Leaves, stem bark, flowers, seed oil, root.
A sedative and an astringent effects are present in various parts of the evening primrose herb, such as the flowers, the leaves, and the bark on the stem. Disorders such as the whooping cough have been treated using all three parts of the herb and these are normally prescribed by many traditional herbalists in treating this disorder. Conditions such as digestive problems and asthma can also be treated using the herbal remedies made from the evening primrose plant. The evening primrose herb is also used in the preparation of an herbal poultice which is used extensively in the treatment and easing of the discomfort related to rheumatic disorders affecting patients. External skin problems such as eczema, and some other skin conditions with symptomatic itching, and problems such as breast tenderness can be treated using topical application of the herbal evening primrose oil. Elevations in the blood pressure of the patient can be treated by making the person consume the herbal evening primrose oil, at the same time, this oil is also used in the prevention of clumping in the platelets within the blood during internal hemorrhage and injuries. Premenstrual disorders are also normally treated using this herbal oil these days, and the oil is also used in the treatment of tension and bloating in the abdominal region that occurs in women before menstruation. Consuming the oil of the evening primrose may also be of some benefit in individuals affected by severe disorders such as the multiple sclerosis, the oil can also be of benefit in the treatment of rheumatoid arthritis, in treating intermittent claudication, which is a cramp like pain that affects the leg of the patients, circulatory disorders can also be treated using the oil of the evening primrose.
As previously mentioned, the evening primrose is a plant which was native to parts of the North American continent, however, in the present, most temperate regions around the world have established populations of the evening primrose due to transplantation over the years. The herb typically inhabits dunes and sandy soils in many open areas and waste grounds around the world - it is a very hardy herb and can grow well under adverse climactic conditions. Commercial cultivation of the evening primrose for its seed oil is also carried out in a substantial manner in many temperate regions of the world.
Many of the essential fatty acids are found in large quantities in the seed oil of the evening primrose herb, the proportions of the two most notable essential fatty acids include about seventy percent cis-linoleic acid and about nine percent of the fatty acid cis-gamma-linolenic acid. The presence of the gamma-linolenic acid - the GLA in short, which is a major precursor for the formation of the prostaglandin E1 in the human body, is the major reason for the beneficial actions attributed to the seed oil of the evening primrose plant. The vitamin E is often added to the seed oil in order to prevent oxidation of the important metabolic compound during storage and processing of the oil.
Dosage requirements differ, but for treatment purposes, there are 500 mg evening primrose oil capsules available at many health food stores. The maximum adult dose is normally about four g of the oil daily, while the majority of the clinical trials typically use doses of one or two capsules, taken twice or thrice every day, during the treatment regimen. Results can be expected to take three months to appear during the treatment of some conditions using the herbal evening primrose oil.
As has been mentioned before, all schizophrenic patients already on phenothiazine medications such as Compazine -marketed as prochlorperazine, Mellaril - marketed as thioridazine, Sparine - trade name promazine, Stelazine - marketed as trifluoperazine, Thorazine - marketed as chlorpromazine and Trilafon - trade name perphenazine are advised not to use the oil of the evening primrose for any purpose, this also includes avoiding GLA supplements - side effects are known to occur when the oil is used concurrently with these drugs. The main side effect for the patient using this combination being the higher risk of epileptic seizure affecting him or her when using the drugs and the herbal oil are consumed at the same time. The oil of the evening primrose must also be avoided by people taking some other types of medications, including Wellbutrin and other anti-depressants; these may interact with the oil and lead to the lowering in the seizure threshold for the person concerned.