For the blood levels to be steady, equipoise needs to be administered at least once a week. In men, the common dosage is in the range of 400-600mg while in women it is around 50-150 mg per week.
Thankfully, oregano is an easy herb to dry, and if it's dried and stored properly, it retains its flavor for many months after harvest. For the best dried oregano, head out to the garden in late April or early May.
True oregano grows wild in Mediterranean regions, such as Greece, and it is from this source one can extract the medicinally potent oil of oregano, so try to get the plant, or oil derived from the plant, at your local health food store.