The recent increase in popularity of NPP can be attributed to the introduction of GP Phenyl 100 by Geneza Pharmaceuticals.
With NPP, you can bypass all that dead time.
19-Nortestosterone based drugs are known to shutdown HPTA very easily - think Trenbolone. Most bodybuilders will use Tren for around 6 weeks at the beginning of a cycle. NPP should be used in a similar manner.
Here's an example of a balanced cycle consisting of NPP
W1-8: Test Prop
It is a good idea to run Test 2 weeks past the NPP, however; NPP can be used as a stand-alone.
Earlier, I compared NPP to Tren. They are similar in some ways but Tren is much more androgenic and stronger in general.
NPP shares some of the same sides associated with Deca (they are after all the same base compound). It should be noted that most of the sides that come with Deca are a result of its long ester. Decanoate ester is very hard to control and Nandrolone side effects are not easily countered like Testosterone related sides (Tamoxifen, Anastrozole, finasteride)
Overall, Nandrolone is a milder compound than Testosterone and is better mg for mg (but that's a matter of opinion)
Nandrolone PhenylProp should be injected at least every 3 days. A typical dose is 350mg-700mg a week for 5-8 weeks.
It stacks very well with Winstrol, Dbol, Test, EQ, Anavar
It does not stack well with Tren and especially Anadrol
Here are some good cycle suggestions:
Fast Acting Classic Test/Deca/Dbol cycle:
W1-6: Dbol 30mg ED
W1-6: NPP 150mg EOD
W1-8: Test Prop 150mg EOD
Highly Anabolic cycles
W1-6: NPP: 200mg E3D
W1-8: Anavar: 30mg ED
W1-6: NPP: 200mg E3D
W1-8: Winny: 50mg ED
A good First cycle:
W1-6: NPP: 150mg E3D
W1-4: Dbol: 25mg ED
(W5-8: Anavar: 30mg ED - optional)
NPP in a typical cycle
W1-10: EQ 400mg a week
W1-9: Test Cyp 600mg a week
W1-8: NPP 200mg E3D
W10-13: Test Prop 150mg EOD
Nandrolone got a very bad rap with many bodybuilders; there is no reason to use Nandrolone Decanoate if NPP available aside from year-round juicer using it for joint pain. Nandrolone is a tremendous bodybuilding drug that can take your physique to a whole different level but many people shy away from it because of what they have heard or experienced with Deca.