2D structure of nandrolone phenylpropionate

2D structure · PubChem CID 229455Nandrolone phenylpropionate

Genetix PharmaInjectable

Npp Genetix Pharma

Nandrolone phenylpropionate · Injectable (oil)

5.0 from 7 reviews

$96CAD

In stock, ships from Vancouver

Strength100 mg/ml

Pack10 ml vial

Total per order1,000 mg

Half-life≈ 2-3 days

Add $204 more for free Xpresspost.

You will need to inject it

Syringes Pack of 10 - 25 Gauge - 3ml$18Add

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What most customers add with this:

Arimidex Genetix Pharma$120.00 · Keeps estrogen in check

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Zionova Clomid$114.00 · For after your cycle

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Delivery guaranteeLost or seized: reshipped free
Tracking in 72 hPacked in Vancouver
Interace-TransferFrom any Canadian bank
Plain packagingNo product names outside

Overview

Nandrolone phenylpropionate is nandrolone with a short phenylpropionate ester, clearing in a few days rather than weeks.

How it works

It has the same action as nandrolone decanoate, strong androgen-receptor binding in muscle and progesterone-receptor activity, but the shorter ester means faster rises and falls.

Chemistry

From PubChem, the US National Library of Medicine’s chemistry database.

Nandrolone phenylpropionate

Formula: C₂₇H₃₄O₃
Molecular weight: 406.6 g/mol
CAS: 62-90-8
PubChem CID: 229455 ↗

Clinical reference

It is no longer sold as a medicine in Canada or the US. Older labels used 25 to 100 mg once a week, mainly for advanced breast cancer in women.

Label and guideline amounts are shown for reference only. They are not a recommendation, and we never give cycle or performance amounts. Any use belongs under a doctor’s care, with bloodwork.

Measuring calculator

Converts an amount you enter into what to measure. It does not suggest an amount.

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Strength used: 100 mg/ml

Injection sites

Npp is an oil for intramuscular (IM) injection: deep into a large muscle, never under the skin or into a vein. Our injectables are made in MCT oil, which is thinner than the seed oils many labs use, so it draws and flows through a 25G needle more easily.

Commonly usedOlder site, use cautionAnatomy drawing: OpenStax & Tomáš Kebert, umimeto.org, CC BY-SA 4.0, recoloured.

Volume per site: Up to 3 ml
Needle: 25 to 38 mm, 22 to 25G

**Locating the ventrogluteal site**Concordia University Ann Arbor · School of Nursing · YouTube, plays here when clicked

Finding it. Place the heel of your hand on the bony bump at the top of the outer thigh, point your index finger at the front hip bone and spread your middle finger back along the hip crest. Inject in the centre of the V between the two fingers.

Why it is used. Current nursing guidance favours it for adults: a thick muscle under a thin, predictable fat layer, with no large nerves or vessels in the target area.

Watch out. The landmarks take practice; use a mirror or a helper the first few times.

Why these sites for Npp

Intramuscular (IM)

Largest muscles first. Short esters and high-strength blends are the oils most often reported to sting. The ventrogluteal and outer thigh handle them best; keep the deltoid for small volumes.
Rotate widely. Short esters are injected more often, so spread injections across more sites, left and right.
Warm the vial in your hands. Rolling the vial for a minute brings the oil to body temperature so it flows easily. Never heat it in water or a microwave.

Every time: wash your hands, wipe the vial stopper and skin with alcohol, use a new sterile needle and syringe, and never share. See a doctor for spreading redness, heat, swelling, pus, fever or numbness. This is general guidance from standard nursing practice, not medical advice; a pharmacist or nurse can show you in person.

Combinations and interactions

Prescribed or used alongside

Testosterone is usually present because nandrolone suppresses natural testosterone.

Drug interactions

Anticoagulants: INR can rise.

Risks and bloodwork

Libido and erections

Low testosterone and prolactin effects can reduce sexual function.

Shutdown

Natural production stops.

Lipids

HDL falls.

Long detection window

Nandrolone metabolites remain detectable for months.

Bloodwork doctors check

Complete blood count (hematocrit and hemoglobin)
Lipid panel (HDL, LDL, triglycerides)
Liver enzymes (ALT, AST)
Total and free testosterone, estradiol
LH and FSH
PSA for men over 40
Blood pressure

Not for

People under 18, anyone pregnant or breastfeeding, and anyone with prostate or breast cancer, heart disease, uncontrolled blood pressure, a high red blood cell count, untreated sleep apnea, or liver or kidney disease.

Canadian legal status

Anabolic steroids are listed in Schedule IV of the Controlled Drugs and Substances Act. Simple possession of a Schedule IV substance is not an offence under the Act; selling, importing or exporting one without authorisation is. Sports bodies that follow the World Anti-Doping Code ban them in and out of competition. This is general information, not legal advice.

References

Androgens for the anaemia of chronic kidney disease in adultsYang Q et al. · Cochrane Database Syst Rev, 2014 · PMID 25300168
A randomized, placebo-controlled trial of nandrolone decanoate in human immunodeficiency virus-infected men with mild to moderate weight loss with recombinant human growth hormone as active reference treatmentStorer TW et al. · J Clin Endocrinol Metab, 2005 · PMID 15914526
Anabolic-androgenic steroids: How do they work and what are the risks?Bond P et al. · Front Endocrinol (Lausanne), 2022 · PMID 36644692

Reviews

5.07 reviews from customers

Reviews are published after a quick check. Only customers who bought this product can review it.

Brian B.Verified buyerMay 19, 2025

Hello npp