SUST 250

Generic Name: Testosterone Propionate / Testosterone Phenylpropionate / Testosterone Isocaproate / Testosterone Decanoate
Strength & Packaging: 10 mL / 250 mg/mL multidose vial
Based on standard Sustanon 250 reference labeling, this is a blended testosterone injection containing 30 mg testosterone propionate, 60 mg testosterone phenylpropionate, 60 mg testosterone isocaproate, and 100 mg testosterone decanoate per 1 mL. Official product references describe it as a clear, pale yellow oily solution for deep intramuscular injection.

Product Name & Packaging

SUST 250 (Multi-Ester Testosterone Injection)
A sterile androgen formulation supplied here as a 10 mL multidose vial at 250 mg/mL, based on the packaging details you provided. In official reference labeling, the blend is defined per 1 mL and combines four testosterone esters with differing durations of action.

Description

SUST 250 is a multi-ester testosterone preparation designed to provide a staged release of testosterone after intramuscular administration. The four ester components are hydrolyzed to natural testosterone after entering the circulation, supporting sustained androgen activity over time.

Indications

Standard reference labeling indicates this formulation for testosterone replacement therapy in male hypogonadism, when testosterone deficiency has been confirmed by clinical features and biochemical testing.

Dosage & Administration

For deep intramuscular use only. Reference labeling states that dosing should be individualized according to patient response, and that in adults, one injection of 1 mL every 3 weeks is usually adequate. Because your product presentation is listed as a 10 mL vial, dispensing and administration should follow the prescriber’s instructions and the locally approved product labeling.

Mechanism of Action

The formulation contains four testosterone esters with different durations of action. After administration, these esters are converted to testosterone, increasing circulating testosterone and related androgenic activity. Reference data show treatment raises testosterone levels and may improve testosterone-deficiency symptoms, sexual function, lean body mass, and bone mineral density in hypogonadal men.

Precautions

Use only under appropriate medical supervision. Reference labeling lists contraindications or major precautions including known or suspected prostate or breast cancer, pregnancy, breastfeeding, and hypersensitivity to excipients such as arachis oil. Ongoing monitoring is recommended for testosterone levels, PSA, hematocrit, hemoglobin, and in long-term therapy, liver function and lipid profile. Caution is advised in patients with cardiac, hepatic, renal, hypertensive, migraine, or seizure-related conditions, and testosterone misuse can lead to serious cardiovascular, hepatic, and psychiatric harm.

Side Effects

Adverse effects reported with androgen therapy and Sustanon 250 include injection-site reactions, weight gain, polycythemia, fluid retention, mood changes, altered libido, hypertension, nausea, acne, pruritus, myalgia, gynecomastia, oligospermia, priapism, increased PSA, and increases in hematocrit, hemoglobin, and red blood cell count. Rare pulmonary oil microembolism has also been reported after oily intramuscular injections.

Storage

Store below 30°C. Do not refrigerate or freeze. Keep the product in the original package protected from light.