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Evening Primrose Oil
What is it? Overview Usage Side Effects and Warnings

What is Evening Primrose Oil?

Evening primrose is a wildflower that that has been used as to treat many health problems for many years. This flower is often used to relieve abdominal discomfort as well as respiratory infections. Primrose contains essential fatty acids that may increase cervical mucus, hereby enhancing fertility in women.

Evening primrose oil is generally well tolerated when taken in recommended dosages. Incidence of side effects is low.

Side Effects

The reported side effects that occur with evening primrose oil use include:

  • nausea,
  • headache
  • indigestion
  • stomach pain
  • soft stools
  • Stomach discomfort and loose stools may be indications that the dosage is too high. If any of the side effects persist or worsen, contact your health care provider immediately.

If you develop signs of an allergic reaction such as hives, difficulty breathing, swelling of your face, lips, tongue, or throat, you should stop taking evening primrose and seek emergency care.


Evening primrose oil should not be taken by patients who have allergies to its components. If any of...