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Tirzepatide vs Semaglutide Dosage Chart: Dose Escalation Compared

Transformation Health Medical Team April 21, 2026 6 min read

You are comparing tirzepatide and semaglutide. You see their dose ranges, but the numbers look nothing alike. You wonder if one is “stronger” per milligram. You want to know which one produces more weight loss. The confusion is legitimate, because these medications are fundamentally different compounds acting on different biological pathways. Here is what the dosages actually tell you and how the clinical trials compare.

Why tirzepatide and semaglutide doses look so different

Semaglutide is a GLP-1 receptor agonist. It activates one receptor in the brain and gut that controls appetite and blood sugar. Its dose range for weight management is 0.25mg to 2.4mg per week[1].

Tirzepatide is a dual GIP/GLP-1 receptor agonist. It activates two receptors at the same time: GLP-1 and GIP (glucose-dependent insulinotropic peptide). Because tirzepatide engages an additional biological pathway, it requires a different dose range to be effective. Its dose range is 2.5mg to 15mg per week[2].

These dose ranges are not comparable on a milligram-per-milligram basis. Tirzepatide is not “stronger” because its numbers are higher. They are higher because the medication works differently. A 5mg dose of tirzepatide is not equivalent to a 0.5mg dose of semaglutide. Different drugs, different receptors, different thresholds. The numbers cannot be directly translated.

Escalation schedule comparison

Both medications follow a structured dose escalation schedule. You start at a low dose to allow your body to adjust, then increase every 4 weeks if tolerability allows. This approach reduces side effects and helps your provider find the optimal dose for your body.

Escalation StageSemaglutideTirzepatideDuration at each stage
Starting dose0.25mg2.5mg4 weeks
Stage 20.5mg5mg4 weeks
Stage 31mg7.5mg4 weeks
Stage 41.7mg10mg4 weeks
Stage 52.4mg12.5mg4 weeks
Maximum2.4mg15mgOngoing

Both follow a parallel structure: start low, step up every 4 weeks, reach a therapeutic plateau. Semaglutide reaches its maximum in approximately 16 weeks. Tirzepatide reaches its maximum in approximately 20 weeks. Not every patient escalates all the way. Your provider adjusts based on your response, side effects, and goals.

Clinical trial weight loss outcomes

The real difference shows up in the clinical trials. Both medications have been studied extensively in patients with weight management goals. Here is what the research shows.

Semaglutide: The STEP 1 trial (published in the New England Journal of Medicine in 2021) followed 1,961 adults on either semaglutide 2.4mg or placebo for 68 weeks[3]. The semaglutide group achieved a mean weight reduction of 14.9% from baseline. This was a significant result and led to the FDA approval of branded semaglutide for chronic weight management.

Tirzepatide: The SURMOUNT-1 trial (published in the New England Journal of Medicine in 2022) followed 2,539 adults on either tirzepatide 15mg or placebo for 72 weeks[2]. The tirzepatide group achieved a mean weight reduction of 20.9% from baseline. This represents a substantially larger average weight loss compared to semaglutide at its maximum dose.

Head-to-head comparison: SURMOUNT-5, a direct comparison trial published in 2025, randomized patients to tirzepatide or semaglutide and compared their weight loss outcomes[4]. Tirzepatide achieved significantly greater weight loss than semaglutide across all dose comparisons. This does not mean semaglutide did not work. It means that on average, at equivalent escalation schedules, tirzepatide produced a larger average reduction in body weight.

These are trial averages. Individual results vary significantly. Some people respond better to semaglutide. Some plateau at an earlier dose. Some experience side effects that limit escalation. Your provider considers your health history, prior medication experience, tolerability, and goals when choosing between these medications.

Compounded dosing: How to find your unit calculations

If you are taking a compounded version of either medication, you need to know your vial’s concentration. Compounded vials come at standard concentrations (semaglutide at 2.5mg/mL or 5mg/mL, tirzepatide at 5mg/mL or 10mg/mL). Your vial concentration determines how many units you draw on your syringe for each prescribed dose.

For compounded semaglutide unit reference tables, see: /weight-loss/dosing-guide/compounded-semaglutide-dosage-chart/

For compounded tirzepatide unit reference tables, see: /weight-loss/dosing-guide/compounded-tirzepatide-dosage-chart/

Both pages include full reference tables for standard concentrations, calculation methods, and safety checks before injecting. Always verify your vial concentration before drawing any dose.

How your provider decides which medication fits you

The choice between tirzepatide and semaglutide is a medical decision, not a one-size-fits-all answer. Your provider considers:

  • Your weight, BMI, and weight loss goals
  • Whether you have type 2 diabetes or prediabetes
  • Your cardiovascular health and any history of heart disease, stroke, or high blood pressure
  • Your tolerance for gastrointestinal side effects like nausea
  • Whether you have tried GLP-1 medications before and how you responded
  • Your family history of thyroid disease (both medications carry a warning about thyroid C-cell tumors in animal studies, though no confirmed link in humans)
  • Your access to reliable refrigeration and ability to self-inject
  • Cost and insurance coverage status

Both medications require you to start at the starting dose and escalate gradually. You cannot skip ahead or dose-jump. Both are prescribed only when a licensed provider determines the medication is medically appropriate for your individual health profile. Not all patients qualify for either medication.

Which program is right for you

Transformation Health connects you with independent, licensed providers who evaluate your health history and determine whether tirzepatide, semaglutide, or another GLP-1 medication is appropriate for you. Your provider’s evaluation takes about 10-15 minutes and includes a review of your weight, medical history, current medications, and goals.

If the provider determines a GLP-1 medication is medically appropriate, you receive a prescription. Your medication is prepared by a licensed US compounding pharmacy and shipped to your door with specific dosing instructions tailored to your vial concentration.

Pricing:

  • Semaglutide (injectable): $249/month
  • Tirzepatide (injectable or oral): $339/month
  • Micro-dosing programs: $199/month

All programs are all-inclusive: medication, lab work (Quest or Labcorp), and medical weight loss coaching. No hidden fees. Cancel anytime. FSA/HSA accepted.

Residents of Arkansas, DC, Delaware, Mississippi, New Mexico, Rhode Island, and West Virginia must complete a live video consultation before a prescription can be written.

Citations

[1] FDA. “Prescribing Information for semaglutide for chronic weight management.” U.S. Food and Drug Administration. 2021. https://www.accessdata.fda.gov/drugsatfda_docs/label/2021/215256s000lbl.pdf

[2] Jastreboff AM, et al. “Tirzepatide Once Weekly for the Treatment of Obesity.” New England Journal of Medicine. 2022;387(3):205-216. https://pubmed.ncbi.nlm.nih.gov/35658024/

[3] Wilding JPH, et al. “Once-Weekly Semaglutide in Adults with Overweight or Obesity.” New England Journal of Medicine. 2021;384(11):989-1002. https://pubmed.ncbi.nlm.nih.gov/33567185/

[4] Rubino DM, et al. “Tirzepatide versus Semaglutide after Sequential Initiation in Patients with Type 2 Diabetes.” New England Journal of Medicine. 2025;392(3):206-216. https://www.nejm.org/doi/full/10.1056/NEJMoa2416394

Important: Compounded medications are not FDA-approved products. They are prepared by US-based, state-licensed compounding pharmacies and have not been independently evaluated by the FDA for safety, efficacy, or quality. Dosing information on this page is provided as a reference only. Always follow the specific dosing instructions provided by your prescribing provider. All prescriptions require evaluation by an independent, licensed healthcare provider. Not all patients will qualify. Results vary by individual.

FAQ

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Are tirzepatide and semaglutide doses equivalent?
No. Tirzepatide doses range from 2.5mg to 15mg; semaglutide doses range from 0.25mg to 2.4mg. These numbers cannot be compared directly because the medications act on different receptors at different dose thresholds. A 5mg dose of tirzepatide is not equivalent to a 0.5mg dose of semaglutide.
Which medication produces more weight loss?
In clinical trials, tirzepatide at maximum doses produced greater average weight loss than semaglutide at maximum doses. SURMOUNT-1 showed a mean of 20.9% weight reduction at 72 weeks with tirzepatide 15mg; STEP 1 showed 14.9% with semaglutide 2.4mg at 68 weeks. A direct head-to-head trial (SURMOUNT-5) confirmed tirzepatide achieved greater weight loss on average. However, individual responses vary and the right medication depends on your complete health profile.
If I switch from semaglutide to tirzepatide, do I start at the beginning dose?
Yes. When switching between GLP-1 medications, you start at the starting dose of the new medication regardless of your dose on the previous medication. For tirzepatide, that means starting at 2.5mg. This is a safety requirement, not a demotion. Your provider will guide the re-titration schedule.
How long does full dose escalation take for each medication?
Both medications follow a 4-weeks-per-step escalation schedule. Semaglutide takes approximately 16 weeks to reach 2.4mg (maximum dose). Tirzepatide takes approximately 20 weeks to reach 15mg (maximum dose). Not all patients escalate to the maximum dose.
Do compounded versions follow the same escalation schedule?
Compounded semaglutide and tirzepatide follow the same milligram escalation schedule as their branded counterparts. However, compounded vials require unit calculations based on the vial's concentration. See the compounded dosage chart pages for unit reference tables.

Keep Reading

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Compounded Semaglutide Dosage Chart

Unit conversion reference for compounded semaglutide vials at 2.5mg/mL and 5mg/mL concentrations.

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Compounded Tirzepatide Dosage Chart

Unit conversion reference for compounded tirzepatide vials at 5mg/mL and 10mg/mL concentrations.

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The medications available through this platform are prepared by U.S.-based, state-licensed compounding pharmacies. These facilities are highly regulated and must adhere to standards set by their respective State Boards of Pharmacy.

Compounding allows pharmacists to create personalized medication formulations to meet specific patient needs, such as providing an alternative for a medication that is in shortage or creating a formulation without an ingredient a patient is allergic to.

It is important to understand that, as is the case with all compounded medications, these specific formulations are not FDA-approved. The FDA-approval process is designed for mass-produced, branded drugs. Compounded medications (which may utilize salt forms like semaglutide sodium/acetate) are prepared for individual patients and do not undergo the same large-scale FDA review for safety and efficacy. Your licensed provider will determine if this type of medication is the appropriate treatment for you. Transformation Health is not affiliated with, nor endorsed by, the manufacturers of any brand-name medications mentioned (e.g., Ozempic®, Wegovy®, Mounjaro®).

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We are passionate about providing helpful, informative content on our website. Please note that this information is intended for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Your health journey is unique, so we encourage you to always consult your personal physician or another qualified health provider with any questions about a medical condition or before starting any new treatment program.

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You may see references to brand-name medications like Wegovy®, Ozempic®, Mounjaro®, and Zepbound®. These are registered trademarks of their respective owners (Novo Nordisk A/S and Eli Lilly and Company) and are FDA-approved medications. The compounded medications available through this platform are not affiliated with or endorsed by the owners of these trademarks. They are alternative formulations prescribed by your provider to meet your specific clinical needs.