From the reading I’ve done, you only need about half a milligram (1/2mg) a week to experience all of the anti-prolactin, prosexual, antidepressant, and cognitive effects of Dostinex, but that’s on the very low end of the effectiveness scale. This stuff has an extremely long active life in the body, so once a week dosing is fine…but if it were me, and I were taking this stuff, I’d probably be using about .25mgs-.5mgs twice a week. So if the effects are too much at .5mg 2x/week, instead of trying too nibble off the corner of a tab you can just snap one in half and take it once a week.