What is dulaglutide?
Dulaglutide is the active ingredient in Trulicity, Eli Lilly’s once-weekly GLP-1 injection for type 2 diabetes. It’s been on the market since 2014 and is known for two things: a very easy-to-use auto-injector pen, and strong evidence that it lowers cardiovascular risk in people with diabetes.
Unlike semaglutide or tirzepatide, dulaglutide is not approved for weight loss. People do tend to lose a few pounds on it, but that’s a secondary effect — it’s prescribed to manage blood sugar and protect the heart, not primarily to slim down.
Dulaglutide brand name
Dulaglutide is sold under a single brand name, with no weight-loss version and no generic yet.
| Brand | Approved for | Form | FDA year |
|---|---|---|---|
| Trulicity | Type 2 diabetes | Weekly injection | 2014 |
How does dulaglutide work?
Dulaglutide mimics GLP-1, the gut hormone that steadies blood sugar and curbs appetite. It prompts your body to release insulin when blood sugar is high, slows digestion, and modestly reduces appetite. In the large REWIND trial it also lowered the risk of major cardiovascular events — one reason it’s a common choice for people with diabetes and heart risk. It’s part of the broader GLP-1 drug class.
What are the side effects of dulaglutide?
The same digestive-heavy profile as other GLP-1 drugs, usually mild and easing over time.
Common · usually temporary
- Nausea ~21%
- Diarrhea ~13%
- Vomiting ~10%
- Stomach pain ~9%
- Fatigue ~5%
Serious · call your provider
- Pancreatitis (severe abdominal pain that won't go away)
- Gallbladder problems, including gallstones
- Serious allergic reactions
- Low blood sugar — mainly when combined with insulin or sulfonylureas
Dulaglutide dosage
Dulaglutide is taken once weekly and comes in a pre-filled pen with no dose mixing. Per the FDA label:
| Dose | When | Notes |
|---|---|---|
| 0.75 mg | Starting dose | Once weekly; some start here for tolerability |
| 1.5 mg | Maintenance | Common maintenance dose |
| 3.0–4.5 mg | If more control is needed | 4.5 mg is the maximum |
Dulaglutide vs other GLP-1 drugs
Dulaglutide is a solid diabetes drug, but for weight loss the newer molecules are stronger.
| Attribute | Dulaglutide | Semaglutide |
|---|---|---|
| Active ingredient | dulaglutide | semaglutide |
| Sold as | Trulicity | Ozempic · Wegovy · Rybelsus |
| How it’s taken | Weekly injection | Weekly injection · Daily pill |
| FDA-approved for | Type 2 diabetes | Type 2 diabetes · Weight loss |
| Avg. weight loss in trials | ~3% | ~15% |
| Maker | Eli Lilly | Novo Nordisk |
Dulaglutide vs Semaglutide
Both are weekly GLP-1 injections, but semaglutide lowers blood sugar and weight somewhat more; dulaglutide's pen is famously simple to use.
Full comparison: Dulaglutide vs SemaglutideHow to get dulaglutide
Dulaglutide is prescription-only, dispensed as Trulicity. Talk to your doctor or a licensed telehealth provider.
1
Through your doctor
Any prescriber can write dulaglutide. Bring your insurance details — coverage often requires prior authorization, and your doctor's office handles that paperwork.
2
Through telehealth
Licensed online clinics evaluate you remotely and, if appropriate, prescribe dulaglutide or a dulaglutide-based program — usually within a few days.
3
Pharmacy + savings
Prescriptions fill at regular pharmacies or the maker's direct program. Check the manufacturer savings card before paying list price.
Telehealth options we've reviewed
All provider reviewsNo legitimate dulaglutide without a prescription. Sellers offering it with no medical review are operating outside the law, and counterfeit pens are common — stick to licensed providers and pharmacies. Important safety information
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