YOUR COMPOUND / YOUR QUESTIONS

Tesamorelin.

Tesamorelin stimulates the body’s growth-hormone release and raises IGF-1. EGRIFTA products reduce excess abdominal fat in adults with HIV-associated lipodystrophy; clinics and community discussions also explore body composition and different weekly patterns.

Research focus: Visceral abdominal fat and growth-hormone signaling.

Randomized trials · product labels · community discussionSources checked October 12, 2026
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QUICK REFERENCE

The essentials.

Checked October 15, 2026
FDA status
FDA status and scope

EGRIFTA: excess abdominal fat in adults with HIV-associated lipodystrophy.

Official source ↗
FDA-approved products
Half-life
Half-life: source and route

Single-dose subcutaneous studies in healthy subjects. WR and SV have distinct formulations. The older 26-minute reference value is not used for these products.

Half-life describes concentration falling by half. It does not set a dosing interval, a storage period or a drug-test detection window.

Kinetics source ↗

Second formulation / component source ↗

WR: 11 min · SV: 8 minHuman · current product labels
Diluent / formulation
Diluent and formulation

WR uses its supplied bacteriostatic water; SV uses its supplied sterile water. These are different preparations, concentrations and usable periods.

Bacteriostatic water contains a preservative; plain sterile water does not. Preservative presence does not by itself establish compatibility or a mixed medicine’s usable period.

Preparation source ↗
WR: supplied BAC water · SV: supplied sterile waterProduct labels
START WITH THE EVIDENCE

What the documentation tells us.

Evidence context

The label instructions below apply to the named prescription products and their indications. A matching peptide name on another vial does not establish an equivalent formulation.

Check that a source concerns the same molecule, formulation, route and population. A study of cells, animals or a different product cannot confirm the contents of a vial.

Human trials, current WR/SV labels and separately attributed clinic and community reports.

How it works

A signal to the pituitary.

Tesamorelin binds GHRH receptors and stimulates growth hormone release. GH then increases insulin-like growth factor 1 (IGF-1). It acts upstream of GH rather than supplying GH itself.

Mechanism in the product label · section 12.1 ↗
What the outcome means

Visceral fat is a specific target.

Visceral adipose tissue (VAT) is fat around the internal organs, different from fat just beneath the skin. The pivotal studies measured abdominal VAT by CT; a VAT percentage is not a percentage of total body weight lost.

Explore the pivotal trial →

What to watch in the evidence: the label calls for monitoring IGF-1 and glucose. Fluid retention, joint pain and carpal tunnel symptoms are recognized concerns; short-term trial averages do not remove individual risk. Label safety and monitoring · sections 4–5 ↗

Learn to read a study →
DOSAGE & SCHEDULE CONTEXT

Community schedules and research routes.

Dosage & schedule options.

Reading these schedules

Each entry keeps one schedule’s amount, frequency and cycle together. Community references, individual reports, clinical trials and prescription products describe different kinds of use. A missing duration or break stays marked as not reported.

Amounts describe mass in mg or mcg. Syringe units describe volume and depend on concentration. A cycle break is different from days off within a week.

Choose an option to explore its amounts, timing and cycle.

Prescription productEGRIFTA WR · daily injectionsSubcutaneousOngoing prescribed treatment; one prepared vial supplies 7 daily doses

Dose
1.28 mg (0.16 mL at labeled 8 mg/mL)
How often
Once daily, 7 days/week
Route
Subcutaneous
Duration
Ongoing prescribed treatment; one prepared vial supplies 7 daily doses
Break after cycle
No scheduled cycle break in the label

Approved for excess abdominal fat in adults with HIV-associated lipodystrophy. “WR” refers to weekly reconstitution, not weekly injections.

Prescription productEGRIFTA SV · daily injectionsSubcutaneousOngoing prescribed treatment; freshly prepared single-use dose

Dose
1.4 mg (0.35 mL at 4 mg/mL)
How often
Once daily, 7 days/week
Route
Subcutaneous
Duration
Ongoing prescribed treatment; freshly prepared single-use dose
Break after cycle
No scheduled cycle break in the label

WR and SV have different doses and preparation instructions.

Published human studiesDaily injections · historical study formulationSubcutaneous26-week primary period; continuation up to 52 weeks

Dose
2 mg per injection
How often
Once daily, 7 days/week
Route
Subcutaneous
Duration
26-week primary period; continuation up to 52 weeks
Break after cycle
No scheduled weekly days off in the studied daily regimen

Historical 2 mg formulation; do not substitute this amount for current WR or SV.

Reported protocolFive-day injection cycleSubcutaneous3 months

Dose
1 mg per injection
How often
Once on each treatment day: 5 days on / 2 days off
Route
Subcutaneous
Duration
3 months
Break after cycle
2 months after the cycle
Time of day
Bedtime away from food, as proposed by the clinic

Proposed scheduleDaily increase · proposed scheduleSubcutaneousTwo-week initial stage; later duration not reported

Dose
1 mg per day initially; then 2 mg per day
How often
Daily
Route
Subcutaneous
Duration
Two-week initial stage; later duration not reported
Break after cycle
Not reported
Time of day
Fasted, before bed
Dose changes within this protocol
WhenAmount & frequency
First 2 weeks1 mg daily
After 2 weeks · proposed2 mg daily

A proposed community schedule. It is separate from the WR and SV prescription formulations.

Reconstitution & storage ↓
FROM THE COMMUNITY / WITH THE CONTEXT

Community research & perspectives.

About community labels

Community identifies source origin. It does not certify independent funding, medical credentials or the strength of a claim. Source types distinguish published reports, professional explanations and public discussions.

Explore reports, explanations and discussions from medical practices, researchers, suppliers and community members. The badges identify the source’s origin and evidence type.

How to read these source labels →
CommunityClinic explainer

A clinic’s five-on/two-off tesamorelin example

Perfect B: evidence & source context

No cited comparison validates equivalence to the pivotal daily trials or prevention of receptor desensitization.

Source relationship: Commercial aesthetics and wellness provider.

The clinic describes intermittent weekly use and a break between treatment periods. The quick card contrasts it with daily EGRIFTA labels and trials.

Clinic proposal · different from approved daily schedules

CommunityCommunity discussion

Daily dosing, five-on/two-off and formulation questions

Daily dosing, five-on/two-off and formulation questions: evidence & source context

This is a discussion, not a registered trial or a published clinical dataset. Product identity, doses, measurements and medical histories are not independently verified. It does not establish a starter regimen, equivalent results with days off, mandatory bedtime fasting or a universal reconstitution method.

Source relationship: Public pseudonymous account. Clinical credentials, funding and conflicts of interest are not verified; a forum badge does not establish independent research.

This discussion compares 1 mg and 2 mg, daily and five-on/two-off schedules, bedtime fasting, tolerability and a proposed 5 mg/mL preparation. Replies describe differing experiences. These topics are checked against trial reports and product labels in this guide.

Forum discussion · self-reports and proposed protocols · credentials unverified

FORMULATION FIRST

Reconstitution, storage and devices.

Product-specific handling

A peptide name and vial mass cannot determine a compatible diluent, powder displacement, storage temperature or discard date. Follow the exact product’s instructions and your pharmacist’s directions.

The injection guide concerns clinician-prescribed subcutaneous medicines; it does not establish that a research-labeled material can be injected.

Start with the formulation: dry powder, prepared solution, pen, tablet and topical product can have different instructions.

Storage: before and after opening.

US product label

EGRIFTA WR

Before opening
20–25°C (68–77°F) in the original box, protected from light.
After mixing / first use
After mixing: 20–25°C (68–77°F). Discard unused solution 7 days after mixing.
Handling & discard
Do not refrigerate or freeze the mixed vial. The diluent bottle has its own 28-day-after-first-use rule.
EGRIFTA WR label & instructions ↗
US product label

EGRIFTA SV

Before opening
20–25°C (68–77°F) in the original box, protected from light.
After mixing / first use
Use immediately after preparation; discard unused solution and diluent.
Handling & discard
Do not refrigerate or freeze the prepared solution. SV does not use WR’s seven-day prepared-vial rule.
EGRIFTA SV label & instructions ↗

Reconstitution depends on the formulation.

About formulation and concentration

A research vial’s mass and a Reddit recipe do not verify compatible diluent, stability or usable doses. Follow the exact product documentation. If a solution is cloudy, discolored or contains particles, the product labels say not to use it; adding other chemicals is not an approved troubleshooting step.

The thread’s proposed 5 mg/mL is a concentration example, not the concentration of either current EGRIFTA product. Here is what the product labels actually specify:

Product label

EGRIFTA WR · weekly preparation

Vial / supplied liquid
11.6 mg / Bacteriostatic Water for Injection, USP
Liquid added / labeled concentration
1.3 mL / 8 mg/mL
After preparation
Seven consecutive daily doses; discard at seven days

Swirl gently; do not shake. Use only clear, colorless solution without particles. Keep the prepared vial at 20–25°C (68–77°F); do not refrigerate or freeze. The diluent bottle’s 28-day discard rule is separate from the medicine’s seven-day rule.

WR preparation, storage and illustrated instructions ↗
Product label

EGRIFTA SV · single-use preparation

Vial / supplied liquid
2 mg / Sterile Water for Injection
Liquid added / labeled concentration
0.5 mL / 4 mg/mL
After preparation
Use immediately; discard unused solution and diluent

Roll gently in the hands for 30 seconds; do not shake. Use only clear, colorless solution without particles. Do not refrigerate or freeze the prepared solution. SV does not follow WR’s seven-day storage workflow.

SV preparation, storage and illustrated instructions ↗
Arithmetic example · not a preparation recipe

What does 5 mg/mL mean?

If a documented final solution is 5 mg/mL, a hypothetical 2 mg target corresponds to 0.4 mL = 40 U-100 scale units. The same concentration can be described by different mass / final-volume pairs:

2 mg / 0.4 mLAssumed final volume
5 mg / 1 mLAssumed final volume
10 mg / 2 mLAssumed final volume

These ratios do not specify how much liquid to add, which liquid is compatible or how long a vial can be used. For a product with a labeled concentration, use Advanced → Use a documented concentration (mg/mL) in the calculator. WR’s label specifies 8 mg/mL; dividing 11.6 by the 1.3 mL added would give the wrong labeled concentration.

Explore the concentration arithmetic ↓
THE EVERYDAY CONTEXT

Habits & tracking that help.

General health habits and consistent observations help you assess changes. They are not evidence that a peptide’s effects will be amplified.

Include movement and strength work

Choose activity that fits your health and ability. Aerobic movement and muscle-strengthening work are part of general adult activity guidance.

CDC · adult activity ↗

Keep a consistent sleep routine

Use a regular sleep/wake schedule and note changes in sleep quality alongside symptoms or training.

CDC · sleep habits ↗

What to record: Track food intake, appetite, activity and tolerability together. Appetite control should still leave room for adequate meals; review persistent eating difficulties with the treating clinician.

GO TO THE ORIGINAL

Documentation behind Tesamorelin.

About source checks

Check dates are editorial references, not a medical review certificate. Labels and evidence can change; consult the linked current document.

Study details, timing & schedule comparisons

Daily trials and community schedules.

About schedule comparisons

The calendar compares frequency, not effectiveness. Neither a weekly total nor a short plasma half-life can predict fat loss, IGF-1 response or tolerability. These are research questions, not a selected regimen.

The original phase 3 programs used 2 mg subcutaneously every day with the historical formulation: 26 weeks of randomized treatment followed by a 26-week extension. The pooled report included 806 participants (543 tesamorelin, 263 placebo), rather than the 740 quoted in the forum post. Read the pooled trial report ↗

Studied frequency

Daily · seven days per week

The pivotal daily schedule underlies the clinical results. Participants continuing treatment maintained VAT reductions through week 52.

CommunityDiscussion

Five-on/two-off · days off each week

This is discussed in the thread; the labels and trials reviewed here do not establish comparable outcomes for this pattern. Five administrations are two fewer per week, but the effect on VAT or IGF-1 cannot be calculated from that count.

Read the community discussion ↗

Current WR and SV doses are lower in milligrams because their labels describe exposure comparable to the older 2 mg formulation. They are not interchangeable. “WR” means weekly reconstitution; the labeled injection schedule remains daily. WR label · sections 2 and 12.3 ↗ · SV label ↗

Questions raised by the community.

How these claims were checked

These summaries distinguish the thread’s proposals from the reviewed original reports and product labels. A forum post can suggest a useful research question without providing a verified clinical protocol. No trial directly comparing daily and five-on/two-off was identified in this review.

Community question

1 mg versus 2 mg?

The thread proposes 1 mg initially, then 2 mg. A published 53-person, 12-week trial did compare 1 mg, 2 mg and placebo in type 2 diabetes. It examined metabolic safety, not equivalent VAT loss or a starter protocol for the wider community.

Read the dose-comparison study →
Community question

Bedtime, fasting and half-life?

The post proposes bedtime use while fasted. The reviewed labels do not specify mandatory bedtime or a two-hour fasting window. They report mean plasma half-lives of 8 minutes for SV and 11 minutes for WR in healthy subjects; that does not establish the best time of day or justify days off.

SV pharmacokinetics · section 12.3 ↗ · WR label ↗
Clinic explainer · Perfect B

A named five-on/two-off example.

Perfect B describes 1 mg on five days each week, for three months followed by two months off. It also discusses combinations with ipamorelin; that does not establish added benefit or the safety of combining the compounds.

Its “25 units” amount corresponds to 1 mg only at 4 mg/mL on a U-100 syringe. It is not a universal tesamorelin conversion. The clinic’s cycle rationale is not evidence that breaks prevent receptor desensitization.

Read the original clinic explanation ↗

Competitive sport: the 2026 WADA list names tesamorelin under S2.2.4, prohibited at all times. Athletes using prescribed treatment should consult their anti-doping organization about therapeutic-use exemption requirements. WADA list · S2 ↗

Duration and stopping: daily study periods of 26–52 weeks are not a universal “cycle.” The label describes VAT reaccumulation after withdrawal and says long-term cardiovascular safety is not established. Waist measurements and self-reports alone cannot distinguish VAT from other body changes. Clinical studies and limitations of use ↗

THE MATH, EXPLAINED

Tesamorelin calculator.

About calculator examples

Opening values and worked examples illustrate arithmetic; they are not preparation instructions or recommended amounts. Selecting a compound labels the calculation and does not supply a dose or powder-volume correction.

Enter the documented vial mass, preparation information and target amount to see how mass and volume connect.

An arithmetic example

20 mg in an assumed final 1 mL gives 20 mg/mL. An entered 1 mg corresponds to 0.05 mL, or 5 U-100 units, with 20 theoretical portions before losses.

YOUR CALCULATION WORKSPACE

Three tools. Clear numbers.

Open focused view →
01 / YOUR INPUTS

Vial → dose → syringe

mg
mL
Slider range: 1 to 20 mg, in 1 mg steps. Click a labeled value to select it. Type exact decimal amounts in the field above.
Advanced Volume & syringe settings
02 / YOUR RESULTCalculated

Tesamorelin

Estimate · assumes 1 mL added = total volume

U-100 syringe1 mL capacity · 100 units
Amount per dose
1 mg

1,000 mcg

Full doses per vial
5

Theoretical · before losses

Syringe amount per dose
20units

0.2 mL

Amount remaining
0 mg

After 5 full doses

U-100 volume scale

Illustration only · calculated value, without rounding

Concentration & remaining liquid
Concentration
5 mg/mL
Per U-100 unit
50 mcg
Full portions in vial
5
Theoretical remainder
0 mL

Saved calculations stay on this device.

See the calculation

Concentration = mass ÷ final volume

5 mg ÷ 1 mL = 5 mg/mL

Volume = target mass ÷ concentration

1 mg ÷ 5 mg/mL = 0.2 mL

U-100 markings = volume × 100

0.2 mL × 100 = 20 units

Complete portions = floor(vial mass ÷ amount per portion).

Displayed numbers are rounded for readability; the calculation uses unrounded values.

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