Results
The effects of evening primrose oil were significantly greater than that of the placebo, which had no effect at all for either group.
Evening primrose oil proved to be equally effective for both the cyclical and non-cyclical patients.
Evening primrose oil had a progressive effect, being much greater at the end of the trial (2-3 months) than at the first month. The effects were greater still after 4-6 months. The fact that evening primrose oil does not produce a rapid result is not surprising. After all, an effect related to a change in the composition of cell membranes cannot be expected to take place rapidly.

Dose
In order to obtain a response to treatment, it is important to start with the full dose (8x500mg per day) and to continue treatment for the recommended 3-6 month period.
After 3-6 months, treatment may be stopped. The condition will then take 2-12 months to revert to its previous symptomatic level.
A maintenance dose of 2-4 x500mg capsules per day may keep symptoms under control indefinitely.

*11/60/5*
WOMEN’S HEALTH