It's an individual thing. I used .25ml of liquid prami twice a week on 600mg npp and 800mg test. I increased it to three times a week about half way through when I noticed a tender nipple (no lump). You can fix issues quicker with npp though. I'm familiar with prolactin sides so I went by feel. Best way would be to get blood work that includes prolactin to make sure you are good.
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