oxytocin calculator
5 mg in 2 mL = 2.5 mg/mL; 10 units on a U-100 syringe holds 0.25 mg.
Sizes on sale: 2mg, 5mg, 10mg. Choose a vial, the water and the amount per draw; prices are the lowest current US offers.
price, vial size and certificate correction
Lowest current US offer for this size.
Most 2–15 mg vials hold 3 mL.
From the lot certificate; it replaces the label amount.
2.5 mg/mL
10 units holds 0.25 mg
- concentration
- 2.5 mg/mL
- per unit
- 25 mcg per unit
- full draws per vial
- —
- cost per draw
- —
the working
- 5 mg ÷ 2 mL = 2.5 mg/mL
If this is a prescription, the dose and volume on your pharmacy label take priority. Ask your pharmacist about any mismatch.
cheapest way to buy it
| vendor | size | price | $/mg | checked | calculate with this vial, or view it |
|---|---|---|---|---|---|
| LA Peptidesfeatured partnerCOA 10.31 mg | 10mg | $49.99 | $5.00 | 2026-11-03 | view, Oxytocin 10mg at LA Peptides, opens in a new tab |
| Amino USA | 5mg | $35.00 | $7.00 | 2026-11-06 | view, Oxytocin 5mg at Amino USA, opens in a new tab |
| Cenexa Labs | 2mg | $38.99 | $19.50 | 2026-11-06 | view, Oxytocin 2mg at Cenexa Labs, opens in a new tab |
In-stock US offers checked in the last 7 days, before shipping. The featured partner is a paid placement and is labelled; order here is by price per mg.
FDA-approved · cited sources
doses of Oxytocin used in research
FDA-approved as PITOCIN and generic oxytocin injection, dosed only in USP units by IV infusion or IM injection (labour induction starts at 0.5-1 mU/min; 10 units IM after delivery of the placenta); intranasal oxytocin has been trialled but is not approved. The catalogue stocks mg vials plus nasal and oral spray variants, so no label dose maps directly onto the product size. These are the amounts specific labels and studies used, linked to each source. They are references, not recommendations; a prescription label takes priority.
| source | who | amount and schedule | route |
|---|---|---|---|
| Pitocin label: labour induction, 0.5-1 mU/min titrated FDA label · 2026 · 969d5b35-0add-4c23-9605-6a5b6ab65c95 | pregnant women requiring induction or stimulation of labour | 0.5-1 mU/min (initial) → +1-2 mU/min every 30-60 min → 9-10 mU/min (rarely exceeded) continuous infusion in mU/min, increased every 30-60 minutes Standard solution is 10 units in 1,000 mL (10 mU/mL) by infusion pump. Start at 0.5-1 mU/min and raise by 1-2 mU/min every 30-60 minutes until an adequate contraction pattern is established; the dose may be reduced by similar steps once labour reaches 5-6 cm dilation. Rates above 9-10 mU/min are rarely required. IV infusion is the only acceptable parenteral route for induction. | intravenous |
| Pitocin label: postpartum bleeding, 10 units IM FDA label · 2026 · 969d5b35-0add-4c23-9605-6a5b6ab65c95 | women with postpartum uterine bleeding | 10 IU single dose after delivery of the placenta 10 USP units (1 mL) intramuscularly after delivery of the placenta, or 10-40 units added to a running IV infusion (maximum 40 units per 1,000 mL) at a rate that controls uterine atony. | intramuscular |
| Phase 2 (NEJM 2021, SOARS-B): intranasal 48 IU daily phase 2 trial · 2021 · NCT01944046 | 290 children and adolescents aged 3-17 with autism spectrum disorder | 48 IU daily (total target daily dose; the per-administration split is not given in the abstract) 24 weeks Placebo-controlled trial: no significant difference from placebo on the primary social-withdrawal endpoint (least-squares mean difference -0.2, 95% CI -1.5 to 1.0; P=0.61), and adverse events were similar between groups. Intranasal use is neither an approved route nor an approved indication. | intranasal |
Sources checked Nov 4, 2026.
Oxytocin 5mg in 2 mL
amount to syringe units
| amount | mL | U-100 units | U-40 units |
|---|---|---|---|
| 100 mcg | 0.04 | 4 | 1.6 |
| 250 mcg | 0.1 | 10 | 4 |
| 500 mcg | 0.2 | 20 | 8 |
| 1 mg | 0.4 | 40 | 16 |
| 2 mg | 0.8 | 80 | 32 |
| 2.5 mg | 1 | 100 | 40 |
| 5 mg | 2 | 200 | 80 |
One unit on a U-100 syringe is 0.01 mL; on a U-40 it is 0.025 mL.
every Oxytocin vial size on sale
reconstitution chart
| vial | 1 mL water | 2 mL water | 3 mL water | 5 mL water |
|---|---|---|---|---|
| 2 mg | 2 mg/mL 10 units = 0.2 mg | 1 mg/mL 10 units = 0.1 mg | 0.667 mg/mL 10 units = 66.7 mcg | 0.4 mg/mL 10 units = 40 mcg |
| 5 mg | 5 mg/mL 10 units = 0.5 mg | 2.5 mg/mL 10 units = 0.25 mg | 1.667 mg/mL 10 units = 0.167 mg | 1 mg/mL 10 units = 0.1 mg |
| 10 mg | 10 mg/mL 10 units = 1 mg | 5 mg/mL 10 units = 0.5 mg | 3.333 mg/mL 10 units = 0.333 mg | 2 mg/mL 10 units = 0.2 mg |
10 units on a U-100 syringe is 0.1 mL. Every cell is exact arithmetic: amount ÷ water.
what the numbers mean · where they come from
terms and sources
- Label amount or measured amount. The calculator starts from the amount printed on the vial. A lot certificate’s measured content (net peptide content, in mg) can replace it for the vial that was tested. HPLC purity is a share of peak area, not a mass, so a purity-only correction is shown as an estimate. See HPLC, certificate of analysis and how to read a peptide COA.
- Concentration. Amount in the vial ÷ water added. Terms: reconstitution, bacteriostatic water, lyophilized.
- Syringe units. A volume: 0.01 mL per unit on a U-100 syringe, 0.025 mL on U-40. Units say nothing about the compound until the concentration is known.
- Cost per draw. Vial price × amount per draw ÷ vial amount, from the price per mg of a current offer. Offers come from the Oxytocin price comparison; certificates from the COA library.
Arithmetic only, on the numbers entered. Amounts from labels or trials are cited references, not recommendations; PeptideTech does not give personal use instructions and does not test products.
short answers
Oxytocin calculator questions
How much bacteriostatic water do I add to Oxytocin 5mg?
What changes the calculated concentration?
What doses of Oxytocin were used in research?
What does Oxytocin cost per mg?
How much Oxytocin is really in the vial?
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