Bishop's weed is used for asthma, chest pain (angina), kidney stones, a skin disorder that causes white patches to develop on the skin (vitiligo), and scaly, itchy skin (psoriasis), but there is no good scientific evidence to support these uses.
Be careful not to confuse bishop's weed (Ammi majus) with its more commonly used relative, khella (Ammi visnaga).
How does it work ?
Uses & Effectiveness
Insufficient Evidence for
When applied to the skin: There isn't enough reliable information to know if bishop's weed is safe. It may cause the skin to become extra sensitive to the sun. This might put you at greater risk for skin cancer. Wear sunblock outside, especially if you are light-skinned.
Special Precautions and Warnings
When applied to the skin: There isn't enough reliable information to know if bishop's weed is safe. It may cause the skin to become extra sensitive to the sun. This might put you at greater risk for skin cancer. Wear sunblock outside, especially if you are light-skinned. Pregnancy: It's LIKELY UNSAFE to use bishop's weed if you are pregnant. It contains a chemical called khellin that can cause the uterus to contract. This might threaten the pregnancy.
Breast-feeding: There isn't enough reliable information to know if bishop's weed is safe to use when breast-feeding. Stay on the safe side and avoid use.
Surgery: Bishop's weed might slow blood clotting. There is a concern that it might increase the risk of bleeding during and after surgery. Stop using bishop's weed at least 2 weeks before a scheduled surgery.
Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates) interacts with BISHOP'S WEED
Some medications are changed and broken down by the liver. Bishop's weed might decrease how quickly the liver breaks down some medications. Taking bishop's weed along with some medications that are broken down by the liver can increase the effects and side effects of some medications. Before taking bishop's weed, talk to your healthcare provider if you are taking any medications that are changed by the liver.
Some medications changed by the liver include lovastatin (Mevacor), ketoconazole (Nizoral), itraconazole (Sporanox), fexofenadine (Allegra), triazolam (Halcion), and many others.
Medications that increase sensitivity to sunlight (Photosensitizing drugs) interacts with BISHOP'S WEED
Some medications can increase sensitivity to sunlight. Bishop's weed might also increase your sensitivity to sunlight. Taking bishop's weed along with medication that increases sensitivity to sunlight could increase the chances of sunburn, blistering, or rashes on areas of skin exposed to sunlight. Be sure to wear sunblock and protective clothing when spending time in the sun.
Some drugs that cause photosensitivity include amitriptyline (Elavil), Ciprofloxacin (Cipro), norfloxacin (Noroxin), lomefloxacin (Maxaquin), ofloxacin (Floxin), levofloxacin (Levaquin), sparfloxacin (Zagam), gatifloxacin (Tequin), moxifloxacin (Avelox), trimethoprim/sulfamethoxazole (Septra), tetracycline, methoxsalen (8-methoxypsoralen, 8-MOP, Oxsoralen), and Trioxsalen (Trisoralen).
Medications that slow blood clotting (Anticoagulant/Antiplatelet drugs) interacts with BISHOP'S WEED
Bishop's weed might slow blood clotting. Taking bishop's weed along with medications that also slow clotting might increase the chances of bruising and bleeding.
Some 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.
Be cautious with this combination
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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.
This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2020.