evening primrose oil

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Charles Patrick Davis, MD, PhD
    Charles Patrick Davis, MD, PhD

    Charles Patrick Davis, MD, PhD

    Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.

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GENERIC NAME: Oenothera

BRAND NAME: Evening primrose oil, Fever plant, Sun drops

DRUG CLASS AND MECHANISM: Oenothera (Evening Primrose) is a natural herbal supplement derived from the seed of the evening primrose plant (there are about 145 different species in the genus Oenothera). Oenothera plants contain fatty acids that are metabolized to prostaglandins which have anti-inflammatory and pain relieving effects.

PRESCRIPTION: No

GENERIC AVAILABLE: Yes

PREPARATIONS: Oenothera is available in capsules, softgels, and liquid extract forms. Concentration of Oenothera may vary from product-to-product due to multiple manufacturers producing various products.

STORAGE: Because multiple manufacturers make different forms of Oenothera, storage requirements may vary based on individual manufacturer practices.

PRESCRIBED FOR: Oenothera is used for breast pain, osteoporosis, premenstrual syndrome, eczema, psoriasis, acne, high cholesterol, leg pain, rheumatoid arthritis, and fatigue.

DOSING (dosing recommmendations may vary with supplier):

Breast pain: Take 3 to 4 g by mouth once daily.

Eczema: Take 4 to 6 g by mouth once daily.

Medically Reviewed by a Doctor on 10/9/2014

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