In 2009, the committee of scientific experts of the Stockholm Convention concluded, "endosulfan is likely, as a result of long range environmental transport, to lead to significant adverse human health and environmental effects such that global action is warranted."  In May 2011, the Stockholm Convention committee approved the recommendation for elimination of production and use of endosulfan and its isomers worldwide. This is, however, subject to certain exemptions. Overall, this will lead to its elimination from the global markets. 
Nandrolone phenylpropionate ( NPP ) ( BAN ) (brand name Durabolin , Fenobolin , numerous others), or nandrolone phenpropionate ( USAN ), also known as nandrolone hydrocinnamate , as well as 19-nortestosterone 17β-phenylpropionate or 17β-(1-oxo-3-phenylpropoxy)estr-4-en-3-one , is a synthetic androgen and anabolic steroid and a nandrolone ester .    It was introduced in 1959.  NPP is marketed in many countries throughout the world, including in the United Kingdom and Canada , and along with nandrolone decanoate , is one of the most widely used nandrolone esters .   Both NPP and nandrolone decanoate are prodrugs of nandrolone.