That must just be a writing mistake on the website.
It is a testosterone product NOT methenolone (which would be primo).
I do not have any personal experience with this product yet.
But guys on various boards seem to like using it once a week at about 1cc (250 mg).
This seems high compared to shorter esters, but people have claimed that it takes more to get to their desired level because more of the compound's molecular mass is the longer ester -- so a little more overall compound is needed to yield more testosterone.
Also, because it is such a long ester, I think someone could easily run it at 2cc (500 mg) every-other-week and still have relatively stable levels.
In theory it can be taken far less often -- but until I have personal experience with that and can confirm that hormone levels are still stable, I cannot recommend such protocols.
The post quoted below has the information from the "Anabolics" book: