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Evening Primrose OilNatural health supplements sometimes have unexpected side effects or interactions with medication that can lead to adverse reactions that are sometimes life threatening. The following is a list of cautions that you should be aware of before using Evening Primrose Oil (Oenothera biennis). These are referred to as drug/herb interactions.
Warning 1 - Contraindications: This product is not recommended for use during pregnancy. Although Evening Primrose Oil passes into breast milk, it is unlikely to harm a nursing infant but check with your doctor first.
Warning 2 - Phenothiazines: The use of Evening Primrose Oil while taking phenothiazines may cause seizures. Examples of phenothiazines include:
Warning 4 - Seizures: There is a concern that this product may increase the risk of seizures in those with a history of seizures.
Warning 5 - Surgery: Because of the chance of increased bleeding during or after surgery it is recommended to stop using Evening Primrose Oil 2 weeks before a scheduled surgery. This product is suspected to interact with anesthesia, which may increase the risk of seizure.
Warning 6 - Anticoagulants/Antiplatelets: Using Evening Primrose Oil may slow the clotting of blood, which increases the chances of bruising and bleeding. Check with your doctor before using Evening Primrose Oil if you take medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.
Warning 7 - Phentermine: Using Evening Primrose Oil with the diet drug Phentermine may increase the risk of seizures.
Used as a natural health remedy 1: Evening Primrose Oil is one of the safest sources of GLA, an essential fatty acid thought to have anti-inflammatory and other healing properties. This natural supplement is used internally (in capsules) for breast pain although it may not be effective for long-term severe breast pain.
Used as a natural health remedy 2: When combined with calcium and fish oil supplements Evening Primrose Oil is possibly effective for osteoporosis.
Evening Primrose Oil can help with the symptoms of menopause; fatigue, joint pain, alopecia (hair loss) and dry skin.
Used as a natural health remedy 3: Evening Primrose Oil is also used to relieve the symptoms of hyperlipidemia (excess lipids in the blood), atopic eczema, and psoriasis.
Although Evening Primrose Oil is used for the following conditions and diseases, there is not enough evidence to support its effectiveness.
Evening Primrose Oil Side EffectsThis supplement is generally considered to be safe but it may also cause mild side effects including:
As with any herb, a serious allergic reaction is possible. Seek immediate medical attention if you notice any symptoms of a serious allergic reaction. These may include a rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, or trouble breathing.Return to the Herb List.
For questions and answers about the side effects of herbs see the Herb Forum
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This consumer advocate website is protected by copyright © 2011-2012 Askdocweb, Inc. All Rights Reserved. This is a layman's report on Evening Primrose oil and is not intended to replace discussions with a health care provider. Do not use the information on this forum as a substitute for your doctor's advice. Always consult your doctor before taking any drug and follow your doctor's directions. Source material: Food and Drug Administration, Medline, Physician's Desk Reference, and the largest community of people in the world, those who are concerned about side effects and healthcare.