Overview
Drostanolone propionate was marketed as Masteron for advanced breast cancer in women. It is a modified form of DHT with a short ester that clears in two to three days.
This listing is Zionova Masteron Propionate 100mg/ml (100 mg/ml · 10 ml vial), photographed as we ship it and priced in Canadian dollars.
How it works
Drostanolone binds androgen receptors, cannot be converted into estradiol, and has mild anti-estrogenic effects in some tissues, which is why it was used against hormone-sensitive breast tumours. It suppresses natural testosterone in men.
Clinical reference
Historic Masteron labelling for metastatic breast cancer in postmenopausal women used 100 mg three times a week. It is no longer marketed in Canada.
Reference information from product labels and clinical literature only. It is not a recommendation or dosing advice for you; any use should be set and monitored by a doctor.
Measuring calculator
Type the amount from your prescription or clinician; the calculator only converts it. It does not suggest how much to take.
Label strength: 100 mg/ml in a 10 ml vial.
Combinations and interactions
- Same hormone as drostanolone enanthate with a faster-clearing ester.
- As a DHT derivative it adds to scalp hair loss and acne risk from other androgens.
- Interactions: may change the effect of warfarin.
Risks and side effects
- Hair loss. DHT-derived steroids speed up male-pattern baldness in prone people.
- Lipids. HDL cholesterol falls.
- Virilisation in women. Voice deepening and facial hair can be permanent.
- Suppression. Natural testosterone production stops during use.
Do not use it if you are under 18, pregnant, have prostate cancer or are prone to severe hair loss.
Bloodwork to discuss with your doctor
- Lipid panel
- Testosterone
- Hematocrit
- Liver enzymes
Masteron Propionate 100mg/ml is an oil made for deep intramuscular injection. Our injectables use MCT oil, which is thinner than cottonseed or grapeseed oil and passes more easily through a 25G needle. These are the standard nursing sites, with what to look for at each. Finding it. Place the heel of your opposite hand on the bony bump at the top of the thigh, point your index finger at the front hip bone and fan your middle finger back along the hip crest. The target is the centre of that V. Why it is used. Thick muscle with a thin fat layer and no major nerves or vessels in the target zone. Nursing references now rank it first for adults. Watch for. Finding the landmarks on yourself takes practice; a mirror or a helper makes the first few easier. Nursing reference volume: Up to 3 ml Finding it. Divide the thigh from hip to knee into thirds and use the middle third on the outer front surface. Why it is used. Easy to see and reach while seated, with plenty of muscle. Watch for. Keep to the outer side: the femoral nerve and vessels run along the inner thigh. Soreness when walking for a day is common. Nursing reference volume: Up to 3 ml Finding it. Locate the bony point of the shoulder and move two to three finger widths down to the thickest part of the muscle on the outside of the arm. Why it is used. Quick to reach and good for small volumes. Watch for. It is a small muscle. Stay high: the axillary and radial nerves lie lower on the arm. Nursing reference volume: Up to 1 ml Finding it. The traditional upper outer quarter of the buttock. Why it is used. A large, familiar muscle still shown in older guides. Watch for. The sciatic nerve and a major artery are nearby and the fat layer is thicker. Most current guidance prefers the ventrogluteal site. Nursing reference volume: Up to 3 ml Every time: wash your hands, swab the stopper and skin with alcohol, use a new sterile needle and syringe and never share. See a doctor for spreading redness, heat, swelling, fever or numbness. This is general reference information from standard injection guidance, not medical advice. Peer-reviewed papers behind the facts on this page, each linked to its PubMed record.Injection sites
1VentroglutealSide of the hip · Gluteus mediusIM
2Vastus lateralisOuter thigh · QuadricepsIM
3DeltoidShoulder · DeltoidIM
!DorsoglutealUpper outer buttock · Gluteus maximusIM
Chemistry
Drostanolone propionate
Research
Storage and handling
Keep the vial at room temperature (15 to 25 °C), out of direct light. Do not refrigerate or freeze it: cold can make the hormone crystallise. Wipe the rubber stopper with alcohol before each draw and use a fresh needle every time.
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 itself an offence, but importing, exporting, producing or selling one without authorisation is. Anabolic agents are prohibited in tested sport. Laws change, so check the current rules for your situation.
FAQ
Does Masteron convert to estrogen?
No. Drostanolone cannot aromatise.
Why was it used for breast cancer?
Its anti-estrogenic action slowed some hormone-sensitive tumours.
How often is propionate injected?
Its short ester clears within a few days.
How fast will it reach me?
Orders leave Vancouver by Canada Post Xpresspost and the tracking number arrives within 72 hours of your e-Transfer. Most provinces receive parcels 1 to 6 business days after that; the territories can take up to 10. Xpresspost is free on orders over $300, and a lost or seized parcel is reshipped at no charge.
Reviews
5.0 out of 5 from 1 review by customers.
1 review for Zionova Masteron Propionate 100mg/ml – Cutting & Pre-Contest Steroid
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Kassidy Hunter (verified owner) –
Steroids Canada (store manager) –
Thanks, Kassidy, for rating the Masteron Propionate.