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tirzepatide

This site provides information about Mounjaro® (tirzepatide) and Zepbound® (tirzepatide), our prescription-only, FDA-approved medicines containing tirzepatide.

Adults with Type 2 Diabetes

Mounjaro logo

Mounjaro is an injectable prescription medicine that is used along with diet and exercise to improve blood sugar (glucose) in adults with type 2 diabetes mellitus.

It is not known if Mounjaro can be used in people who have had pancreatitis. Mounjaro is not for use in people with type 1 diabetes. It is not known if Mounjaro is safe and effective for use in children under 18 years of age.

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Prescribing Information, Instructions for Use, and Medication Guide

Adults with Obesity and Chronic Weight Management

now approved once weekly ZEPBOUND tirzepatide injection logo

Zepbound is an injectable prescription medicine that may help adults with obesity, or with excess weight (overweight) who also have weight-related medical problems, lose weight and keep it off. Zepbound should be used with a reduced-calorie diet and increased physical activity.

Zepbound contains tirzepatide and should not be used with other tirzepatide-containing products or any GLP-1 receptor agonist medicines. It is not known if Zepbound is safe and effective when taken with other prescription, over-the-counter, or herbal weight loss products. It is not known if Zepbound can be used in people who have had pancreatitis. It is not known if Zepbound is safe and effective for use in children under 18 years of age.

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Prescribing Information, Instructions for Use, and Medication Guide

What to Know About Compounded and Counterfeit Mounjaro and Zepbound (tirzepatide)

Plus: How to Know if You Have Authentic Mounjaro and Zepbound Medication

  • Compounding is the process of combining, mixing, or altering ingredients to create a medication tailored to the needs of an individual patient. Neither the FDA nor any global regulatory agency has reviewed these products for safety, quality, or efficacy.
  • Counterfeit medication is fake medication and may be harmful to your health. It is also illegal.
  • Authentic Mounjaro and Zepbound are manufactured only by Eli Lilly and Company ("Lilly"), and available only from authorized sources, such as licensed pharmacies.

Mounjaro is an injectable prescription medicine that is used along with diet and exercise to improve blood sugar (glucose) in adults with type 2 diabetes mellitus. Zepbound is an injectable prescription medicine that may help adults with obesity, or with excess weight (overweight) who also have weight-related medical problems, lose weight and keep it off. Zepbound should be used with a reduced-calorie diet and increased physical activity. They are manufactured exclusively by Lilly and both contain the active ingredient tirzepatide. Lilly does not sell Mounjaro, Zepbound, or tirzepatide for the purpose of compounding.

Products claiming to be tirzepatide, Mounjaro or Zepbound that are made and/or distributed by compounding pharmacies have not been reviewed nor approved by the Food and Drug Administration (FDA) or global regulatory agencies for safety, quality or efficacy. These products may expose patients to potentially serious health risks.

In the U.S., Mounjaro and Zepbound are currently only available in a pre-filled single-dose pen manufactured by Lilly. They are NOT available in any other form, such as powder, vial, or KwikPen.

If someone is concerned that they have received or used compounded or counterfeit tirzepatide or are concerned they may have received medicine from an un-authorized source, they should contact their health care provider to discuss options and next steps.

  • Patients and health care providers are encouraged to report compounded or counterfeit Mounjaro or Zepbound by calling the Lilly Answers Center (TLAC) at 1-800-LillyRx (1-800-545-5979).

Learn about our position on safety risks of using compounded tirzepatide.

Identifying Authentic Mounjaro and Zepbound

Compounded or counterfeit Mounjaro or Zepbound will look different from the authentic branded medication. Knowing what an authentic Mounjaro or Zepbound pen and its packaging look like can help you avoid counterfeit or compounded medication.

Mounjaro

  1. Purple injection button
  2. Mounjaro federally registered trademarks
  3. Tri-lobular-shaped base cap in a distinctive shade of gray (Trademarked)
  1. Script Lilly logo in black ink

Zepbound

  1. Purple injection button
  2. Zepbound federally registered trademarks
  3. Tri-lobular-shaped base cap in a distinctive shade of gray (Trademarked)
  1. Script Lilly logo in red ink

SAFETY SUMMARY WITH WARNINGS FOR MOUNJARO

Warnings -

Mounjaro may cause tumors in the thyroid, including thyroid cancer. Watch for possible symptoms, such as a lump or swelling in the neck, hoarseness, trouble swallowing, or shortness of breath. If you have any of these symptoms, tell your healthcare provider.

  • Do not use Mounjaro if you or any of your family have ever had a type of thyroid cancer called medullary thyroid carcinoma (MTC).
  • Do not use Mounjaro if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
  • Do not use Mounjaro if you are allergic to it or any of the ingredients in Mounjaro.

Mounjaro may cause serious side effects, including:

Inflammation of the pancreas (pancreatitis). Stop using Mounjaro and call your healthcare provider right away if you have severe pain in your stomach area (abdomen) that will not go away, with or without vomiting. You may feel the pain from your abdomen to your back.

Low blood sugar (hypoglycemia). Your risk for getting low blood sugar may be higher if you use Mounjaro with another medicine that can cause low blood sugar, such as a sulfonylurea or insulin. Signs and symptoms of low blood sugar may include dizziness or light-headedness, sweating, confusion or drowsiness, headache, blurred vision, slurred speech, shakiness, fast heartbeat, anxiety, irritability, or mood changes, hunger, weakness and feeling jittery.

Serious allergic reactions. Stop using Mounjaro and get medical help right away if you have any symptoms of a serious allergic reaction, including swelling of your face, lips, tongue or throat, problems breathing or swallowing, severe rash or itching, fainting or feeling dizzy, and very rapid heartbeat.

Kidney problems (kidney failure). In people who have kidney problems, diarrhea, nausea, and vomiting may cause a loss of fluids (dehydration), which may cause kidney problems to get worse. It is important for you to drink fluids to help reduce your chance of dehydration.

Severe stomach problems. Stomach problems, sometimes severe, have been reported in people who use Mounjaro. Tell your healthcare provider if you have stomach problems that are severe or will not go away.

Changes in vision. Tell your healthcare provider if you have changes in vision during treatment with Mounjaro.

Gallbladder problems. Gallbladder problems have happened in some people who use Mounjaro. Tell your healthcare provider right away if you get symptoms of gallbladder problems, which may include pain in your upper stomach (abdomen), fever, yellowing of skin or eyes (jaundice), and clay-colored stools.

Common side effects

The most common side effects of Mounjaro include nausea, diarrhea, decreased appetite, vomiting, constipation, indigestion, and stomach (abdominal) pain. These are not all the possible side effects of Mounjaro. Talk to your healthcare provider about any side effect that bothers you or doesn’t go away.

Tell your healthcare provider if you have any side effects. You can report side effects at 1-800-FDA-1088 or www.fda.gov/medwatch.

Before using Mounjaro

  • Your healthcare provider should show you how to use Mounjaro before you use it for the first time.
  • Talk to your healthcare provider about low blood sugar and how to manage it.
  • If you take birth control pills by mouth, talk to your healthcare provider before you use Mounjaro. Birth control pills may not work as well while using Mounjaro. Your healthcare provider may recommend another type of birth control for 4 weeks after you start Mounjaro and for 4 weeks after each increase in your dose of Mounjaro.

Review these questions with your healthcare provider:

  • Do you have other medical conditions, including problems with your pancreas or kidneys, or severe problems with your stomach, such as slowed emptying of your stomach (gastroparesis) or problems digesting food?
  • Do you take other diabetes medicines, such as insulin or sulfonylureas?
  • Do you have a history of diabetic retinopathy?
  • Are you pregnant, plan to become pregnant, breastfeeding, or plan to breastfeed? It is not known if Mounjaro will harm your unborn baby or pass into your breast milk.
  • Do you take any other prescription medicines or over-the-counter drugs, vitamins, or herbal supplements?

How to take

  • Read the Instructions for Use that come with Mounjaro.
  • Use Mounjaro exactly as your healthcare provider says.
  • Mounjaro is injected under the skin (subcutaneously) of your stomach (abdomen), thigh, or upper arm.
  • Use Mounjaro 1 time each week, at any time of the day.
  • Do not mix insulin and Mounjaro together in the same injection.
  • You may give an injection of Mounjaro and insulin in the same body area (such as your stomach area), but not right next to each other.
  • Change (rotate) your injection site with each weekly injection. Do not use the same site for each injection.
  • If you take too much Mounjaro, call your healthcare provider or seek medical advice promptly.

Learn more

Mounjaro is a prescription medicine. For more information, call 1-833-807-MJRO (833-807-6576) or go to www.mounjaro.com.

This summary provides basic information about Mounjaro but does not include all information known about this medicine. Read the information that comes with your prescription each time your prescription is filled. This information does not take the place of talking with your healthcare provider. Be sure to talk to your healthcare provider about Mounjaro and how to take it. Your healthcare provider is the best person to help you decide if Mounjaro is right for you.

TR CON CBS 14SEP2022

Mounjaro® and its delivery device base are registered trademarks owned or licensed by Eli Lilly and Company, its subsidiaries, or affiliates.

SAFETY SUMMARY WITH WARNINGS FOR ZEPBOUND

Warnings -

Zepbound may cause tumors in the thyroid, including thyroid cancer. Watch for possible symptoms, such as a lump or swelling in the neck, hoarseness, trouble swallowing, or shortness of breath. If you have any of these symptoms, tell your healthcare provider.

  • Do not use Zepbound if you or any of your family have ever had a type of thyroid cancer called medullary thyroid carcinoma (MTC).
  • Do not use Zepbound if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
  • Do not use Zepbound if you have had a serious allergic reaction to tirzepatide or any of the ingredients in Zepbound.

Zepbound may cause serious side effects, including:

Severe stomach problems. Stomach problems, sometimes severe, have been reported in people who use Zepbound. Tell your healthcare provider if you have stomach problems that are severe or will not go away.

Kidney problems (kidney failure). Diarrhea, nausea, and vomiting may cause a loss of fluids (dehydration), which may cause kidney problems. It is important for you to drink fluids to help reduce your chance of dehydration.

Gallbladder problems. Gallbladder problems have happened in some people who use Zepbound. Tell your healthcare provider right away if you get symptoms of gallbladder problems, which may include pain in your upper stomach (abdomen), fever, yellowing of skin or eyes (jaundice), or clay-colored stools.

Inflammation of the pancreas (pancreatitis). Stop using Zepbound and call your healthcare provider right away if you have severe pain in your stomach area (abdomen) that will not go away, with or without vomiting. You may feel the pain from your abdomen to your back.

Serious allergic reactions. Stop using Zepbound and get medical help right away if you have any symptoms of a serious allergic reaction, including swelling of your face, lips, tongue or throat, problems breathing or swallowing, severe rash or itching, fainting or feeling dizzy, or very rapid heartbeat.

Low blood sugar (hypoglycemia). Your risk for getting low blood sugar may be higher if you use Zepbound with medicines that can cause low blood sugar, such as a sulfonylurea or insulin. Signs and symptoms of low blood sugar may include dizziness or light-headedness, sweating, confusion or drowsiness, headache, blurred vision, slurred speech, shakiness, fast heartbeat, anxiety, irritability, mood changes, hunger, weakness or feeling jittery.

Changes in vision in patients with type 2 diabetes. Tell your healthcare provider if you have changes in vision during treatment with Zepbound.

Depression or thoughts of suicide. You should pay attention to changes in your mood, behaviors, feelings or thoughts. Call your healthcare provider right away if you have any mental changes that are new, worse, or worry you.

Common side effects

The most common side effects of Zepbound include nausea, diarrhea, vomiting, constipation, stomach (abdominal) pain, indigestion, injection site reactions, feeling tired, allergic reactions, belching, hair loss, and heartburn. These are not all the possible side effects of Zepbound. Talk to your healthcare provider about any side effect that bothers you or doesn’t go away.

Tell your doctor if you have any side effects. You can report side effects at 1-800-FDA-1088 or www.fda.gov/medwatch.

Before using Zepbound

  • Your healthcare provider should show you how to use Zepbound before you use it for the first time.
  • Tell your healthcare provider if you are taking medicines to treat diabetes including insulin or sulfonylureas which could increase your risk of low blood sugar. Talk to your healthcare provider about low blood sugar levels and how to manage them.
  • If you take birth control pills by mouth, talk to your healthcare provider before you use Zepbound. Birth control pills may not work as well while using Zepbound. Your healthcare provider may recommend another type of birth control for 4 weeks after you start Zepbound and for 4 weeks after each increase in your dose of Zepbound.

Review these questions with your healthcare provider:

  • Do you have other medical conditions, including problems with your pancreas or kidneys, or severe problems with your stomach, such as slowed emptying of your stomach (gastroparesis) or problems digesting food?
  • Do you take diabetes medicines, such as insulin or sulfonylureas?
  • Do you have a history of diabetic retinopathy?
  • Do you take any other prescription medicines or over-the-counter drugs, vitamins, or herbal supplements?
  • Are you pregnant, plan to become pregnant, breastfeeding, or plan to breastfeed? Zepbound may harm your unborn baby. Tell your healthcare provider if you become pregnant while using Zepbound. It is not known if Zepbound passes into your breast milk. You should talk with your healthcare provider about the best way to feed your baby while using Zepbound.
  • Pregnancy Exposure Registry: There will be a pregnancy exposure registry for women who have taken Zepbound during pregnancy. The purpose of this registry is to collect information about the health of you and your baby. Talk to your healthcare provider about how you can take part in this registry, or you may contact Lilly at 1-800-LillyRx (1-800-545-5979).

How to take

  • Read the Instructions for Use that come with Zepbound.
  • Use Zepbound exactly as your healthcare provider says.
  • Zepbound is injected under the skin (subcutaneously) of your stomach (abdomen), thigh, or upper arm.
  • Use Zepbound 1 time each week, at any time of the day.
  • Change (rotate) your injection site with each weekly injection. Do not use the same site for each injection.
  • If you take too much Zepbound, call your healthcare provider, seek medical advice promptly, or contact a Poison Center expert right away at 1-800-222-1222.

Learn more

Zepbound is a prescription medicine. For more information, call 1-800-LillyRx (1-800-545-5979) or go to www.zepbound.lilly.com.

This summary provides basic information about Zepbound but does not include all information known about this medicine. Read the information that comes with your prescription each time your prescription is filled. This information does not take the place of talking with your healthcare provider. Be sure to talk to your healthcare provider about Zepbound and how to take it. Your healthcare provider is the best person to help you decide if Zepbound is right for you.

ZP CON CBS 08NOV2023

Zepbound® and its delivery device base are registered trademarks owned or licensed by Eli Lilly and Company, its subsidiaries, or affliates.