Nandrolone Decanoate mg to mL & Syringe Units
[Anabolic · Compound guide]

Nandrolone Decanoate: mg to mL, syringe units and half-life

Vial strengths · mg to mL · Units chart · Half-life ~8 days

What is nandrolone decanoate?

Nandrolone decanoate is an anabolic steroid, a synthetic derivative of testosterone (19-nortestosterone), attached to a decanoate ester and dissolved in oil for injection into muscle.

Also known as: Deca-Durabolin, Deca.

Common strengths

The US label (Watson Laboratories) lists 100 mg/mL in 2 mL multi-dose vials and 200 mg/mL in 1 mL single-dose vials, in sesame oil. It is already a solution, so there is nothing to mix.

Worked example: mg to mL and syringe units

Nandrolone decanoate is already a solution, so there is no mixing. The only math is turning an amount in mg into a volume. Here it is at 200 mg/mL for 100 mg.

  1. Volume to draw. 100 mg ÷ 200 mg/mL = 0.5 mL
  2. On a U-100 syringe. 0.5 mL × 100 = 50 units
The amount here is an example to show the math, not a recommendation. How much to take is a decision for you and your prescriber. Check the strength printed on your vial; the same amount is a different volume at a different strength.

Volume chart at 200 mg/mL

Amounts are examples for the conversion, not doses.
AmountVolumeU-100 syringe
50 mg0.25 mL25 units
100 mg0.5 mL50 units
150 mg0.75 mL75 units
200 mg1 mL100 units

Approval status and label use

The US label indicates nandrolone decanoate for the anemia of kidney failure, at 50 to 100 mg per week for women and 100 to 200 mg per week for men, by deep injection into muscle, preferably the buttock, stopping if blood counts have not improved within six months. Drugs@FDA lists Deca-Durabolin and every US generic nandrolone decanoate application as discontinued.

Anabolic steroids are Schedule III controlled substances in the US. Use without a prescription is illegal, and the labels warn about liver damage (including peliosis hepatis and liver tumors), cholesterol changes and suppression of the body's own testosterone and sperm production. The label also notes that nandrolone lowers HDL and raises LDL cholesterol, which return to normal after stopping.

In a study of healthy men, nandrolone metabolites stayed detectable in urine for up to 6 months after a single 150 mg injection (Bagchus 2005), which matters for drug-tested sport.

Nandrolone decanoate half-life and time to peak

  • Half-lifeabout 8 days (192 hours)
  • Time to peak (Tmax)about 2.5 days (60 hours)
  • Route in Dose TrackInto muscle (intramuscular)

The US label gives no half-life. In healthy men given a single injection into muscle of 50, 100 or 150 mg (Bagchus 2005), the terminal half-life was 7 to 12 days and blood levels peaked about 30 hours after 50 or 100 mg and 72 hours after 150 mg. Dose Track uses 8 days and 60 hours, inside those ranges. Another study (Minto 1997) found that peak levels depend on injection site and volume, with the highest levels after a 1 mL injection into the buttock.

Numbers shown are the values Dose Track uses, listed only where they agree with the source above. Half-life varies from person to person and with injection site.

How to track nandrolone decanoate in Dose Track

  1. Add nandrolone decanoate from the built-in list. It sits next to everything else you take, so a GLP-1, TRT and a few peptides all live in one log.
  2. Save the vial strength (for example 200 mg/mL). Every amount you log then shows in mL and syringe units.
  3. Log each shot. The app subtracts it from the vial, shows what is left, and warns you before you run out.
  4. Set reminders on your own schedule, whether that is daily, weekly or every few days.
  5. Your log stays on your phone.

Frequently asked questions

How many mL is 100 mg of nandrolone decanoate?+
Divide the amount by the strength on the vial. At 200 mg/mL, 100 mg is 0.5 mL. At a different strength the volume changes, so always check the label. The amount is only an example for the math, not a recommendation.
How many units on an insulin syringe is 100 mg of nandrolone decanoate?+
On a U-100 insulin syringe, 1 mL is 100 units. At 200 mg/mL, 100 mg is 0.5 mL, which is 50 units. Multiply the mL by 100 to get units.
What is the half-life of nandrolone decanoate?+
Dose Track uses a half-life of about 8 days (192 hours) for nandrolone decanoate. The US label gives no half-life. In healthy men given a single injection into muscle of 50, 100 or 150 mg (Bagchus 2005), the terminal half-life was 7 to 12 days and blood levels peaked about 30 hours after 50 or 100 mg and 72 hours after 150 mg. Dose Track uses 8 days and 60 hours, inside those ranges. Another study (Minto 1997) found that peak levels depend on injection site and volume, with the highest levels after a 1 mL injection into the buttock.
Is nandrolone decanoate still sold in the US?+
Drugs@FDA lists Deca-Durabolin and all US generic nandrolone decanoate applications as discontinued. The label on DailyMed (2006 revision) indicated it for the anemia of kidney failure.
How long is nandrolone detectable?+
In a study of healthy men (Bagchus 2005), nandrolone metabolites were detected in urine for at least 33 days after a 50 mg injection in almost everyone, and for up to 6 months after 150 mg in most.
Can I track nandrolone decanoate in Dose Track?+
Yes. Nandrolone decanoate is built into Dose Track. You can log each shot next to your other compounds, save the vial strength so every amount shows in mL and syringe units, see how much is left in the vial, and get reminders. Your log stays on your phone.