PeptideLabs Logo
PeptideLabs
All profiles

Oxytocin

Peptide · Hormones & reproduction

Regulates labour and milk-ejection signalling, among other functions. Approved uses are prescription-only and medically supervised.

Approved for specific uses
LibraryNo account · this device only

Also known as: Oxytocin acetate · Pitocin · Syntocinon

Use at a glance

Oxytocin

Regulates labour and milk-ejection signalling, among other functions. Approved uses are prescription-only and medically supervised.

Which entry would you like to view?

Choose a source entry. Different products and study groups do not form one combined plan.

Study information · not a personal use plan

Product or source: Oxytocin · PMID 24352377

What amount?
24 IU
How often?
single dose in the study protocol
What time of day?
Time of day not stated here; see the study plan
In what setting?
Single-dose study

mg and µg: substance amount · ml: liquid volume. Depending on the product, U can mean a device scale or units of activity. IU and USP U are activity units, not ml or pen clicks. These measures are not interchangeable.

How is it used?
Approved use takes place in a medical treatment setting. Research uses are a separate matter.
Does it need mixing?
Any required dilution follows the specific prescribing information and medical treatment plan.
View preparationCheck sources
Overview of all entries

  • Oxytocin · Single-dose study

    Study information · not a personal use plan · PMID 24352377

    24 IU · single dose in the study protocol · Time of day not stated here; see the study plan

  • Oxytocin · Eight-week study

    Study information · not a personal use plan · PMID 38815173

    24 IU · 4 times per day · 8 weeks · Time of day not stated here; see the study plan

  • Oxytocin · Community subcutaneous reports

    Online report · not medically verified

    100–500 µg · once per day · not reliably established

  • Oxytocin · Product concentration

    Medicine instructions · named product only · DailyMed

    10 USP U/ml · per the exact prescribing information · Time of day not stated here

mg and µg: substance amount · ml: liquid volume. Depending on the product, U can mean a device scale or units of activity. IU and USP U are activity units, not ml or pen clicks. These measures are not interchangeable.

More factsPeptide · Hormones & reproduction
Classification
Peptide · Hormones & reproduction
Research focus
Regulates labour and milk-ejection signalling, among other functions. Approved uses are prescription-only and medically supervised.
Evidence
Established
Status
Approved for specific uses

Approved uses exist, but dose, formulation, device and monitoring are product- and indication-specific. A community table cannot replace the prescribing information or a prescription.

Schedule explained in detailApproved medicine

Amount status

Community source: intranasal research often uses 24 IU as a single dose, other studies 9/18/36 IU; subcutaneous community claims of 100–500 µg once daily. Not a recommendation, and not equivalent to obstetric use.

Profile evidence level: established.

Timing

Timing ranges from single doses to daily; route and unit standard are not interchangeable.

No individual recommendation.

Cycle/duration

Community cycles range from a single occasion to 4–6 weeks with a 1–2 week break. Long-term outcomes are mixed or negative.

No individual recommendation.

External community reference availableThe external page is used only to document community claims. Advertising and affiliate material were excluded; its content is neither approval nor proof of quality.

External community reference available

The external page is used only to document community claims. Advertising and affiliate material were excluded; its content is neither approval nor proof of quality.

Open community source

Mixing & calculations

Any required dilution follows the specific prescribing information and medical treatment plan.

See calculation examplesFollow sample figures to understand mg, ml and scale markings.

Documented vial and fluid examples

The table shows only the arithmetic for explicitly stated inputs. It confirms neither vial content nor stability, sterility or an appropriate target amount.

2 mg · assumed final volume: 2 ml

Community calculation example
Calculated amount100 µg
Concentration1,000 µg/ml
U-10010 U
Volume0.1 ml
Calculated amount500 µg
Concentration1,000 µg/ml
U-10050 U
Volume0.5 ml
All preparation informationProduct details and calculation examples from the available sources.

Approved oxytocin is a ready-to-use solution at 10 USP U/ml and is medically supervised. The community approximation of 1 IU ≈2 µg must not be used to convert the USP finished product.

Reconstitution & quantitiesOpen basics, units and sources
Explained in very simple termsBefore reading any number: this page reports what a product label, study or online community states. It does not say what any person should use.

Amount

mg or µg describe the mass of a substance. That is not the same as ml of fluid or U on a syringe. The number is only the amount stated by the identified source.

Interval

The interval only describes the time stated between two points. For example, once every 7 days does not mean daily and never justifies catching up or doubling.

Cycle

A cycle is a stated period that may include breaks. A community cycle proves neither effectiveness nor safety and does not prevent long-term risks.

Reconstitution

Reconstitution means mixing powder with a defined volume of fluid. This changes concentration, not the total amount in the vial. On U-100, 100 U equals exactly 1 ml of volume.

Not a guide to misuse

All community figures are shown only to place widely circulated online protocols in context. They are not instructions for self-use, injection, performance enhancement or any other misuse. Approved figures apply only to the exact named product, approved indication and medical supervision.

Research, risks & more detailsMechanism, adverse effects, storage, comparisons and common questions.

Mechanism: what is supported and what does not follow

Endogenous peptide hormone acting at the oxytocin receptor

Oxytocin is classified as “Endogenous peptide hormone acting at the oxytocin receptor”. Regulates labour and milk-ejection signalling, among other functions. Approved uses are prescription-only and medically supervised. This describes the investigated pathway but does not validate a community use, amount, route or combination.

01

Oxytocin receptor signalling

This studies how activating the oxytocin receptor affects social bonding, uterine contractions, or milk ejection, similar to a key opening a specific lock. Physiological responses and sometimes behavioural markers are measured in studies.

02

Reproductive hormone signalling

This examines effects on hormone axes influencing libido, cycle, or fertility, similar to a feedback loop connecting several glands. Hormone levels and subjective questionnaires are measured in studies.

03

Neuroendocrine signalling

This examines how the nervous system and hormone-producing glands communicate with each other, similar to a two-way phone line connecting the brain to distant organs. Researchers typically measure hormone levels in blood alongside markers of nervous system activity.

What communities discuss

These themes describe discussions and vendor claims. They do not prove benefit, safety, product identity or suitable use.

Fertility and libido forums

Personal experiences with hormone-signalling peptides related to libido or cycle are discussed, often compared to approved products. Such experience reports are individual and do not replace medical evaluation or controlled studies.

General wellness forums

Broader wellbeing impressions such as mood, sleep, and general feeling after using various products are exchanged here, usually without structured tracking. Such general impressions are not a substitute for targeted clinical examination.

Source and purity discussion

Discussion covers which vendors are seen as more trustworthy and how purity test results differ between batches. Such community assessments are based on limited samples and do not replace independent lab testing of each individual batch.

Adverse effects and safety risks

  • Reproductive, vasoactive or fluid-regulating signals can affect hormone axes, blood pressure, heart rate, fluid balance and pregnancy; risks depend strongly on route and indication.
  • Local reaction, infection, abscess and contamination are possible with any injection that is not professionally manufactured and administered.
  • A label or clear appearance does not exclude unknown purity, wrong identity, endotoxins or concentration errors.

Do not self-use / obtain clinical review

  • Pregnancy or fertility planning, cardiovascular disease, electrolyte/fluid disorders and hormone-sensitive disease require indication-specific medical oversight.
  • Acute symptoms, allergic reaction, breathing difficulty, chest pain, neurological deficits or severe abdominal pain require immediate medical care.
  • Children and adolescents, pregnancy/breastfeeding, and people with relevant disease should not be part of unsupervised experiments.

Monitoring and laboratory markers

  • Depending on the objective, vital signs, fluid balance, electrolytes, reproductive hormones and clearly defined clinical endpoints may be monitored.
  • Baseline, objective, measurement timing and stop criteria must be defined professionally in advance. Individual laboratory values cannot compensate for unknown product quality.

Evidence boundary

Established

Approved uses are prescription-only and medically supervised.

Clinical evidence

The described biological role is well established, or extensive regulator-reviewed human data exist for clearly defined products and uses. This does not automatically transfer to other products or purposes.

Oxytocin is an endogenous hormone with approved, medically supervised uses, unlike unregulated research peptides.

Storage and stability

  • The manufacturer label and prescribing information take priority. Storage instructions from a different product do not transfer.
  • Unapproved vials often lack dependable stability data before and after mixing; ‘2–8 °C’ or ‘28 days’ is not a universal standard.
  • Do not use after seal damage, particles, cloudiness, discoloration, unknown date or interrupted cold chain. Visual inspection does not prove sterility.

Troubleshooting and common errors

  • U-100 units measure volume, not drug amount: 100 U equals 1 mL. A wrong concentration makes every unit figure wrong.
  • Do not shake or dilute further to ‘fix’ cloudiness, particles or uncertain solubility; discard and obtain professional clarification.
  • Do not calculate a double or extra amount to compensate for missed use or an uncertain injection.
  • Without a COA, clear supplier, correct label and consistent vial information, identity is not confirmed.

Regulatory status and WADA

Approved for specific uses

Prescription active ingredient for defined indications in at least one jurisdiction; not offered here.

WADA 2026

The atlas has no explicit WADA flag for this profile. That does not automatically mean every form, route or related class is permitted in sport.

WADA — 2026 Prohibited List

Combinations / stacks

  • Combinations change effects, adverse effects and laboratory values; evidence for one substance does not establish the safety of a stack.
  • Overlapping pathways may add up. Hormonal, glucose, blood-pressure, coagulation, immune and sedating effects are important potential interactions.
  • Non-standardised blends prevent separate dosing, cause attribution and dependable reconstitution.

Frequently asked questions

Is an amount shown here a recommendation?

No. This page separates approved product information, study protocols and community information. No number or calculator is an individual dosing recommendation.

Does the U-100 calculator prove correct use?

No. It only converts mass, volume and syringe scale. It cannot check identity, purity, sterility, stability, solvent or medical suitability.

Can this profile be combined with other substances?

Safety of a combination cannot be inferred from a single-substance profile. Overlapping pathways, medicines and undefined blends can increase risk.

Which source controls when information conflicts?

For approved medicines, the current prescribing information and treating professional control. For research substances, conflict shows that no dependable self-use standard exists.

Are community claims clinical evidence?

No. Anecdotes can generate questions but do not replace controlled studies, regulatory review, or identity and quality testing.

Sources and evidence hierarchy

Primary sources and official registries take priority. The community reference is labelled separately.

Back to all 64 profilesOpen scientific atlas profile