor agonists: strengthened warnings on acute pancreatitis, including necrotising and fatal cases, 2026
- The 2026 Monitoring Program, World Anti-Doping Agency · 2026
- Therapeutic Goods (Poisons Standard—October 2026) Instrument 2026, Australian Government · Australian Government · 2026
- TRULICITY, 2026
- Trulicity: pediatric type 2 diabetes, age 10+ — prescribing information, sections 1 and 2, DailyMed · 2026
- Weight Loss Drugs: What athletes need to know about GLP-1s, USADA · 2026
- Nutritional priorities to support GLP-1 therapy for obesity: A joint advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and the Obesity Society., Mozaffarian D et al. · Obesity pillars · 2025
- GLP-1 receptor agonists: reports of diabetic ketoacidosis when concomitant insulin was rapidly reduced or discontinued, 2019
- Product information
- Trulicity | European Medicines Agency (EMA)
- Comparison of Pediatric and Adult Glucagon-Like Peptide-1 Receptor Agonist Exposures Reported To United States Poison Centers, 2017-2024., Senthilkumar A et al. · Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2026
- Cardiovascular Outcomes with Tirzepatide versus Dulaglutide in Type 2 Diabetes., Nicholls SJ et al. · The New England journal of medicine · 2025
Sources checked: 2026-10-18.
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