Compounded tirzepatide arrives either as a pre-mixed liquid in a glass vial or as a freeze-dried powder that the patient reconstitutes at home with bacteriostatic water. Both formats use a U-100 insulin syringe for dosing. The difference is in setup, not in the injection itself.<\/p>\n
This chart covers reconstitution math, dosing math, and every titration step from 2.5 mg through 15 mg across the three concentrations you are likely to receive from a U.S. 503A compounding pharmacy.<\/p>\n
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A typical kit has one or two glass vials of powdered or liquid tirzepatide, a separate vial of bacteriostatic water (if powder), U-100 insulin syringes, alcohol pads, and a dosing label that tells you the unit count for your titration step.<\/strong><\/p>\n Quick Answer: A 20 mg powder vial mixed with 2 mL bacteriostatic water gives 10 mg\/mL, the most common starting concentration<\/p>\n Powder vials are labeled by total drug content: 10 mg, 20 mg, 40 mg, or 60 mg. Liquid vials are labeled by concentration in mg\/mL. Most pharmacies start patients on a 10 mg\/mL concentration and switch to 20 mg\/mL during the climb to higher doses.<\/p>\n Powder kits ship more reliably in hot weather because the dry peptide is more thermally stable. Liquid kits are easier to use because no reconstitution is needed.<\/p>\n Bring the powder vial to room temperature for 5 to 10 minutes.<\/strong> Wipe both rubber stoppers with an alcohol pad. Draw the required amount of bacteriostatic water into a syringe.<\/p>\n Insert the needle into the powder vial at an angle so the water flows down the inside of the glass. Inject slowly to avoid foaming. Swirl or roll the vial between your palms until the powder dissolves. Do not shake. The peptide is sensitive to mechanical stress and shaking can damage it.<\/p>\n A correctly mixed solution is clear and colorless. Cloudiness or particles means the vial is compromised. Label the vial with the date and concentration. Store in the fridge between 36 and 46 F.<\/p>\n Concentration depends on the ratio of drug to water.<\/strong> The formula is concentration (mg\/mL) = drug (mg) \/ water (mL). The pharmacy prints a specific instruction on the kit, but the common mixes are:<\/p>\n Starting kits are usually 10 mg\/mL because that concentration covers the 2.5 mg and 5 mg titration doses without the volumes getting too small. Maintenance kits are usually 20 mg\/mL because the 10, 12.5, and 15 mg doses fit in one 1 mL syringe.<\/p>\n This is the standard starting concentration for compounded tirzepatide.<\/strong> At 10 mg\/mL:<\/p>\n Once a patient passes 10 mg, the pharmacy usually switches the next shipment to 20 mg\/mL. Some patients prefer to split a 12.5 mg or 15 mg dose into two injections in different sites, but the cleaner approach is to ask for the higher concentration.<\/p>\n A 20 mg vial reconstituted to 10 mg\/mL covers 4 weeks of 5 mg dosing or 2 weeks of 10 mg dosing.<\/p>\n This is the standard maintenance concentration.<\/strong> At 20 mg\/mL:<\/p>\n At 20 mg\/mL, the half-unit precision matters at the 2.5 mg and 7.5 mg steps. A 0.3 mL or 0.5 mL syringe with 1-unit markings is easier to read than a 1 mL syringe with 2-unit markings.<\/p>\n A 40 mg vial reconstituted to 20 mg\/mL covers 4 weeks at 10 mg or 2.6 weeks at 15 mg.<\/p>\n Key Takeaway: Doses above 10 mg usually require a switch to 20 mg\/mL so the volume fits in one 1 mL syringe<\/p>\n A small number of pharmacies offer 40 mg\/mL tirzepatide for high-dose maintenance.<\/strong> At 40 mg\/mL:<\/p>\n This concentration is too concentrated for the 2.5 mg starting step. It is useful for established maintenance patients who want fewer vials per shipment.<\/p>\n The standard schedule is 4 weeks at each step: 2.5 mg, then 5 mg, then 7.5 mg, 10 mg, 12.5 mg, and 15 mg.<\/strong> This matches the FDA label for Zepbound\u00ae and Mounjaro\u00ae and the SURMOUNT-1 trial protocol.<\/p>\n The 2.5 mg starting dose is non-therapeutic. It exists to acclimate the gut. The first therapeutic step is 5 mg. Maintenance can be anywhere from 5 to 15 mg depending on results and tolerability.<\/p>\n SURMOUNT-1 produced 15.0% weight loss at 5 mg, 19.5% at 10 mg, and 20.9% at 15 mg over 72 weeks. SURMOUNT-OSA (Malhotra et al. 2024 NEJM) led to FDA approval for obstructive sleep apnea in December 2024 at 10 and 15 mg maintenance.<\/p>\n TrimRx ships compounded tirzepatide through licensed U.S.<\/strong> compounding pharmacies. Starting kits are usually at 10 mg\/mL in a 2 mL vial, with a transition to 20 mg\/mL once the patient crosses the 10 mg weekly dose. Every shipment includes a dosing label with the unit count for the current titration step.<\/p>\n A free assessment quiz checks eligibility and identifies the right starting dose. The personalized treatment plan accounts for prior GLP-1 use, BMI, comorbidities, and tolerability targets.<\/p>\n Bottom line: Use bacteriostatic water, not sterile water or saline, for reconstitution<\/p>\n The concentration scales with the water you add. If you put in 2 mL instead of 1 mL into a 20 mg vial, your concentration is 10 mg\/mL instead of 20 mg\/mL. Recalculate the unit count before the first dose, or contact the pharmacy if you are unsure.<\/p>\n Most compounding pharmacies set a 28-day beyond-use date for refrigerated reconstituted tirzepatide, following USP <797> guidance for multi-dose preservative-containing preparations. Discard at 28 days even if drug remains.<\/p>\n Yes. A 15 mg dose at 10 mg\/mL is 1.5 mL, which exceeds a 1 mL syringe. Splitting it into two 0.75 mL injections in different abdominal sites is clinically acceptable. Most patients prefer to ask for a 20 mg\/mL refill instead.<\/p>\n The FDA-approved titration steps are 2.5, 5, 7.5, 10, 12.5, and 15 mg. There is no 11 or 12 mg step. The 12.5 mg step exists because patient data showed jumping straight from 10 to 15 mg increased GI dropout rates.<\/p>\n No. U-100 syringes are single-use. The needle dulls after one injection and the inside of the barrel is no longer sterile.<\/p>\n Stop and recalculate before injecting. The formula is dose (mg) x 100 \/ concentration (mg\/mL) = units. A 5 mg dose is 50 units at 10 mg\/mL but only 25 units at 20 mg\/mL.<\/p>\n Yes. Compounded tirzepatide is stored between 36 and 46 F. Brief room-temperature excursions during the actual injection are fine, but the vial goes back in the fridge afterward.<\/p>\n Disclaimer:<\/strong> This content is for informational purposes only and does not constitute medical advice. It is not intended to diagnose, treat, cure, or prevent any disease or condition. Individual results may vary. Always consult a qualified healthcare professional before starting any weight loss program or medication.<\/p>\n <\/p>\n Introduction Compounded tirzepatide arrives either as a pre-mixed liquid in a glass vial or as a freeze-dried powder that the patient reconstitutes at home…<\/p>\n","protected":false},"author":11,"featured_media":92711,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_yoast_wpseo_title":"Compounded Tirzepatide Dosage Chart: Mixing and Dosing","_yoast_wpseo_metadesc":"Compounded tirzepatide arrives either as a pre-mixed liquid in a glass vial or as a freeze-dried powder that the patient reconstitutes at home with...","_yoast_wpseo_focuskw":"compounded tirzepatide dosage","footnotes":"","_flyrank_wpseo_metadesc":""},"categories":[9],"tags":[22,25,52],"class_list":["post-89365","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tirzepatide","tag-compounded","tag-dosing","tag-tirzepatide"],"_links":{"self":[{"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/posts\/89365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/comments?post=89365"}],"version-history":[{"count":2,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/posts\/89365\/revisions"}],"predecessor-version":[{"id":93712,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/posts\/89365\/revisions\/93712"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/media\/92711"}],"wp:attachment":[{"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/media?parent=89365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/categories?post=89365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trimrx.com\/blog\/wp-json\/wp\/v2\/tags?post=89365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}How Do I Reconstitute the Powder Vial?<\/h2>\n
What Concentration Should I Mix To?<\/h2>\n
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What Does the Dosage Chart Look Like at 10 mg\/mL?<\/h2>\n
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What Does the Chart Look Like at 20 mg\/mL?<\/h2>\n
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What Does the Chart Look Like at 40 mg\/mL?<\/h2>\n
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What Is the Right Titration Schedule for Compounded Tirzepatide?<\/h2>\n
How Does TrimRx Ship Compounded Tirzepatide?<\/h2>\n
FAQ<\/h2>\n
What If I Added the Wrong Amount of Bacteriostatic Water?<\/h3>\n
How Long Is Reconstituted Tirzepatide Stable in the Fridge?<\/h3>\n
Can I Split a Dose Into Two Injections to Use a Higher-concentration Vial?<\/h3>\n
Why Does the Chart Skip From 10 Mg to 12.5 Mg?<\/h3>\n
Can I Reuse a Syringe?<\/h3>\n
What If My Pharmacy Ships a Higher Concentration Than I Am Used To?<\/h3>\n
Do I Need to Refrigerate the Vial After Every Dose?<\/h3>\n
Related Articles<\/h2>\n
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