What is dulaglutide?
Dulaglutide is the active ingredient in Trulicity, Eli Lilly’s once-weekly GLP-1 injection, on the market since 2014. It is approved to improve blood sugar in adults and children aged 10 and older with type 2 diabetes, and to reduce the risk of major cardiovascular events.
That cardiovascular indication is broader than most in this class. It covers adults with established cardiovascular disease or with multiple cardiovascular risk factors, where its peers generally require established disease.
Unlike semaglutide or tirzepatide, dulaglutide is not approved for weight loss at any dose, and there is no higher-dose weight-management version of it.
Dulaglutide brand name
Dulaglutide is sold under a single brand name, with no weight-management version and no approved generic.
| Product | Approved for | Ages | Maximum dose |
|---|---|---|---|
| Trulicity | Type 2 diabetes, plus cardiovascular risk reduction | Adults and children 10+ | 4.5 mg adults, 1.5 mg children |
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.
Receptors it activates
Single agonist · GLP-1
- GLP-1
Curbs appetite and triggers insulin after meals
- GIP
Not activated
- glucagon
Not activated
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 12.4–21.1% vs 5.3%
- Diarrhea 8.9–12.6% vs 6.7%
- Vomiting 6.0–12.7% vs 2.3%
- Abdominal pain 6.5–9.4% vs 4.9%
- Decreased appetite 4.9–8.6% vs 1.6%
- Fatigue 4.2–5.6% vs 2.6%
Serious · call your provider
- Thyroid C-cell tumors (boxed warning, from rat studies)
- Acute pancreatitis
- Low blood sugar, when combined with insulin or an insulin secretagogue
- Serious allergic reactions
- Acute kidney injury from dehydration
- Severe digestive reactions
- Diabetic retinopathy complications in people with a history of retinopathy
- Acute gallbladder disease
- Pulmonary aspiration during general anesthesia or deep sedation
Who should not take dulaglutide?
Dulaglutide works for most adults with type 2 diabetes, but two conditions make it a hard no, and several more are worth raising with your prescriber first.
Do not take dulaglutide if…
- You or a close family member has had medullary thyroid carcinoma (MTC)
- You have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
- You've had a serious hypersensitivity reaction to dulaglutide or any component of Trulicity
Talk to your provider first if…
- You've had pancreatitis or gallbladder disease
- You have kidney disease or a history of dehydration
- You take insulin or a sulfonylurea (higher risk of low blood sugar)
- You have severe gastroparesis, which the label says makes it not recommended
- You have a history of diabetic retinopathy
- You have a surgery or procedure scheduled that needs anesthesia or sedation
- You're pregnant, planning to be, or breastfeeding
- You have type 1 diabetes, which dulaglutide is not approved for
The boxed warning drives the absolute contraindications: a personal or family history of medullary thyroid cancer or MEN 2 rules dulaglutide out. The second column isn’t a stop sign, just a reason to make sure your provider has the full picture before you start.
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 | Weeks 1–4 | Starting dosage, and also the pediatric starting dosage |
| 1.5 mg | After 4 weeks | Common maintenance dosage, and the maximum for children aged 10 and older |
| 3 mg | After at least 4 weeks at 1.5 mg | Adults only |
| 4.5 mg | After at least 4 weeks at 3 mg | Maximum adult dosage |
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 |
| Receptors targeted | Single: GLP-1 | Single: GLP-1 |
| How it’s taken | Weekly injection | Weekly injection · Daily pill |
| FDA-approved for | Type 2 diabetes | Type 2 diabetes · Weight management |
| Avg. weight loss in trials | – | ~15% |
| List price (before insurance) | – | ~$935–$1,349/mo |
| 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.
How 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, since 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
We're independent: we don't sell medication. Some links may earn us a commission at no cost to you; it never affects what we recommend. Prices change often, so always confirm with the provider.
Dulaglutide myths and misconceptions
Because it shares a class with the famous weight-loss drugs, dulaglutide picks up a few misconceptions of its own. Here’s what’s actually true.
Myth Dulaglutide is the same as semaglutide, or Ozempic.
They're different molecules. Both are once-weekly GLP-1 injections, but dulaglutide is Trulicity and semaglutide is Ozempic, semaglutide generally lowers A1C and weight somewhat more.
Myth Dulaglutide drives big weight loss.
Its weight effect is modest, usually a few percent of body weight. It's approved for type 2 diabetes, not weight loss, and the newer molecules are stronger for slimming down.
Myth There's a generic or compounded dulaglutide.
There isn't. Dulaglutide is sold only as brand-name Trulicity, no FDA-approved generic and no legitimate compounded version. Anything advertised otherwise isn't the real drug.
Myth Dulaglutide is a form of insulin.
No, it's an incretin, a GLP-1 receptor agonist. It prompts your own pancreas to release insulin when blood sugar is high; it doesn't replace insulin and works in a different way.
Myth Trulicity and dulaglutide are two different things.
Trulicity is simply the brand name for dulaglutide. Same drug, one is the ingredient, the other is Eli Lilly's label for it.