Does it really help PMS? I've tried everything from changing my diet to taking Prozac to exercise and zilch seems to help my PMS. I am taking Evening Primrose each day (1,000mg) and that seems to help my sore breasts.
In general, while you may notice an renovation after 1month it usually takes around 3months of continuous usage before it become effective.
It is available in tincture or medication form, the tincture is generally considered better but is more expensive, the capsules are still really important though.
The general recommendation is to help yourself to 800mg twice a day.
I use agnus castus myself and started off taking the recommended dose which be helpful, but i found the herb is only really effectual if i take double the recommended dose at 1600mg twice a day.
Some culture however can take the recommended dose or less and find it completely rids them of PMS - so its adjectives about finding the level right for you.
If I be you I would continue taking Evening Primrose as well, especially as its helping.
Other herb you may like to try for PMS in conjuction near agnus castus and primrose or on their own:
Raspberry Leaf - available in capsule, tinture and tea form
Red Clover - available surrounded by capsule, tinture and tea form
Good luck, hope things improve for you soon.