Tirzepatide vs. Semaglutide. Comparing two popular weight loss medications side by side.

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Tirzepatide Semaglutide
What are they? Active ingredient found in the brand-name medications Mounjaro™ and Zepbound™ Active ingredient found in the brand-name medications Ozempic® and Wegovy®
Creators Eli Lilly and Company. Headquarters located in Indianapolis, Indiana, U.S.A. Novo Nordisk A/S. Headquarters located in Bagsvaerd, Denmark.
Brand names Mounjaro™ Zepbound™ Ozempic® Wegovy®
Drug class Glucose-dependent insulinotropic polypeptide (GIP) receptor and glucagon-like peptide-1 (GLP-1) receptor agonists. Glucagon-like peptide-1 (GLP-1) receptor agonist.
Conditions for which they are prescribed For diabetes under brand name Mounjaro™. For weight loss under brand name Zepbound™ For diabetes under brand name Ozempic®. For weight loss under brand name Wegovy®
Mechanism of Action Activates 2 receptors, glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1); leading to increased insulin secretion, delayed gastric emptying and increased insulin sensitivity. Activates glucagon-like-peptide-1 (GLP-1) receptors in the brain, regulating appetite and caloric intake.
Doses 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg and 15 mg per injection 0.25 mg, 0.5 mg, 1 mg, 1.7 mg and 2.4 mg per injection
Regulations (FDA/DEA) Requires prescription. Not a controlled substance. Requires prescription. Not a controlled substance.
FDA approval year Mounjaro™ May 2022. Zepbound™ Nov 2023 Ozempic® 2017. Wegovy® 2021
Who is a good candidate for medication? Adults with a BMI of 30 or more (obesity category). Adults with a BMI of 27-29 (overweight category), who also have at least one weight-related comorbid condition such as hypertension, diabetes type 2, or hyperlipidemia. Adults with a BMI of 30 or more (obesity category). Adults with a BMI of 27-29 (overweight category), who also have at least one weight-related comorbid condition such as hypertension, diabetes type 2, or hyperlipidemia. Pediatrics, 12 years and older with a BMI in the 95th percentile or greater.
How often should it be injected? Once weekly, at any time of the day. Once weekly, at any time of the day.
Method of administration Subcutaneous injection Subcutaneous injection
Average weight loss At 15 mg (max dose), patients lose about 20.9% of their body weight. With 1 in 3 losing up to 26.6%. At 2.4 mg (max dose), patients lose about 15% of their body weight. With 1 in 4 losing up to 20%.
Common side effects nausea, vomiting, diarrhea, constipation, abdominal pain, heartburn, other possible side effects not listed here. nausea, vomiting, diarrhea, constipation, abdominal pain, heartburn, other possible side effects not listed here.
Contraindications Personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 (MENS2) or in case of hypersensitivity to drug. Personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 (MENS2) or in case of hypersensitivity to drug.
Price of brand name Approximately $1057.00 for 1 carton of 4 prefilled pens (1 month supply). Zepbound™ approved by FDA on November 2023, drug not yet available for prescribing; anticipated availability December 2023. Approximately $1,386.00 for 1 carton of 4 prefilled pens (1 month supply).
Price with us $499.00 for Compounded Tirzepatide. Includes consultation and shipping. $299.00 for Compounded Semaglutide. Includes consultation and shipping.
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