Nandrolone Penyl-prop 10mg / ml 10 x 1ml Amps NandroRapid is a short-acting form of nandrolone useful for rapid onset and rapid clearance. With a 4-5 day half-life vs. ND’s 15-18 day half-life, NPP’s onset of action is rapid but injections are required more frequently. With a reduced half-life relative to nandrolone decanoate, nandrolone phenylpropionate (NPP) offers simpler titration to the desired serum levels. This permits practitioners and patients concerned about the 18-day half-life of nandrolone decanoate to evaluate patient tolerance and response over a shorter duration. Nandrolone Phenylpropionate is the same base ligand as decanoate with a vastly shorter half-life from the phenylpropionate ester. Alpha Pharma Nandrolone Phenylpropionate also offers a simple solution for ramping up serum levels during the commencement of therapy versus Nandrolone Decanoate alone. Nandrolone Phenylpropionate is an anabolic steroid. Nandrolone based steroid treatments are frequently used to combat wasting diseases, weight loss due to long term recovery from trauma or chronic infection, treat osteoporosis, and increase comfort through progestin mediated inflammatory response.