Injectable steroids are injected into muscle tissue, not into the veins. They are slowly released from the muscles into the rest of the body, and may be detectable for months after last use. Injectable steroids can be oil-based or water-based. Injectable anabolic steroids which are oil-based have longer half-life than water-based steroids. Both steroid types have much longer half-lives than oral anabolic steroids. And this is proving to be a drawback for injectables as they have high probability of being detected in drug screening since their clearance times tend to be longer than orals. Athletes resolve this problem by using injectable testosterone early in the cycle then switch to orals when approaching the end of the cycle and drug testing is imminent.
Drospirenone is 8–10 times more potent as an antimineralocorticoid relative to spironolactone (3 mg drospirenone is equivalent to about 20–25 mg spironolactone in this regard  ).   It is more potent as an antiandrogen relative to spironolactone also but is less potent relative to cyproterone acetate , having about one-third the potency of this drug.   Progestogenic, antimineralocorticoid, and mild antiandrogenic effects have been observed in humans during treatment with drospirenone at a dosage range of to 4 mg per day orally. 
Because the Nandrolone hormone is so suppressive to natural testosterone production, if the individual experiences sexually related side effects like erectile dysfunction or loss of libido, often they make inappropriate adjustments. Many automatically assume their testosterone dose must be too low. Even if their Deca Durabolin doses are at the low end range, if issues arise they simply increase the testosterone dose. In some cases, this may remedy the problem, but often it only makes it worse. If you’re having issues, the odds are strong your hormone levels are unbalanced. If you’re not controlling estrogen and estrogen levels get too high, you may have sexually related side effects. If you then add more testosterone, thereby adding more aromatase activity, you are only exasperating the problem. Then we have the opposite, you are controlling estrogen but you’re taking it too far. If you completely suppress estrogen through high levels of Aromatase Inhibitor use, you will strongly increase the probability of sexually related side effects.