Evening Primrose Oil

Evening Primrose Oil
Evening Primrose Oil


There’s not enough evidence to support the use of evening primrose oil for any health condition.

The oil, taken orally (by mouth), has not been shown to be helpful for relieving symptoms of atopic dermatitis.

Studies for breast pain have not found it to be more effective than a placebo (an inactive substance).

There’s insufficient evidence to show whether it is helpful for other conditions, such as PMS and menopause symptoms.

Side Effects Of Evening Primrose Oil

The oil is probably safe for most adults. Less is known about its safety for children.

It may be safe for use during pregnancy and while breastfeeding, but the evidence is not conclusive.

Evening primrose oil is generally well tolerated. The most common side effects are temporary gastrointestinal symptoms such as abdominal pain, fullness, or nausea.

It may increase the effects of the HIV medicine lopinavir. As with all dietary supplements, talk with your health care provider before taking the oil if you are taking any kind of medicine.


Take charge of your health—talk with your health care providers about any complementary health approaches you use. Together, you can make shared, well-informed decisions.


All information has been provided courtesy of MedLinePlus from the National Library of Medicine and from the FDA.