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Doctor insights on: Thyroxine And Food Interactions

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Will I be able to eat foods with added calcium, iron and magnesium if I'm on synthroid (thyroxine)?

Will I be able to eat foods with added calcium, iron and magnesium if I'm on synthroid (thyroxine)?

Food and thyroid...: You can eat any kind of food if taking Synthroid (thyroxine) as long as you take this tablet away from all food and all medications. I highly recommend for it to be taken in the middle of the night so you are sure nothing interferes with its absoprtion. Once absobed - typically in one hour - then any food will not affect this medication. ...Read more

Dr. Heidi Fowler
3,408 doctors shared insights

Nutrition (Definition)

Nutrition is the synergistic combination of nutrients found in food and water that allows the human body to perform all essential ...Read more


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I take Synthroid (thyroxine) in am before breakfast. Are there any foods I should be avoiding? What about lemon water , grapefruit, walnuts , milk, any worries?

I take Synthroid (thyroxine) in am before breakfast. Are there any foods I should be avoiding? What about lemon water , grapefruit, walnuts , milk, any worries?

Synthroid (thyroxine): You should wait about an hour after you take your synthroid (thyroxine) or it won't be properly absorbed. You may be better off taking it at bed-time - about an hour after a snack. Your food and drink list sounds just fine. ...Read more

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I read certain food (soy protein/walnuts/dietary fiber) can affect Synthroid (thyroxine) meds. How long need to wait before eating these after taking pill?

I read certain food (soy protein/walnuts/dietary fiber) can affect Synthroid (thyroxine) meds. How long need to wait before eating these after taking pill?

That's silly: Forgive my frankness. This is news to me after 40 years in medicine and I traced it to a phony "natural healing" doctor-bashing scare website. You do best to take thyroid hormone replacement on an empty stomach and waiting a while maybe 30 minutes before eating, but you were probably told that when it was prescribed. It's of minor importance. Best wishes. ...Read more

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When on Synthroid (thyroxine) and Adderall what is a safe time between taking them to avoid any interaction?

When on Synthroid (thyroxine) and Adderall what is a safe time between taking them to avoid any interaction?

In a perfect world: You would take your synthroid (thyroxine) an hour or two prior to your adderall. Remember, you should avoid taking your synthroid (thyroxine) with diary and/or mineral supplements too. Overall though, there really isn't any significant interaction between the two medications. ...Read more

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Synthroid (thyroxine) and estrogen interaction; does this cause weight gain?

No: Being on estrogen may cause you to need more synthroid, (thyroxine) but if your thyroid level is normal, it makes no difference whether you are on estrogen or not. ...Read more

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Interaction between Synthroid (thyroxine) and sleep-eze (diphenhydramine hydrochloride) ?

Interaction between Synthroid (thyroxine) and  sleep-eze (diphenhydramine hydrochloride) ?

No significant: Medication interactions were noted when using a drug interaction checker. But that is never a 100% guarantee. ...Read more

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What medications or foods interact with synthroid, welbutrin or buspar (buspirone)?

Too broad a question: Generally speaking none of the meds you mentioned are known for their drug-drug or food-drug interactions. However, that's not to say they have none. Being more specific about which foods or meds you are asking about might help. ...Read more

Dr. David Sneid
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Thyroxine (Definition)

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Dr. Joseph Mathews
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Synthroid (Definition)

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