EQ 300

Boldenone Undecylenate Injection

Packaging: 10 mL multidose vial
Strength: 300 mg/mL
Generic name: Boldenone undecylenate — the ingredient associated with the veterinary trade name Equipoise® in FDA animal-drug records. The 300 mg/mL strength appears to be a separate higher-strength presentation from the FDA-listed reference veterinary product.

Product Name & Packaging

EQ 300 – Boldenone Undecylenate Injection
A concentrated injectable anabolic-androgenic steroid preparation presented in a 10 mL oil-based vial for intramuscular administration. In FDA-listed veterinary references, boldenone undecylenate is identified as the active ingredient in Equipoise®, an approved animal drug for horses.

Description

EQ 300 contains boldenone undecylenate, a long-acting esterified anabolic-androgenic steroid. Reference veterinary labeling describes boldenone undecylenate as a long-acting injectable anabolic agent with marked anabolic properties and minimal to low androgenic activity.

Indications

In FDA-approved veterinary labeling, boldenone undecylenate is indicated for horses as an aid in treating debilitated animals when improvement in weight, haircoat, appetite, or general physical condition is desired, and it is described as adjunctive therapy rather than a substitute for good nutrition and supportive care. It is not approved for routine human therapeutic use in the United States.

Dosage & Administration

Route: Intramuscular injection.
Because the product you listed is a non-reference 300 mg/mL presentation, a standard evidence-based dosing schedule cannot be provided here. For medical-reference formatting, the safest catalog wording is:

“Administer only under the direction of a licensed veterinarian or other duly authorized prescriber, in accordance with the manufacturer’s labeling and applicable regulations.”

The FDA-listed veterinary reference product is labeled for intramuscular use in horses only and is restricted to use by or on the order of a licensed veterinarian.

Mechanism of Action

Boldenone undecylenate functions as a long-acting androgen/anabolic steroid ester. After injection, it serves as a depot form that releases active boldenone over time. Pharmacology references describe boldenone as acting through the androgen receptor, influencing transcriptional pathways associated with anabolic activity, including effects on protein synthesis, nitrogen retention, appetite, and erythropoietic signaling.

Precautions

Use only with appropriate professional oversight. Veterinary labeling warns that the reference product is for horses only and should not be used in horses intended for human consumption. It also states that, in the absence of data, it should not be used in stallions or pregnant mares. As with other anabolic-androgenic steroids, use requires careful assessment of benefit versus risk and regulatory status in the intended market.

Side Effects

Reference veterinary labeling reports possible androgenic effects, including over-aggressiveness in some animals. Broader pharmacology sources describe boldenone as primarily anabolic with lower androgenic potency, but androgen-related adverse effects may still occur depending on dose, duration, and patient sensitivity.

Storage

Store at room temperature. Avoid freezing.
Inspect the solution before use and follow the manufacturer’s storage instructions for the specific finished product. The FDA-referenced veterinary label for Equipoise states: store at room temperature; avoid freezing.