While Deca-Durabolin is the most commonly used Nandrolone based steroid it is far from the only one and in recent years the popular Nandrolone-Phenylpropionate has increased in popularity; commonly referred to as NPP and often found under the trade name Durabolin. In many ways NPP is very similar to the original Decanoate version; meaning, the nature of the hormones is for all intense purposes the same with either form. However, when examining the two compounds we have two distinct esters, one with the Decanoate ester while NPP is a Phenylpropionate ester based form. As each one carries its own ester NPP will become active in a noticeable way much faster but its total lasting effect is very short lived compared to the large ester based Nandrolone. Further, because Phenylpropionate is a smaller ester the total mass of the compound will yield more Nandrolone on a per milligram basis. At first glance this would seem to lend to NPP being slightly superior as it becomes active much faster but this isn’t necessarily true; while it will activate much faster, fast is not always beneficial, especially when we consider solidifying gains. However, in the long and short both compounds are very similar but some have said to report less water retention with the NPP form and this is common with smaller ester based steroids.
Nevertheless, real life experiences often show that the original may indeed be slightly more powerful; remember, real life and what’s on paper do not always matchup hand in hand and in the end you will have to find what works best for you.
Hypercalcemia may develop both spontaneously and as a result of androgen therapy in women with disseminated breast carcinoma. If it develops while on this agent, the drug should be discontinued. Caution is required in administering these agents to patients with cardiac, renal or hepatic disease. Cholestatic jaundice is associated with therapeutic use of anabolic and androgenic steroids. Edema may occur occasionally with or without congestive heart failure. Concomitant administration of adrenal steroids or ACTH may add to the edema. In children, anabolic steroid treatment may accelerate bone maturation without producing compensatory gain in linear growth. This adverse effect may result in compromised adult stature. The younger the child the greater the risk of compromising final mature height. The effect on bone maturation should be monitored by assessing bone age of the wrist and hand every six months. This drug has not been shown to be safe and effective for the enhancement of athletic performance. Because of the potential risk of serious adverse health effects, this drug should not be used for such purpose.