Thank you for your post asking if it is safe to take omega 3 and magnesium bisglycinate whilst taking tamoxifen.
Many people ask about vitamin and herb supplements as they want to do as much as possible to be healthy. There is often the belief that vitamins and herbs are safe as they are considered natural. However, herbal treatments don’t have to comply with the same regulations or rigorous testing that conventional medicines do. There is much we don’t know about supplements and herbal remedies. For many products there is a lack of research to support their use, and some can interfere with conventional medicines including cancer treatments.
You can search this American website here for information about individual herbs and vitamins. Each has sections on existing evidence and what known interaction there is with other medications, including information about drug interactions with omega 3 and magnesium.
You can also search herbal products and supplements on the European website Complementary and Alternative Medicine for cancer and on the American website Medicine Plus
If you take prescribed medicine like tamoxifen or over the counter medicines, speak to your treatment team, GP, or a pharmacist before taking any supplements. They can advise about potential interactions and doses.
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