Nebido is a form of injectable testosterone used mostly in Europe. It has a very long action and is therefore difficult to use by bodybuilders and other athletes.
Nebido is a new testosterone-based preparation, being introduced to the European market at the end of 2004. It uses long-acting testosterone as injections sold in 100 mg/ml concentrations.
It has been conceived as a response to testosterone cipionate or enanthate. In the clinical environment, this product is very appealing to patients, and its injection is very rare. For example, for a first time, a loading period of 1000 mg (4 ml) is given once every 6-8 weeks. Then testosterone levels in the blood can be maintained with an injection every 12 weeks, which would mean only 4 injections per year. This is a big step forward from enanthate and cipionate, which would require at least 22 injections per year.
But for bodybuilders, the advantage of very slow action is not noticeable here, using overdoses, not normal doses. This means steroid injection at a more regular rate, which would make the comfort factor disappear. This would mean injecting 4 ml of Nebido once every 2-4 weeks for a mean weekly dose of 250-500 mg. At these doses, gains and side effects are expected as with other testosterone esters (enanthate, cypionate, etc.). The only difference is less frequent injections, but not much.
Nebido’s action will be slower, so it’s a good idea to start the cycle with enamel, propionate or propionate testosterone to make the effects faster. Nebido has begun to spread to the European Union and can be found in many pharmacies.
It is most often used by professional bodybuilders as the link between heavier steroid cycles. Such bodybuilders take steroids throughout the year, with only short breaks between cycles. In these breaks many young people use Nebido to keep the levels of testosterone elevated.
The side effects are the same as any testosterone-based preparation: gynecomastia, water retention, acne, oily skin, increased aggressiveness, prostate enlargement, cavities (in those predisposed to genetics), and negative cholesterol. Some of these unwanted effects may appear later, due to the long undecanoate ester.