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Tirzépatide

L'injection la plus récente, qui agit sur deux récepteurs d'hormones intestinales au lieu d'un, vendue sous le nom de Zepbound pour le poids et Mounjaro pour le diabète.

Classe
Agoniste des récepteurs GIP et GLP-1
Vendu sous le nom de
Vendu sous le nom de: Zepbound, Mounjaro
Sur ordonnance

Mise en garde encadrée

WARNING: RISK OF THYROID C-CELL TUMORS

  • In rats, tirzepatide causes dose-dependent and treatment-duration-dependent thyroid C-cell tumors at clinically relevant exposures. It is unknown whether ZEPBOUND causes thyroid C-cell tumors, including medullary thyroid carcinoma (MTC), in humans as human relevance of tirzepatide-induced rodent thyroid C-cell tumors has not been determined. ZEPBOUND is contraindicated in patients with a personal or family history of MTC or in patients with Multiple Endocrine Neoplasia syndrome type 2 (MEN 2). Counsel patients regarding the potential risk for MTC with the use of ZEPBOUND and inform them of symptoms of thyroid tumors (e.g., a mass in the neck, dysphagia, dyspnea, persistent hoarseness).

D'après la notice approuvée

Zepbound

Usages autorisés
  • ZEPBOUND is a glucose-dependent insulinotropic polypeptide (GIP) receptor and glucagon-like peptide-1 (GLP-1) receptor agonist indicated in combination with a reduced-calorie diet and increased physical activity: to reduce excess body weight and maintain weight reduction long term in adults with obesity or adults with overweight in the presence of at least one weight-related comorbid condition.
  • to treat moderate to severe obstructive sleep apnea (OSA) in adults with obesity.
  • Limitations of Use: Coadministration with other tirzepatide-containing products or with any GLP-1 receptor agonist is not recommended.
Formes et dosages
  • Injection: Clear, colorless to slightly yellow solution in pre-filled single-dose pens, single-dose vials, multi-dose vials, or single-patient-use KwikPens, each available in the following strengths.
  • The multi-dose vials and single-patient-use KwikPen each contain 4 doses: Single-dose Pen or Vial 2.5 mg/0.5 mL 5 mg/0.5 mL 7.5 mg/0.5 mL 10 mg/0.5 mL 12.5 mg/0.5 mL 15 mg/0.5 mL Multi-dose Vial (4...
Comment il se prend
  • Recommended Dose Escalation Schedule The recommended starting dosage is 2.5 mg injected subcutaneously once weekly for 4 weeks. Increase the dosage in 2.5 mg increments after at least 4 weeks until recommended maintenance dosage is achieved.
  • Consider treatment response and tolerability when selecting the maintenance dosage.
  • Recommended Maintenance and Maximum Dosage Weight Reduction and Long-Term Maintenance: 5 mg, 10 mg, or 15 mg injected subcutaneously once weekly.
  • Obstructive Sleep Apnea: 10 mg or 15 mg injected subcutaneously once weekly.
  • Maximum Recommended Dosage: 15 mg injected subcutaneously once weekly.
  • Administration Instructions Refer to the Full Prescribing Information for additional important administration instructions about ZEPBOUND presentations.
Ne doit pas être utilisé en cas de
  • ZEPBOUND is contraindicated in patients with: A personal or family history of MTC or in patients with MEN 2.
  • Known serious hypersensitivity to tirzepatide or any of the excipients in ZEPBOUND.
  • Serious hypersensitivity reactions, including anaphylaxis and angioedema, have been reported with tirzepatide.
  • Personal or family history of medullary thyroid carcinoma or in patients with Multiple Endocrine Neoplasia syndrome type 2 Known serious hypersensitivity to tirzepatide or any of the excipients in ZEPBOUND
Interactions
  • ZEPBOUND delays gastric emptying and has the potential to impact the absorption of concomitantly administered oral medications.
Mises en garde et précautions
  • Severe Gastrointestinal Adverse Reactions: Use has been associated with gastrointestinal adverse reactions, sometimes severe. ZEPBOUND is not recommended in patients with severe gastroparesis.
  • Acute Kidney Injury Due to Volume Depletion: Monitor renal function in patients reporting adverse reactions that could lead to volume depletion.
  • Acute Gallbladder Disease: Has been reported in clinical trials. If cholecystitis is suspected, gallbladder studies and clinical follow-up are indicated.
  • Acute Pancreatitis: Has been observed in patients treated with GLP-1 receptor agonists, or ZEPBOUND. Discontinue if pancreatitis is suspected.
  • Hypersensitivity Reactions: Serious hypersensitivity reactions (e.g., anaphylaxis, angioedema) have been reported postmarketing with tirzepatide. If suspected, advise patients to promptly seek medical attention and discontinue ZEPBOUND.
  • Hypoglycemia: Concomitant use with insulin or an insulin secretagogue may increase the risk of hypoglycemia, including severe hypoglycemia. Reducing dose of insulin or insulin secretagogue may be necessary. Inform all patients of the risk of hypoglycemia and educate them on the signs and symptoms of hypoglycemia.
  • Diabetic Retinopathy Complications in Patients with Type 2 Diabetes Mellitus: Has not been studied in patients with non-proliferative diabetic retinopathy requiring acute therapy, proliferative diabetic retinopathy, or diabetic macular edema. Monitor patients with a history of diabetic retinopathy for progression.
  • Pulmonary Aspiration During General Anesthesia or Deep Sedation: Has been reported in patients receiving GLP-1 receptor agonists undergoing elective surgeries or procedures. Instruct patients to inform healthcare providers of any planned surgeries or procedures.
Effets indésirables fréquents
  • most common adverse reactions, reported in ≥5% of patients treated with ZEPBOUND are: nausea, diarrhea, vomiting, constipation, abdominal pain, dyspepsia, injection site reactions, fatigue, hypersensitivity reactions, eructation, hair loss, gastroesophageal reflux disease.
Grossesse
Pregnancy Exposure Registry There will be a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to ZEPBOUND (tirzepatide) during pregnancy. Pregnant patients exposed to ZEPBOUND and healthcare providers are encouraged to contact Eli Lilly and Company at 1-800-LillyRx (1-800-545-5979). Risk Summary Weight loss offers no benefit to a pregnant patient and may cause fetal harm.
Mécanisme d'action
Tirzepatide is a GIP receptor and GLP-1 receptor agonist. It contains a C20 fatty diacid that enables albumin binding and prolongs the half-life. Tirzepatide selectively binds to and activates both the GIP and GLP-1 receptors, the targets for native GIP and GLP-1.
Titulaire de l'autorisation:
Eli Lilly and Company
Version de la notice:

Les sections ci-dessus sont citées de la notice en anglais, car c'est ce document qui porte l'autorisation. Lorsqu'une autorité européenne publie les mêmes informations en français, le lien figure dans les sources. Nous ne traduisons pas nous-mêmes les textes réglementaires : une erreur de traduction dans une contre-indication serait plus dangereuse qu'une ligne en langue étrangère.

Cette section rapporte les informations produit approuvées. Le texte est condensé à partir du résumé de l'autorité elle-même, et le document complet figure dans les sources.

Écrit par nous

Comment il agit

Le tirzépatide agit sur le récepteur ciblé par le sémaglutide et sur un second également. Ce sont deux récepteurs d'hormones que l'intestin libère à l'arrivée des aliments, et l'effet pratique est de même nature : vidange gastrique ralentie, satiété plus précoce, appétit diminué. Savoir si agir sur deux récepteurs plutôt qu'un donne un résultat différent est une question à laquelle les notices ne répondent pas, et cette page non plus.

Princeps et générique

Aucun générique n'existe et aucun ne le pourra avant l'expiration des brevets. En Europe, la marque Mounjaro porte, sous une autorisation européenne unique, l'indication diabète et l'indication poids : une différence avec les États-Unis à connaître quand on lit des sources américaines.

Ce qu'il coûte

Tarif mensuel comparable à celui du sémaglutide, avec le même tableau côté remboursement : pris en charge sous conditions dans certains pays, entièrement privé dans d'autres.

Comment l'obtenir légalement

Sur ordonnance, en injection hebdomadaire. En Europe, une clinique en ligne peut légitimement le prescrire, et la consultation devrait reposer sur des chiffres réels et non sur une case cochée : la notice indique les seuils d'indice de masse corporelle qui rendent la prescription appropriée.

D'après la notice approuvée

Mounjaro: autorisé pour

Usages autorisés
  • MOUNJARO ® is a glucose-dependent insulinotropic polypeptide (GIP) receptor and glucagon-like peptide-1 (GLP-1) receptor agonist indicated as an adjunct to diet and exercise to improve glycemic control in adults and pediatric patients 10 years of age and older with type 2 diabetes mellitus.
Formes et dosages
  • Injection: Clear, colorless to slightly yellow solution in pre-filled single-dose pens, single-dose vials, multi-dose vials, or single-patient-use KwikPens, each available in the following strengths.
  • The multi-dose vials and single-patient-use KwikPen each contain 4 doses: Single-dose Pen or Vial 2.5 mg/0.5 mL 5 mg/0.5 mL 7.5 mg/0.5 mL 10 mg/0.5 mL 12.5 mg/0.5 mL 15 mg/0.5 mL Multi-dose Vial (4...
Comment il se prend
  • The recommended starting dosage is 2.5 mg injected subcutaneously once weekly.
  • After 4 weeks, increase to 5 mg injected subcutaneously once weekly.
  • If additional glycemic control is needed, increase the dosage in 2.5 mg increments after at least 4 weeks on the current dose.
  • Maximum dosage: Adults: 15 mg subcutaneously once weekly. Pediatric patients 10 years of age and older: 10 mg subcutaneously once weekly. Administer once weekly at any time of day, with or without meals.
  • Inject subcutaneously in the abdomen, thigh, or another person should inject in the back of the upper arm. Rotate injection sites with each dose.
  • Refer to the Full Prescribing Information for additional important administration instructions about MOUNJARO presentations.
Ne doit pas être utilisé en cas de
  • MOUNJARO is contraindicated in patients with: A personal or family history of medullary thyroid carcinoma (MTC) or in patients with Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
  • Known serious hypersensitivity to tirzepatide or any of the excipients in MOUNJARO.
  • Serious hypersensitivity reactions, including anaphylaxis and angioedema, have been reported with MOUNJARO.
Interactions
  • MOUNJARO delays gastric emptying and has the potential to impact the absorption of concomitantly administered oral medications.
Mises en garde et précautions
  • Acute Pancreatitis: Has been observed in patients treated with GLP-1 receptor agonists, or MOUNJARO. Discontinue if pancreatitis is suspected.
  • Hypoglycemia with Concomitant Use of Insulin Secretagogues or Insulin: Concomitant use with an insulin secretagogue or insulin may increase the risk of hypoglycemia, including severe hypoglycemia. Reducing dose of insulin secretagogue or insulin may be necessary.
  • Hypersensitivity Reactions: Serious hypersensitivity reactions (e.g., anaphylaxis and angioedema) have been reported. Discontinue MOUNJARO if suspected and promptly seek medical advice.
  • Acute Kidney Injury Due to Volume Depletion: Monitor renal function in patients reporting adverse reactions that could lead to volume depletion.
  • Severe Gastrointestinal Adverse Reactions: Use has been associated with gastrointestinal adverse reactions, sometimes severe. MOUNJARO is not recommended in patients with severe gastroparesis.
  • Diabetic Retinopathy Complications in Patients with a History of Diabetic Retinopathy: Has not been studied in patients with non-proliferative diabetic retinopathy requiring acute therapy, proliferative diabetic retinopathy, or diabetic macular edema. Monitor patients with a history of diabetic retinopathy for progression.
  • Acute Gallbladder Disease: Has occurred in clinical trials. If cholelithiasis is suspected, gallbladder studies and clinical follow-up are indicated.
  • Pulmonary Aspiration During General Anesthesia or Deep Sedation: Has been reported in patients receiving GLP-1 receptor agonists undergoing elective surgeries or procedures. Instruct patients to inform healthcare providers of any planned surgeries or procedures.
Effets indésirables fréquents
  • most common adverse reactions, reported in ≥5% of patients treated with MOUNJARO are nausea, diarrhea, decreased appetite, vomiting, constipation, dyspepsia, and abdominal pain.
Grossesse
Available data with MOUNJARO use in pregnant women are insufficient to evaluate for a drug-related risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy (see Clinical Considerations). Based on animal reproduction studies, there may be risks to the fetus from exposure to tirzepatide during pregnancy.
Mécanisme d'action
Tirzepatide is a GIP receptor and GLP-1 receptor agonist. It contains a C20 fatty diacid that enables albumin binding and prolongs the half-life. Tirzepatide selectively binds to and activates both the GIP and GLP-1 receptors, the targets for native GIP and GLP-1.
Titulaire de l'autorisation:
Eli Lilly and Company
Version de la notice:

Les sections ci-dessus sont citées de la notice en anglais, car c'est ce document qui porte l'autorisation. Lorsqu'une autorité européenne publie les mêmes informations en français, le lien figure dans les sources. Nous ne traduisons pas nous-mêmes les textes réglementaires : une erreur de traduction dans une contre-indication serait plus dangereuse qu'une ligne en langue étrangère.

Cette section rapporte les informations produit approuvées. Le texte est condensé à partir du résumé de l'autorité elle-même, et le document complet figure dans les sources.

Comparatif

Voir aussi

  1. Mounjaro et Ozempic, comparés à partir des deux noticesTirzépatide et sémaglutide comparés d'après leurs notices FDA : indications autorisées, posologie, contre-indications et mises en garde encadrées, sans verdict qu'aucune notice ne soutient.

Questions

Le tirzépatide est-il meilleur que le sémaglutide ?
Aucune des deux notices n'avance de revendication comparative, et la position honnête est que cette comparaison relève d'un jugement clinique et non d'une page de référence.
Pourquoi l'Europe utilise-t-elle un seul nom pour les deux usages ?
Parce que l'autorisation européenne couvre les deux indications sous le nom de Mounjaro, alors que les États-Unis les ont autorisées séparément sous deux noms. La substance reste la même.
Sur quoi porte la mise en garde encadrée ?
Sur des tumeurs thyroïdiennes observées chez l'animal ; elle figure intégralement dans la partie notice ci-dessus. C'est aussi la raison pour laquelle les contre-indications citent certains antécédents familiaux.

Sources

  1. Zepbound, ZEPBOUND, Zepbound KwikPen: prescribing informationDailyMed, US National Library of Medicine. Version de la notice 22 avril 2026
  2. Mounjaro, Mounjaro KwikPen: prescribing informationDailyMed, US National Library of Medicine. Version de la notice 22 avril 2026
  3. Drugs@FDA: NDA217806US Food and Drug Administration
  4. Drugs@FDA: NDA215866US Food and Drug Administration
  5. Mounjaro: EPAR product informationEuropean Medicines Agency

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