You will need to start at a dose and then recheck values say after a month and adjust as necessary, everyone reacts to Adex differently.
Maybe start at 1mg weekly (divided doses throughout the week) and retest after a month or so and adjust dose accordingly.
The recommended value is 22 around here so after a month use the formula that is given on this site.
After a month on adex at 1mg a week your E2 value comes back as 30 (example)
1.0 * (30/22) = new dose in mg.