Zepbound® (Tirzepatide) Safety Information
Important safety information for Zepbound® (tirzepatide).
Safety information · Zepbound® (tirzepatide) · Updated Jun 9, 2026
Do Not Use Zepbound® If You Have:
Type 1 diabetes
Diabetic ketoacidosis
Diabetic retinopathy
Kidney disease
Thyroid cancer
Pancreatitis
Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
A serious allergic reaction to tirzepatide or any ingredient in Zepbound®
Before Using Zepbound®
Tell your healthcare provider if you have:
Pancreas, kidney, or gallbladder problems
Severe stomach problems (including gastroparesis or difficulty digesting food)
A history of diabetic retinopathy
Depression, suicidal thoughts, or other mental health changes
Any other medical condition or allergies
Also tell your healthcare provider if you:
Take diabetes medicines such as insulin or sulfonylureas (may increase risk of low blood sugar)
Take birth control pills. Effectiveness may decrease for 4 weeks after starting or increasing your Zepbound® dose; you may need an alternative form of contraception
Take any prescription, over-the-counter, or herbal medicines
Are pregnant, planning to become pregnant, or breastfeeding (Zepbound® may harm your unborn baby; it is unknown if it passes into breast milk)
Pregnancy Exposure Registry: If you take Zepbound® while pregnant, you may be eligible to enroll in a registry that monitors health outcomes for you and your baby. Call Lilly at 1-800-LillyRx (1-800-545-5979).
Serious Warnings: Call Your Doctor Immediately If You Experience:
Thyroid C-cell tumor symptoms (see Black Box Warning above)
Severe stomach problems: pain or discomfort that will not go away
Pancreatitis: severe abdominal pain (with or without vomiting) that may radiate to your back
Gallbladder disease: upper abdominal pain, fever, yellowing skin or eyes, clay-colored stools
Kidney problems or kidney failure: especially if dehydrated from nausea, vomiting, or diarrhea
Serious allergic reaction: swelling of face, lips, tongue, or throat; difficulty breathing or swallowing; rash, itching, fainting, dizziness, or rapid heartbeat
Low blood sugar (hypoglycemia): dizziness, sweating, confusion, blurred vision, slurred speech, shakiness, rapid heartbeat, hunger, irritability, especially if on insulin or sulfonylureas
Changes in vision (especially if you have type 2 diabetes)
Depression or suicidal thoughts: changes in mood, behavior, or thoughts
Common Side Effects
Some people have no side effects. The most common include:
Nausea, vomiting, diarrhea, constipation, abdominal pain
Indigestion, acid reflux, belching, sour stomach
Injection site reactions
Fatigue
Allergic reactions
Hair loss
Heartburn
Gallbladder disease symptoms
Low blood sugar (in people with type 2 diabetes on certain medications)
Side effects often lessen over time as your body adjusts. Contact your healthcare provider if they persist or worsen.
Other Safety Notes
Zepbound® should be used with a reduced-calorie diet and increased physical activity.
Do not use with other tirzepatide-containing products or any GLP-1 receptor agonists.
Safety with other prescription, over-the-counter, or herbal weight-loss products is unknown.
Zepbound® has not been studied in children under 18.
Your healthcare provider should train you on proper injection technique before your first dose.
Emergency Information
In a medical emergency, call 911 or go to the nearest emergency room.
To report side effects, contact the FDA at 1-800-FDA-1088 or visit www.fda.gov/medwatch.
Education only, not medical advice.