Driada Medical Andriolos 250 mg/ml (Testosterone Undecanoate) Ampoules 10 x 1ml
Driada Medical Andriolos 250 mg/ml is a testosterone undecanoate injection supplied as ten sterile 1 ml ampoules per box. Because it delivers a slow-release ester of testosterone, this product has become a popular choice for research into long-acting androgen delivery. Each ampoule contains 250 mg of testosterone undecanoate in a clear, oil-based carrier, giving a total of 2,500 mg of active compound per pack. It is manufactured by Driada Medical, a brand widely recognised for consistent dosing and clean presentation.
The testosterone undecanoate 250 mg/ml format is often studied for its extended half-life, which is considerably longer than shorter esters such as propionate or acetate. As a result, researchers frequently choose it when they want to model stable hormone levels over an extended period rather than sharp peaks and troughs. If your work focuses on androgen pharmacology, this long-ester preparation is a logical addition to your reference library.
Why Researchers Choose Andriolos 250
Testosterone undecanoate 250 mg/ml stands out for several practical reasons. The 1 ml ampoule size makes measurement straightforward, and the 10-ampoule box offers a convenient supply for longer studies. Furthermore, the oil-based vehicle is designed to support gradual absorption after intramuscular administration, which helps explain the compound’s reputation for sustained action.
- Long-acting ester: supports research into extended-release androgen delivery.
- Accurate dosing: 250 mg per 1 ml ampoule, clearly labelled.
- Convenient pack size: 10 ampoules per box, ideal for multi-week protocols.
- Trusted manufacturer: produced by Driada Medical, a well-known name in the research market.
- Sterile presentation: sealed glass ampoules protect the solution before use.
Testosterone Undecanoate: How It Works
Testosterone undecanoate is an esterified form of testosterone. Once administered, esterase enzymes gradually cleave the undecanoate chain, releasing free testosterone into the bloodstream. This slow cleavage is the reason the compound is associated with a longer duration of action than many other testosterone esters. According to Wikipedia’s overview of testosterone undecanoate, the ester was developed specifically to improve the pharmacokinetic profile of testosterone therapy.
For laboratory research, this gradual release is useful because it allows investigators to study receptor interactions and metabolic effects under relatively stable conditions. Instead of repeatedly dosing a short-ester compound, a single administration of testosterone undecanoate 250 mg/ml can maintain measurable levels for a considerably longer window. That makes it a valuable tool for studies that require consistency over time.
Key Specifications at a Glance
- Active substance: Testosterone undecanoate
- Concentration: 250 mg/ml
- Presentation: 10 x 1 ml glass ampoules
- Total content: 2,500 mg per box
- Carrier: Sterile oil-based solution
- Manufacturer: Driada Medical
- Storage: Keep in a cool, dark place, away from direct sunlight
Handling and Storage Best Practices
Correct handling protects both the product and your research. Store the box at room temperature, ideally between 15°C and 25°C, and keep it out of direct sunlight. Before use, inspect each ampoule for cracks, cloudiness or discolouration. In addition, always use a clean alcohol swab on the ampoule neck before opening it, and use a fresh sterile syringe for every draw. Because glass ampoules do not reseal, plan to use the full contents of an opened ampoule in a single session.
If you are building a broader research protocol, you may find it useful to review our post cycle therapy research options and our beginner cycle reference pack. These pages can help you structure a balanced study design around long-ester androgens.
Who This Product Is For
This product is intended strictly for laboratory and research use. It is not a medicine, and it is not intended for human consumption. Researchers who study androgen receptor biology, hormone replacement models or long-acting ester pharmacokinetics will find the 250 mg/ml concentration particularly practical. Equally, those comparing different esters may want to pair it with shorter-acting references to observe how release rates differ.
Before ordering, confirm that you have the appropriate qualifications and facilities to handle injectable research compounds. You can read more about safe laboratory practice in this guidance from the UK Health and Safety Executive. Responsible handling is essential for reliable results and personal safety.
Frequently Asked Questions
What is the difference between testosterone undecanoate and other esters?
The main difference is the length of the ester chain. Undecanoate is a long-chain ester, so it is released more slowly than propionate, acetate or enanthate. This results in a longer duration of action in research settings.
How many ampoules are in one box?
Each box of Driada Medical Andriolos contains 10 sterile 1 ml ampoules. Every ampoule provides 250 mg of testosterone undecanoate.
How should I store the ampoules?
Keep them at room temperature, away from sunlight and moisture. Do not freeze the product, as low temperatures can affect the oil carrier.
Do you offer fast UK delivery?
Yes. We aim to dispatch orders quickly, and many UK customers receive their items on the next working day. Browse our same-day and next-day delivery options for more details.
Is this product suitable for human use?
No. It is sold exclusively for research and laboratory purposes. It must not be used for human consumption or veterinary application.
Why Buy Testosterone Undecanoate 250 mg/ml from UK Steroid Supplier?
We understand that researchers value consistency, discretion and speed. That is why we stock well-known brands such as Driada Medical and pack every order securely. In addition, our team is on hand to answer product questions before you buy. Whether you are comparing long-ester androgens or restocking a trusted reference, we aim to make the process simple.
Looking for related research materials? You might also explore our advanced synergy stack or our methenolone enanthate reference vial. These products are frequently studied alongside long-acting testosterone esters.
Order Your Andriolos 250 Ampoules Today
If you need a reliable, long-acting testosterone undecanoate 250 mg/ml preparation for your research, Driada Medical Andriolos is a strong choice. Each box gives you ten accurately dosed ampoules, backed by a manufacturer known for quality control. Place your order now and take advantage of our fast UK dispatch. For further reading on steroid chemistry and ester design, see this peer-reviewed research available via PubMed.
Order now while stock is available.





Reviews
There are no reviews yet.