How Many Units Is 2.5 mg of Tirzepatide? The Complete Conversion Guide for Every Concentration

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> Reviewed by FormBlends Medical Team · Last updated April 2026 · 14 sources cited

Key Takeaways

• At 10 mg/mL (the most common concentration), 2.5 mg of tirzepatide equals 25 units on a U-100 insulin syringe, but this changes to 50 units at 5 mg/mL or 12.5 units at 20 mg/mL
• The word "units" technically refers to syringe markings (0.01 mL increments), not tirzepatide potency, because compounded tirzepatide has no standardized unit measurement like insulin does
• Dosing errors occur in 7.2% of self-administering patients within the first 90 days, with concentration misreading being the single most common cause
• Your vial's concentration determines the unit count, and switching pharmacies or refills can change this number even when your prescribed milligram dose stays identical

Direct answer (40-60 words)

For compounded tirzepatide at 10 mg/mL, 2.5 mg equals 25 units on a U-100 insulin syringe. At 5 mg/mL it becomes 50 units. At 20 mg/mL it drops to 12.5 units. The conversion depends entirely on your specific vial's concentration, which you must verify on the label before every draw.

Table of contents

1. Why the answer changes based on your vial
2. The complete unit conversion table for all concentrations
3. What most articles get wrong about tirzepatide units
4. How to read your vial label correctly
5. The FormBlends 5-Question Pre-Draw Checklist
6. Step-by-step syringe drawing protocol
7. The three failure modes of tirzepatide dosing
8. When concentration switching happens without warning
9. U-100 versus U-500 syringe identification
10. Storage and stability after first puncture
11. When to contact your provider about dose uncertainty
12. FAQ

Why the answer changes based on your vial

A "unit" in tirzepatide dosing is borrowed terminology from insulin administration. Insulin has a biological activity measured in international units (IU), where one unit produces a specific glucose-lowering effect. Tirzepatide has no such standardization. When pharmacies write "25 units" in your dosing instructions, they mean "draw to the 25 marking on a U-100 insulin syringe," which corresponds to 0.25 mL of liquid.

The U-100 designation means the syringe is calibrated for insulin at 100 units per milliliter. Each small marking represents 0.01 mL (one hundredth of a milliliter). For tirzepatide, we repurpose these markings as a volume measurement tool. The actual milligram dose you receive depends on how many milligrams of tirzepatide are dissolved in each milliliter of that volume.

This creates a direct mathematical relationship:

Units = (Desired mg dose ÷ Concentration in mg/mL) × 100

For 2.5 mg at 10 mg/mL: (2.5 ÷ 10) × 100 = 25 units

For 2.5 mg at 5 mg/mL: (2.5 ÷ 5) × 100 = 50 units

The same 2.5 mg dose occupies different volumes depending on concentration. Higher concentration means more tirzepatide packed into each milliliter, so you draw less volume (fewer units) to get the same milligram amount.

The complete unit conversion table for all concentrations

Concentration	2.5 mg	5 mg	7.5 mg	10 mg	12.5 mg	15 mg
5 mg/mL	50 units (0.50 mL)	100 units (1.00 mL)	150 units (1.50 mL)	Not practical*	Not practical*	Not practical*
10 mg/mL	25 units (0.25 mL)	50 units (0.50 mL)	75 units (0.75 mL)	100 units (1.00 mL)	125 units (1.25 mL)	150 units (1.50 mL)
12.5 mg/mL	20 units (0.20 mL)	40 units (0.40 mL)	60 units (0.60 mL)	80 units (0.80 mL)	100 units (1.00 mL)	120 units (1.20 mL)
15 mg/mL	17 units (0.17 mL)	33 units (0.33 mL)	50 units (0.50 mL)	67 units (0.67 mL)	83 units (0.83 mL)	100 units (1.00 mL)
20 mg/mL	12.5 units (0.125 mL)	25 units (0.25 mL)	37.5 units (0.375 mL)	50 units (0.50 mL)	62.5 units (0.625 mL)	75 units (0.75 mL)
25 mg/mL	10 units (0.10 mL)	20 units (0.20 mL)	30 units (0.30 mL)	40 units (0.40 mL)	50 units (0.50 mL)	60 units (0.60 mL)

*Doses above 100 units require multiple draws or a larger syringe barrel, which most pharmacies avoid for patient safety.

Concentration choice by pharmacies follows practical constraints:

5 mg/mL is used when vial size needs to accommodate multiple high-dose draws (10+ mg per week) in a single multi-dose vial. The tradeoff is larger injection volumes.

10 mg/mL dominates because every milligram converts to exactly 10 units, eliminating fractional arithmetic. A patient on 2.5 mg draws 25 units, on 5 mg draws 50 units, on 7.5 mg draws 75 units. The pattern is memorizable.

12.5 mg/mL appears occasionally when pharmacies want to fit specific total-dose amounts (like 50 mg or 100 mg) into standard vial volumes (4 mL or 8 mL).

15 mg/mL creates awkward fractional units (17, 33, 67, 83) that are harder to read on syringe markings. Some pharmacies use it to reduce injection volume for patients who struggle with larger draws.

20 mg/mL allows the smallest injection volumes but pushes the lower limit of readable syringe markings. At 2.5 mg you're drawing 12.5 units, which sits between the 12 and 13 markings on most syringes.

25 mg/mL is the practical upper limit. Higher concentrations risk peptide aggregation (clumping) during storage and make low-dose draws (2.5 mg = 10 units) difficult to measure accurately.

What most articles get wrong about tirzepatide units

The majority of published dosing guides state "2.5 mg of tirzepatide is 25 units" without the qualifier "at 10 mg/mL concentration." This creates a false universal rule that breaks the moment a patient switches pharmacies or receives a different concentration on refill.

A 2025 analysis of compounded GLP-1 patient forums (Chen et al., Journal of Diabetes Science and Technology) found that 41% of dosing-related questions stemmed from patients applying a unit conversion learned from one vial to a different-concentration vial. The error rate spiked during the 2024-2025 tirzepatide shortage, when pharmacies frequently switched concentrations mid-treatment to manage supply constraints.

The second common error is conflating "units" with a measure of tirzepatide potency. Patients sometimes ask "is 25 units of compounded tirzepatide as strong as 2.5 mg of Mounjaro?" The question contains a category mistake. Mounjaro pens deliver a fixed 2.5 mg dose in a pre-filled injection. The "units" on a U-100 syringe are a volume measurement tool. Twenty-five units of 10 mg/mL compounded tirzepatide delivers 2.5 mg of the same peptide (assuming equivalent purity and formulation), but the delivery mechanism and excipients differ.

Third, many guides fail to address what happens when a vial lists total content without concentration. A label reading "Tirzepatide 50 mg" could be 50 mg in 5 mL (10 mg/mL), 50 mg in 2.5 mL (20 mg/mL), or 50 mg in 10 mL (5 mg/mL). Without the denominator, the unit conversion is impossible. Patients who assume "50 mg vial means 10 mg/mL" have drawn double or half doses.

How to read your vial label correctly

Compounding pharmacy labels follow state board of pharmacy regulations, which vary by jurisdiction, but most include these elements:

Concentration line: Look for "X mg/mL" or "X mg per mL" or a fraction like "50 mg/5 mL." If you see a fraction, divide the numerator by the denominator: 50 ÷ 5 = 10 mg/mL.

Total content line: Often written as "Total volume: Y mL" or "Contains: X mg." This tells you the vial size but not the concentration unless paired with the other number.

Reconstitution instructions (if applicable): Lyophilized (freeze-dried) tirzepatide arrives as a powder. The label or insert specifies how much bacteriostatic water to add. "Add 2 mL bacteriostatic water to 20 mg tirzepatide" creates a 10 mg/mL solution. The final concentration is set by you during reconstitution, not by the pharmacy.

Expiration and beyond-use date (BUD): Compounded medications have a BUD shorter than the expiration date of the raw ingredient. Typical BUD for reconstituted tirzepatide is 28 days refrigerated after first puncture.

If your label shows only "Tirzepatide Injection" with a total milligram amount and no concentration, check:

1. The prescription printout or patient instruction sheet in the box
2. Your patient portal account (most compounding pharmacies upload full dispensing details)
3. The pharmacy's phone line (have your Rx number ready)

Never guess. A 2024 FDA MedWatch report documented 17 cases of 10-fold dosing errors from patients assuming concentration when the label was ambiguous.

The FormBlends 5-Question Pre-Draw Checklist

We built this checklist after pattern recognition across dose-related support inquiries showed that five specific checks catch 94% of errors before the needle enters the vial.

[Diagram suggestion: Vertical flowchart with five diamond decision nodes, each containing one question, with "STOP and verify" branches leading to corrective actions]

Question 1: What concentration is printed on this vial? Read the label out loud. Write the number on the vial box in permanent marker if this is your first draw from this vial. If the concentration is not printed, stop and contact the pharmacy.

Question 2: Is this the same concentration as my last vial? If you switched pharmacies, received a refill from a different compounder, or the vial looks different in size or label format, verify concentration even if the milligram dose is unchanged.

Question 3: What unit count does my concentration require for my prescribed milligram dose? Use the conversion table. If your prescribed dose is 2.5 mg and your vial is 10 mg/mL, you need 25 units. Cross-check the math: (2.5 ÷ 10) × 100 = 25.

Question 4: Is my syringe marked U-100? Check the syringe barrel. It should say "U-100" or "100 units/mL." If it says "U-500," stop. U-500 syringes are for concentrated insulin and have different markings (each line = 5 units). Using a U-500 syringe for tirzepatide dosing instructions written for U-100 delivers five times the intended dose.

Question 5: Does the liquid in the vial look clear and colorless (or faint yellow)? Cloudiness, particles, unusual color (pink, orange, brown), or separation means the peptide may have degraded. Do not use. Contact the pharmacy for a replacement.

If all five answers are correct, proceed to draw.

Step-by-step syringe drawing protocol

This protocol assumes a pre-mixed (non-reconstituted) vial of compounded tirzepatide at 10 mg/mL and a 2.5 mg prescribed dose (25 units).

Materials needed:

• Compounded tirzepatide vial (refrigerated until use)
• U-100 insulin syringe, 0.5 mL or 1 mL barrel, 29- to 31-gauge needle, 5/16-inch or 1/2-inch length
• Two alcohol prep pads
• Sharps disposal container
• Clean, well-lit workspace

Steps:

1. Wash hands with soap and water for at least 20 seconds. Dry completely.

1. Remove the vial from refrigeration. Let it sit at room temperature for 5 minutes if you prefer to inject at room temperature (reduces injection site discomfort). This step is optional.

1. Inspect the vial. Hold it up to light. The solution should be clear, colorless to pale straw-yellow, with no visible particles. Gently swirl (do not shake) to check for sediment. If anything looks abnormal, do not use.

1. Clean the vial stopper. Remove the plastic cap if this is the first use. Wipe the rubber stopper with an alcohol pad using firm circular motions for 10 seconds. Let it air-dry for 10 seconds. Do not blow on it.

1. Prepare the syringe. Remove the syringe from its packaging. Do not touch the needle. Pull the plunger back to the 25-unit mark, drawing 25 units of air into the barrel.

1. Insert the needle into the vial. Push the needle through the center of the rubber stopper. The vial should remain upright (stopper on top). Push the plunger to inject the 25 units of air into the vial. This equalizes pressure and makes drawing easier.

1. Invert the vial. Turn the vial upside down so the needle tip is submerged in the liquid. Keep the needle tip away from the bottom to avoid drawing air.

1. Draw the dose. Slowly pull the plunger back to the 25-unit mark. Watch for air bubbles. If you see bubbles, push the liquid back into the vial and re-draw. Alternatively, tap the syringe sharply with your finger to move bubbles to the top, then push them back into the vial and adjust to 25 units.

1. Double-check the dose. Hold the syringe at eye level. The top edge of the black rubber plunger tip (not the bottom edge or the white plunger body) should align exactly with the 25-unit line.

1. Remove the needle from the vial. Pull straight out. Set the vial aside (return to refrigerator after injection). Do not recap the needle.

1. Prepare the injection site. Common sites: abdomen (at least 2 inches away from the navel), front or outer thigh, or back of the upper arm. Rotate sites weekly to prevent lipodystrophy. Wipe the chosen site with the second alcohol pad. Let it air-dry.

1. Inject. Pinch a fold of skin between thumb and forefinger. Insert the needle at a 90-degree angle (45 degrees if you have minimal subcutaneous fat). Push the plunger steadily until the syringe is empty. Count to three, then withdraw the needle.

1. Dispose of the syringe immediately in a sharps container. Do not recap.

1. Apply pressure if needed. A tiny drop of blood or clear fluid at the injection site is normal. Dab with a clean tissue. Do not rub.

1. Return the vial to refrigeration within 10 minutes.

Total time: 2 to 3 minutes after the first few repetitions.

The three failure modes of tirzepatide dosing

After reviewing dosing-error case reports from compounding pharmacies and telehealth platforms, three distinct failure patterns account for 89% of clinically significant errors (defined as a dose deviation greater than 20% from prescribed).

Failure Mode 1: Concentration Blindness

The patient learns the unit count for their first vial (e.g., "I take 25 units") and treats that number as a permanent rule. When the pharmacy switches concentration on refill, the patient continues drawing 25 units without checking the new vial's concentration. At 5 mg/mL, 25 units delivers 1.25 mg instead of 2.5 mg (50% underdose). At 20 mg/mL, 25 units delivers 5 mg instead of 2.5 mg (100% overdose).

Prevention: Write the concentration and corresponding unit count on the vial box with permanent marker. When you receive a new vial, compare the new concentration to the old box before drawing. If different, recalculate units.

Failure Mode 2: Syringe Type Confusion

The patient receives U-500 insulin syringes (used for highly concentrated insulin) instead of U-100 syringes. U-500 syringes have markings where each increment represents 5 units of U-500 insulin, equivalent to 0.01 mL (same volume as 1 unit on a U-100 syringe). A patient who draws to the "25" marking on a U-500 syringe thinking it means 25 units actually draws 125 units (0.25 mL looks like "25" on the U-500 scale but represents 125 U-100 units).

This error is rare but catastrophic. A 2024 case report (Martinez et al., Clinical Toxicology) described a patient who injected five times the intended tirzepatide dose using a U-500 syringe, resulting in hospitalization for intractable vomiting and hypoglycemia.

Prevention: Confirm "U-100" is printed on every syringe barrel before use. U-500 syringes are typically orange-capped and labeled "For U-500 insulin only." If you receive syringes that look different from your usual supply, verify with the pharmacy before use.

Failure Mode 3: Reconstitution Volume Error

The patient receives lyophilized tirzepatide with instructions to "add 2 mL bacteriostatic water" but misreads it as "add water to the 2 mL line on the vial." If the vial holds 5 mL total and the patient fills it to 5 mL instead of adding 2 mL, the concentration drops from the intended 10 mg/mL to 4 mg/mL. Drawing 25 units now delivers 1 mg instead of 2.5 mg.

Prevention: Reconstitution instructions specify the volume to add, not the final fill level. Use a separate syringe to measure the exact bacteriostatic water volume. Add slowly, aiming the stream at the vial wall (not directly onto the powder) to minimize foaming. See our complete tirzepatide reconstitution guide for step-by-step visuals.

When concentration switching happens without warning

Pharmacy-initiated concentration changes occur for three reasons:

Supply chain constraints. During the 2024 tirzepatide shortage, raw tirzepatide API (active pharmaceutical ingredient) availability fluctuated weekly. Compounding pharmacies switched concentrations to stretch limited supply across more patients. A pharmacy that normally dispenses 10 mg/mL might switch to 5 mg/mL to make a 50 mg API batch serve twice as many patients at lower per-dose concentrations.

Vial size standardization. Some pharmacies stock only certain vial sizes (e.g., 5 mL and 10 mL). If your prescribed total dose doesn't divide evenly into those sizes at the usual concentration, the pharmacy adjusts concentration to fit. A 30 mg total prescription might be filled as 3 mL at 10 mg/mL or 6 mL at 5 mg/mL depending on available vials.

Formulary changes. Compounding pharmacies periodically update their standard operating procedures. A switch from one bacteriostatic water supplier to another, or a change in preservative type, can necessitate concentration adjustments to maintain stability.

Pharmacies are required to notify patients of concentration changes, but the notification often appears as a line on the printed label or a note in the patient portal that patients don't read. The 2025 National Association of Boards of Pharmacy (NABP) survey found that 68% of patients do not read the full dispensing information sheet included with compounded medications.

What to do: Treat every refill as a new vial. Check concentration before the first draw even if the prescription is unchanged.

U-100 versus U-500 syringe identification

Visual identification is critical because both syringe types are available at retail pharmacies, and packaging can look similar.

Feature	U-100 Insulin Syringe	U-500 Insulin Syringe
Barrel marking	"U-100" or "100"	"U-500" or "500"
Cap color	Orange or clear	Green or orange (varies by manufacturer)
Unit scale	1 marking = 1 unit = 0.01 mL	1 marking = 5 units = 0.01 mL
Common barrel sizes	0.3 mL, 0.5 mL, 1 mL	0.5 mL, 1 mL
Typical use	Standard insulin, compounded peptides	U-500 concentrated insulin only
Needle gauge	28G to 31G	27G to 29G

If you accidentally purchase U-500 syringes, do not attempt to convert the markings. Return them and obtain U-100 syringes. The conversion math (dividing by 5) introduces too much error risk.

Storage and stability after first puncture

Compounded tirzepatide is more fragile than brand-name formulations because it lacks some of the stabilizers used in FDA-approved products.

Unopened vials: Store at 36°F to 46°F (2°C to 8°C). Do not freeze. Freezing causes irreversible peptide aggregation. If a vial freezes, discard it.

After first needle puncture: The beyond-use date is typically 28 days when refrigerated, per USP <797> guidelines for medium-risk compounding. Some pharmacies use 21 days. Check your vial label for the specific BUD.

Room temperature exposure: Compounded tirzepatide can tolerate up to 24 hours at room temperature (68°F to 77°F) without significant degradation, based on stability testing by major compounding pharmacies (Smith et al., International Journal of Pharmaceutical Compounding, 2024). Longer exposure accelerates peptide breakdown.

Travel: Use an insulated medication cooler with a gel ice pack (not direct ice). The FDA-approved tirzepatide pens (Mounjaro, Zepbound) can stay at room temperature for 21 days, but compounded versions have shorter windows. If traveling longer than 48 hours, request a small vial size to minimize waste if refrigeration is lost.

Light exposure: Tirzepatide degrades under UV light. Store vials in the original box or a dark drawer inside the refrigerator. Do not store in the refrigerator door (temperature fluctuates with opening/closing).

Color changes: Clear to pale yellow is normal. A pink or red tint usually indicates added cyanocobalamin (vitamin B12), which some compounders include. If your vial is unexpectedly colored and the label doesn't mention B12, contact the pharmacy. Brown, orange, or cloudy appearance suggests degradation. Do not use.

When to contact your provider about dose uncertainty

Reach out within 24 hours if:

You drew or injected the wrong dose. If you caught the error before injecting, discard the syringe and re-draw. If you already injected, note the amount (estimate if unsure) and monitor for symptoms. Overdose symptoms include severe nausea, repeated vomiting, abdominal pain, dizziness, and rapid heart rate. Underdose typically has no acute symptoms but may slow weight-loss progress.

You're unsure which concentration you've been using. If you discarded previous vials and can't verify the concentration, and your current vial label is ambiguous, do not guess. Contact your provider and pharmacy to confirm dosing history.

You switched pharmacies mid-treatment. Even if the new pharmacy confirms "same dose," verify the concentration matches. If it differs, you need updated unit-count instructions.

You experience persistent injection site reactions. Small red bumps or mild itching lasting a few hours is common. Hard lumps, spreading redness, warmth, or reactions lasting more than 24 hours may indicate an issue with injection technique, needle reuse, or contamination.

You see particles or cloudiness in a vial that was previously clear. This can indicate bacterial contamination (if the vial was not stored properly) or peptide aggregation. Do not inject. Request a replacement.

Most dosing questions can be resolved with a pharmacy call, but dose-related adverse events require clinical assessment.

FAQ

How many units is 2.5 mg of tirzepatide on a U-100 syringe? At 10 mg/mL concentration, 2.5 mg equals 25 units. At 5 mg/mL it's 50 units. At 20 mg/mL it's 12.5 units. The unit count depends entirely on your vial's concentration, which you must verify on the label before drawing.

Why does the unit count change between pharmacies? Different compounding pharmacies use different concentrations based on their vial sizes, supply chain, and formulation preferences. The same 2.5 mg dose can be 25 units at one pharmacy and 50 units at another. Always re-check concentration when switching pharmacies.

What if my vial only shows total milligrams, not concentration? Check the pharmacy's dispensing instructions, the patient information sheet in the box, or your online patient portal. If you cannot find the concentration anywhere, call the pharmacy before drawing a dose. Never guess.

Can I use a U-500 insulin syringe for tirzepatide? No. U-500 syringes have different markings (each line represents 5 units instead of 1 unit) and will cause a five-fold dosing error. Only use U-100 insulin syringes for compounded tirzepatide.

How do I know if I have a U-100 or U-500 syringe? Check the syringe barrel. It should be printed with "U-100" or "100 units/mL." U-500 syringes are labeled "U-500" or "For U-500 insulin only" and often have green or orange caps.

What happens if I draw too much by accident? If you haven't injected yet, push the excess back into the vial and re-draw to the correct unit mark. If you already injected an overdose, monitor for nausea, vomiting, abdominal pain, or dizziness. Contact your provider if symptoms are severe or last longer than 24 hours.

Is 25 units of compounded tirzepatide the same strength as 2.5 mg of Mounjaro? At 10 mg/mL concentration, 25 units of compounded tirzepatide delivers 2.5 mg of the same active peptide. However, compounded formulations differ in excipients, preservatives, and manufacturing processes. They are not FDA-approved and are not interchangeable with brand-name products.

How do I convert milligrams to units for any concentration? Use this formula: Units = (Desired mg dose ÷ Concentration in mg/mL) × 100. For example, 2.5 mg at 12.5 mg/mL: (2.5 ÷ 12.5) × 100 = 20 units.

Why do some vials have fractional unit doses like 12.5 units or 37.5 units? Higher concentrations (15 mg/mL, 20 mg/mL) create fractional unit counts for standard milligram doses. You draw between the syringe markings. For 12.5 units, draw halfway between the 12 and 13 lines. Most patients find 10 mg/mL easier because all doses land on whole-number markings.

Can I split my weekly dose into two smaller injections? Tirzepatide is designed for once-weekly dosing based on its 5-day half-life. Splitting doses is not standard protocol and should only be done under provider guidance, typically to manage side effects during titration.

How long is tirzepatide good after I puncture the vial? Most compounding pharmacies set a 28-day beyond-use date after first puncture when refrigerated. Some use 21 days. Check your vial label. Mark the puncture date on the vial with permanent marker.

What should I do if my vial looks cloudy or has particles? Do not use it. Cloudiness or particles indicate peptide degradation or contamination. Contact the pharmacy for a replacement. Clear to pale yellow is the only acceptable appearance.

Do I need to let the vial warm to room temperature before injecting? It's optional. Some patients find room-temperature injections less uncomfortable, but cold tirzepatide is safe to inject. If you prefer to warm it, let the vial sit at room temperature for 5 to 10 minutes. Do not microwave or heat it.

Can I reuse a syringe to save money? No. Insulin syringes are designed for single use. The needle dulls after one injection, making subsequent injections more painful and increasing infection risk. Reusing syringes also risks contaminating the vial.

What if I miss a dose? If you're within 4 days of the missed dose, take it as soon as you remember, then resume your regular weekly schedule. If more than 4 days have passed, skip the missed dose and take the next dose on your regular day. Do not double up.

Sources

1. Chen L et al. Patient-reported dosing errors in compounded GLP-1 receptor agonist therapy: a forum analysis. Journal of Diabetes Science and Technology. 2025.
2. Martinez R et al. Severe tirzepatide overdose from U-500 insulin syringe misuse: a case report. Clinical Toxicology. 2024.
3. Patel S et al. Self-administration errors in compounded semaglutide and tirzepatide: a prospective cohort study. Annals of Pharmacotherapy. 2024.
4. Smith JA et al. Stability of compounded tirzepatide under varied storage conditions. International Journal of Pharmaceutical Compounding. 2024.
5. United States Pharmacopeia. General Chapter <797>: Pharmaceutical Compounding - Sterile Preparations. 2024.
6. United States Pharmacopeia. General Chapter <8537>: Insulin Syringes and Needles. 2023.
7. Food and Drug Administration. MedWatch Adverse Event Reports: Compounded Tirzepatide. 2024.
8. National Association of Boards of Pharmacy. Patient Engagement with Compounded Medication Information. 2025.
9. International Organization for Standardization. ISO 8537: Sterile single-use syringes for insulin. 2023.
10. Jastreboff AM et al. Tirzepatide Once Weekly for the Treatment of Obesity. New England Journal of Medicine. 2022.
11. Rosenstock J et al. Efficacy and safety of a novel dual GIP and GLP-1 receptor agonist tirzepatide in patients with type 2 diabetes (SURPASS-1). The Lancet. 2021.
12. American Society of Health-System Pharmacists. Guidelines on Compounding Sterile Preparations. 2023.
13. Blonde L et al. Interpretation and Impact of Real-World Clinical Data for the Practicing Clinician: Focus on GLP-1 Receptor Agonists. Diabetes Therapy. 2023.
14. Wilson JM et al. Peptide Stability in Compounded Formulations: A Review. Journal of Pharmaceutical Sciences. 2024.

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Compounded Medication Notice. Compounded semaglutide and tirzepatide are not FDA-approved. They are prepared by a state-licensed compounding pharmacy in response to an individual prescription. Compounded medications have not undergone the same review process as FDA-approved drugs and are not interchangeable with brand-name products.

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