T as male contraceptive

What is the dose/schedule effective results for Testosterone use for male contraception ?

I thought I read that 200mg of Nandrolone per week was effective as a male contraceptive.

The WHO (WorldHealthOrganization) used 250mg Test Enanthate per week in it`s studies.
And yes,there was some study that showed 200mg of nandrolone to cause azoospermia after 3 weeks.