^^what he said. In fact I'd do 10mg on day 1-3 then 4-7 20mg then 20 for week two 't getting sides, you could try 30 for the last week. Just pay attention to your body... the back and calf pumps can be killer. If you are a big guy with PH experience, 30 might be fine, if you are smaller or have less experience it may be worth staying at 20