No it is not correct.In fact it has nothing to do with prolactin at all.
It is suspected that tren is a progestin, acting on the progesterone receptor.
Nolvadex upregulates the Progesterone recptor. Someone read this and didnt read the fine print and panicked saying oh that much progesterone will cause problems blah blah blah.
Here is the thing, while nolva DOES upregulate thr PGR receptor, the upregulation is temporary lasting only 2 weeks. Now for the important part, after 2 weeks of administration nolva then actually DOWNREGULATES the progesterone receptor.
There is no issue with running tren or deca with nolvadex or using nolvadex in a pct following a cycle that included tren or deca.
Hope that helps to answer your question.