Oxytocin Price Comparison

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Oxytocin Profile

Fda Approved FDA Approved

Neurohypophysial Peptide | Social Bonding & Reproductive Hormone

Overview

Nine-amino-acid peptide hormone produced in hypothalamus, released by posterior pituitary. Functions in social bonding, trust, empathy, reproduction, childbirth, lactation. FDA-approved synthetically for labor induction and postpartum hemorrhage.

Mechanism of Action

Binds oxytocin receptors on uterine smooth muscle, triggering calcium influx and myometrial contractions. Stimulates prostaglandin release. In CNS, modulates GABAergic, serotonergic, dopaminergic neurotransmission; reduces cortisol and HPA axis activity.

Key Benefits

  • FDA-approved for labor induction with precise dosing via IV
  • Immediate onset in obstetric settings
  • Established safety profile in clinical use
  • Researched for anxiety, PTSD, autism, sexual dysfunction

Quick Stats

Typical Dose
Intranasal: 20-24 IU; Injectable: 10-40 IU; Sublingual: 50-100 IU
Frequency
As needed for social/sexual support, or 1-2x daily for anxiety/PTSD protocols; max 1 dose per 24hr for sexual function
Cycle Duration
As needed for research applications; 4-12 weeks for anxiety/autism protocols
Storage
Refrigerate at 2-8°C; protect from light

Molecular Information

Molecular Weight
1,007.19 Da
Length
9 amino acids
Type
Cyclic nonapeptide
Half-Life
3-6 minutes

Amino Acid Sequence

One-letter: CYIQNCPLG?
Cys
1

Cysteine

Position 1

Tyr
2

Tyrosine

Position 2

Ile
3

Isoleucine

Position 3

Gln
4

Glutamine

Position 4

Asn
5

Asparagine

Position 5

Cys
6

Cysteine

Position 6

Pro
7

Proline

Position 7

Leu
8

Leucine

Position 8

Gly
9

Glycine

Position 9

NH2
10

NH2

Position 10

N-terminus C-terminus
Hydrophobic
Polar
Positive (+)
Negative (-)
Modified

Modifications

Disulfide bridge between Cys1-Cys6 C-terminal amidation

Research Indications

The following information is derived from published scientific literature and is provided for educational and research reference purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These peptides are not approved for human use and are sold exclusively for in-vitro laboratory research.

Labor Induction

Most Effective

Initiates or augments uterine contractions when vaginal delivery medically indicated.

Postpartum Hemorrhage Control

Most Effective

Controls postpartum bleeding through uterine contraction stimulation during third stage.

Incomplete Abortion Management

Effective

Adjunctive therapy for incomplete or inevitable abortion in second trimester.

Autism Spectrum Disorders

Moderate

Extensive research with mixed results on social functioning; optimal dosing unclear.

PTSD Augmentation

Effective

Combined with exposure therapy; shows reduced PTSD/depression symptoms.

Social Anxiety

Moderate

Decreases amygdala reactivity to social threats; normalizes brain connectivity.

Sexual Function

Effective

Improves libido, arousal, orgasm intensity in both sexes.

Dosing Protocols

injectable

IV or IM administration in clinical settings. IV provides immediate onset; requires continuous infusion and monitoring for labor use.

Goal Dose Frequency Route
Labor Induction 0.5-2 mU/min initial, titrate to 1-2 mU/min every 30-60 min Continuous IV infusion IV (diluted)
Postpartum Hemorrhage Prevention 10 units IM or 10-40 units in IV solution Single dose after placental delivery IM or IV infusion

Key Tips

  • FDA-approved pharmaceutical formulation
  • Immediate onset (IV: 1-3 min; IM: 3-5 min)
  • Precise dosing control
Materials Needed
Oxytocin injection USP (10 units/mL) Compatible IV solution (0.9% NaCl or Lactated Ringer's) IV infusion pump (required) Continuous fetal monitoring equipment
Steps
  1. 1 Hospital/clinical procedure—qualified healthcare professionals only
  2. 2 Dilute oxytocin in compatible IV solution per facility protocol
  3. 3 Typical dilution: 10 units in 1000mL = 10 mU/mL
  4. 4 Use infusion pump for precise rate control
  5. 5 Monitor uterine contractions and fetal heart rate continuously

nasal

Nasal spray delivers oxytocin directly to brain via olfactory and trigeminal pathways, bypassing blood-brain barrier. Primary research route for psychological/social effects.

Goal Dose Frequency Route
Social anxiety/bonding enhancement 20-24 IU Once daily or before social situations Intranasal spray
Autism research protocols 24-48 IU daily Twice daily Intranasal spray
PTSD therapy augmentation 40 IU Before therapy sessions Intranasal spray
Sexual function enhancement 24-40 IU 30-45 minutes before activity Intranasal spray

Key Tips

  • Direct nose-to-brain delivery
  • Non-invasive, convenient administration
  • Rapid CNS effects (15-30 min onset)
Materials Needed
Oxytocin nasal spray (compounded) or lyophilized powder Sterile saline or bacteriostatic water Metered dose nasal spray bottle
Steps
  1. 1 If using pre-made compounded spray, proceed to use
  2. 2 For powder: calculate desired concentration (typically 4-6 IU per 0.1mL)
  3. 3 Add calculated volume of sterile saline to vial
  4. 4 Gently swirl until fully dissolved—do not shake
  5. 5 Transfer to sterile metered-dose nasal spray bottle
  6. 6 Prime pump with 2-3 sprays before first use
  7. 7 Store refrigerated 2-8°C; use within 30 days

oral

Sublingual troches provide needle-free administration. Lower bioavailability (~4.5% vs 11% intranasal) requires higher doses.

Goal Dose Frequency Route
General wellness/bonding support 50-100 IU Once daily Sublingual troche
Sexual function support 100 IU 30-45 minutes before activity Sublingual troche

Key Tips

  • Needle-free, convenient administration
  • Pre-dosed troches eliminate measurement variability
  • Suitable for needle-averse individuals

Peptide Interactions

Vasopressin (AVP)

Monitor

Structurally similar; overlapping receptor affinity with potential additive effects.

Selank

Synergistic

Complementary anxiolytic effects—Selank modulates GABA; oxytocin acts on central receptors.

PT-141 (Bremelanotide)

Synergistic

Complementary sexual function effects via different pathways.

Kisspeptin

Synergistic

Both involved in reproduction; kisspeptin stimulates GnRH; oxytocin enhances arousal.

BPC-157

Compatible

No direct interactions; different mechanisms (tissue repair vs social function).

SSRI Antidepressants

Monitor

SSRIs may affect endogenous oxytocin; combined use requires healthcare provider oversight.

Alcohol

Avoid

Alcohol suppresses oxytocin release; reduces therapeutic effects.

What to Expect

Injectable

IV: 1-3 minute onset, 30-60 minute duration; IM: 3-5 minute onset

Intranasal

15-30 minute onset, peak 30-60 minutes, 2-4 hour duration

Sublingual

30-45 minute onset, peak ~60 minutes, 2-4 hour duration

Side Effects & Safety

Common Side Effects

  • Mild headache
  • Nasal irritation (intranasal)
  • Nausea or vomiting
  • Transient blood pressure changes

Monitoring

  • Continuous electronic fetal monitoring during labor (injectable)
  • Blood pressure monitoring
  • Electrolyte levels if exceeding 24 IU daily long-term (intranasal)

Stop Signs

  • Uterine hyperstimulation or fetal distress (injectable)
  • Severe or persistent headache
  • Signs of water intoxication (confusion, seizures, swelling)
  • Severe nasal irritation or bleeding
  • Allergic reaction (rash, breathing difficulty)

Contraindications

  • Certain obstetric conditions (see prescribing info)
  • Pregnancy (without medical supervision)
  • Active sinus infection (intranasal)
  • Severe hyponatremia

Quality Checklist

Good Signs

  • FDA-approved pharmaceutical product from licensed pharmacies (injectable)
  • Clear, colorless solution without particles or discoloration
  • Proper packaging with verified lot number, expiration, concentration
  • Licensed compounding pharmacy source with USP compliance

Warning Signs

  • Variable compounding quality between pharmacies
  • Nasal congestion reduces intranasal absorption
  • Sublingual has lower bioavailability than intranasal

Bad Signs

  • Cloudy, discolored, or particulate solution
  • From unlicensed or unverified sources
  • Improper storage or broken cold chain

Research & References

Key References

  1. 1996

    Oxytocin is required for nursing but is not essential for parturition or reproductive behavior. PubMed

    Proceedings of the National Academy of Sciences of the United States of America · Nishimori K, Young LJ, Guo Q, Wang Z, Insel TR, Matzuk MM

    This mouse knockout study found that oxytocin-deficient females could mate and give birth but showed impaired milk ejection and nursing-related physiology.

  2. 2000

    Social amnesia in mice lacking the oxytocin gene. PubMed

    Nature genetics · Ferguson JN, Young LJ, Hearn EF, Matzuk MM, Insel TR, Winslow JT

    This study reported that mice lacking the oxytocin gene had impaired social recognition while several nonsocial memory measures were comparatively preserved.

  3. 2001

    The oxytocin receptor system: structure, function, and regulation. PubMed

    Physiological reviews · Gimpl G, Fahrenholz F

    This review summarized oxytocin receptor structure, signaling pathways, tissue distribution, regulation, and physiological roles in reproductive and central nervous system contexts.

  4. 2005

    Oxytocin increases trust in humans. PubMed

    Nature · Kosfeld M, Heinrichs M, Zak PJ, Fischbacher U, Fehr E

    This double-blind experiment found that intranasal oxytocin was associated with larger monetary transfers in a trust game, without a comparable change in a nonsocial risk task.

  5. 2005

    Oxytocin modulates neural circuitry for social cognition and fear in humans. PubMed

    The Journal of neuroscience : the official journal of the Society for Neuroscience · Kirsch P, Esslinger C, Chen Q, Mier D, Lis S, Siddhanti S, Gruppe H, Mattay VS, Gallhofer B, Meyer-Lindenberg A

    This functional neuroimaging study reported altered amygdala activation and connectivity during social and fear-related tasks after intranasal oxytocin administration.

  6. 2021

    Intranasal Oxytocin in Children and Adolescents with Autism Spectrum Disorder. PubMed

    The New England journal of medicine · Sikich L, Kolevzon A, King BH, McDougle CJ, Sanders KB, Kim SJ, Spanos M, Chandrasekhar T, Trelles MDP, Rockhill CM, Palumbo ML, Witters Cundiff A, Montgomery A, Siper P, Minjarez M, Nowinski LA, Marler S, Shuffrey LC, Alderman C, Weissman J, Zappone B, Mullett JE, Crosson H, Hong N, Siecinski SK, Giamberardino SN, Luo S, She L, Bhapkar M, Dean R, Scheer A, Johnson JL, Gregory SG, Veenstra-VanderWeele J

    This randomized clinical trial in children and adolescents with autism spectrum disorder found no significant between-group difference versus placebo on the primary social-functioning endpoint over 24 weeks.

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