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Doctor insights on: The Interaction Of Large Amounts Of Folic Acid With Warfarin

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Folic Acid (Definition)

Folic acid, AKA folate (folic acid) (vit B9), is recommended for all women wanting to get pregnant -- 0.4mg (400mcg) daily, which is important for preventing birth defects like spina bifida. Women w/ a hx these disorders should take 10x that amt daily -- 4mg (4000mcg) through the 3rd month of pregnancy. It won't affect fertility, chances of conception/twins, or periods. ...Read more


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Effect of acid secretion on absorption of iron and vitamin b12?

Effect of acid secretion on absorption of iron and vitamin b12?

Acid has a profound: Effect on iron. Acid is better. Not an issue with b12, as the issue is intrinsic factor from the stomach which is a cofactor in B12 absorption. ...Read more

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Could intake of calcium carbonate with magnesium and vitamin d, american ginseng, and gingko biloba at once impair the absorption of one another?

Could intake of calcium carbonate with magnesium and vitamin d, american ginseng, and gingko biloba at once impair the absorption of one another?

Don't waste your $: G. biloba failed clinical trials. Ineffective. Ginseng is 1 of those bogus "ancient wisdom" things. Its use is based on a SUPERSTITION called the "doctrine of signatures:" because the root looks like a headless man, the prescientific ancients had this delusion that it would cure things. It doesn't. Be skeptical. Think critically. Arm yourself with modern knowledge, not ancient superstition. ...Read more

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Will high amounts of magnesium supplements block absorption of folic acid?

Will high amounts of magnesium supplements block absorption of folic acid?

Unlikely: well high dose of anything is bad. Therapeutic dose of magnesium should not do that as b Vitamins including folic acid are needed in magnesium metabolism. Too much magnesium causes diarrhea so it is conceivable that there can be nutritional malabsorption including folic acid ...Read more

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What common foods have the least amount of thiamine (vitamin b1)?

What common foods have the least amount of thiamine (vitamin b1)?

Dairy, fruits, why?: I'm not sure why you want to know this, as i know of no reason to avoid the essential nutrient thiamine (except slow suicide?). The richest food sources of vitamin b1 are brewer’s or nutritional yeast, brown rice, egg yolks, fish, legumes, liver, nuts, peas, poultry, rice bran, dulse, kelp, spirulina, wheat germ & whole grains. Alcohol, dairy and fruits have relatively low amounts. Why avoid b1? ...Read more

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Which food has the highest amounts of b-vitamins?

Which food has the highest amounts of b-vitamins?

Varies: The b vitamins include thiamin, riboflavin, niacin, folate, (folic acid) b6, vb12, biotin and pantothenic acid. Some foods are especially good sources of just one b vitamin, while other foods contain several of the b's. Luckily, b vits are widely distributed throughout the food supply, so if you're eating a varied, balanced diet that includes foods from all food groups, you're most likely getting what you need. ...Read more

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Can multivitamins increase risk of providing cancer cells with micro and macro nutrients, in large doses?

Can multivitamins increase risk of providing cancer cells with micro and macro nutrients, in large doses?

Unknown!: Great question! studies give conflicting results. Some chemotherapy works by inhibiting folate (folic acid) used by cancer cells, so high doses of folate (folic acid) aren't good for cancer patients. High doses of vitamin c inhibit some cancers growing in a dish, but also inhibit chemotherapy effects in patients with cancer. I advise getting nutrients from food and avoiding any high-dose supplementation. ...Read more

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Do prenatal vitamins contain enough amount of folic acid or I should take additional folic acid for the health of the baby?

Do prenatal vitamins contain enough amount of folic acid or I should take additional folic acid for the health of the baby?

Consider L-5MTHF: Prenatal vits. Contain enough Folic Acid for most people but about 1/3 of people have difficulty converting Folic Acid (which is synthetic) to the active form, l-5-methyltetrahydrofolate (l-5-mthf) and 10% can 't convert it at all. A test for the mthfr gene is the only way to know for sure but it doesn't hurt to take 400 mcg of l-5-mthf to be safe and to eat dark leafy greens & other diet sources. ...Read more

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What are the side effects of folic acid supplement?

What are the side effects of folic acid supplement?

Cramp diarrhea: High doses of Folic Acid might cause abdominal cramps, diarrhea, rash, sleep disorders, irritabilit, confusion, nausea, stomach upset, behavior changes, skin reactions, seizures, gas, and excitability. Folic acid in 800-1200mcg might increase the risk of heart attack in people who have heart problems. Dont take more than 400mcg a day unless directed by your healthcare provider. ...Read more

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My daily prenatal vitamins have 800mcg of folic acid and 8mcg of b12. Is that sufficient? It's the equaline brand.

Should be but...: 800 mcg of Folic Acid should be fine, though if you are among the 1/3 of people that have trouble converting Folic Acid to the active form, l-5-mthf, you might consider supplementing with 1 mg of l-5-mthf (only a blood tests tells for sure). The rda of B12 is only 2.6 mcg so 8 mcg should be ok, though if you are vegan you could take higher amounts to be safe. For most, what you are on is fine. ...Read more

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Which type of food have the highest percentage of phosphorus(p) in them?Is there limit to consumption of natural sources(not supplements) of p daily?

Which type of food have the highest percentage of phosphorus(p) in them?Is there limit to consumption of natural sources(not supplements) of p daily?

See answer: Might find this website helpful: http://www.Healthaliciousness.Com/articles/high-phosphorus-foods.Php *recommended daily dietary allowance or adults: 700 mg **recommended tolerable daily upper limit: 4, 000 mg (ages 19-70) and 3, 000 mg (age >70) ***caution in presence of kidney disease. ...Read more

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May the daily consuption of acetylsalicylic acid be related to the emergence of hemorrhoids?

May the daily consuption of  acetylsalicylic acid be related to the emergence of hemorrhoids?

Sitting : Hemorrhoids can flair for many reasons. sitting or lack of activity may be best reason. When you sit for long periods you are putting the veins of the anus under stress causing blood to pool. The medication is for inflammatory bowel disease so make sure you GI doctor is aware of your problem and not a flare up. ...Read more

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What is the dose of folic acid to prevent all fetal malformations?

5 mg.: Most of the severe (not all) fetal malformations can be prevented with preconceptional Folic Acid (for at least 3 months before conception). Expect 75% of cardiac defects and >90% of neural tube defects to be prevented thus. ...Read more

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Which vitamin taken in large doses , is associated with fetal injury?

Which vitamin taken in large doses , is associated with fetal injury?

A.: You should stick to your doctor's advice; i generally recommend avoiding more than 1 pnv pill daily mainly due to concerns about hypervitaminosis a - possible teratogen. You can take additional Folic Acid and calcium/iron as needed though, on top of the regular pnv dose. ...Read more

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Vitamin E can increase the risk of heart defects in babies. Prenatal one and dha of Rainbow Light are 60 iu of vitamin e. Is it safe to take?

Vitamin E  can increase the risk of heart defects in babies.
Prenatal one and dha of Rainbow Light are 60 iu of vitamin e. Is it safe to take?

Yes: This is a small amount of Vitamin E and the information may not be accurate. You are likely consuming more Vitamin E in your regular diet. All the best and continue your vitamins. ...Read more

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What are the side effects of glovit vitamins and minerals with amino acids?

What are the side effects of glovit vitamins and minerals with amino acids?

Harmless: The manufacturer reports that they contain common nutrients and apart from the money you pay for them, there should be no side effects. ...Read more

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Can i take methyl folate (folic acid) 400mcg, B6 50mg, and methyl B12 1000mcg with warfarin?

MTHFR gene: Read more on methylation here http://doccarnahan.Blogspot.Com/2013/10/whats-big-deal-about-methylation-update.Html.

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Im compound heterozygous mthfr, i'm warfarin and cardizem la, i'm wanting to know how much of folic acid to take, B6 and B12 a day and how many mg?

Im compound heterozygous mthfr, i'm warfarin and cardizem la, i'm wanting to know how much of folic acid to take, B6 and B12 a day and how many mg?

Confusion: Why are you on warfarin? You are heterozygous. Don't list personal history of clotting. Risk is low. Guidelines don't call for you to be on warfarin without personal history of clots. 400-800 mg Folic Acid would be good, 50 mg b6 and 1000 mcg b12. Good health! ...Read more

Dr. PAUL EUN Dr. EUN
1 doctor agreed:
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My last period was at 3 september iam pregnant how many weeks is taking Coumadin (warfarin) danger i stoped it yesterday and i take folic acid?

Dr. PAUL EUN Dr. EUN
1 doctor agreed:
My last period was at 3 september iam pregnant how many weeks 
is taking Coumadin (warfarin) danger i stoped it yesterday and i take folic acid?

See you doctor: You need to see your doctor right away to determine the status of your pregnancy and also to see how your anticoagulant therapy should be managed. It depends on why you are on Coumadin (warfarin) in the first place and what your risks are during pregnancy. Many women will switch to injectable form of anticoagulant during pregnancy as these do not cross the placenta to affect the baby. ...Read more

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Are there any interactions between folic acid and melatonin?

No: There are no interactions between folic acid and melatonin. However, be aware that folic acid is a synthetic chemical that does not occur in nature. Our bodies must convert it to L-5-MTHF, the active form of folate. About half of people have genetic issues that interfere with this conversion, so many people get much greater benefit from taking L-5-MTHF rather than folic acid. ...Read more

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Taking 2.5mg bisoprolol but also take various supplements worried about interactions garlic, folic acid, selenium, cod liver, Q10, evening primrose, vit e.

Taking 2.5mg bisoprolol but also take various supplements worried about interactions garlic, folic acid, selenium, cod liver, Q10, evening primrose, vit e.

Sups. No Evidence: Supplements widely promoted, big business, but exempted from clinical trials, even need for honesty/accuracy on labels; see DSHEA Act 1994 which exempted all food supplements, thus no reliable data about group, much less individual benefits & downsides. Carvedilol has better track record than bisoprolol (both with ACEI) for heart function, mortality rates; yet both can ? lung bronchospasm, COPD. ...Read more

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Does folic acid ever expire?

Does folic acid ever expire?

Yes and no: Most folic acid tablets and multivitamins have an expiration date on the bottle. Frankly this is erroneous as this compound and many others, will not spontaneously degenerate. Only if the bottle is kept too warm or too wet will there be a change in the potency or quality. ...Read more

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What can people take folic acid for?

Anemia: Folic acid, AKA folate (folic acid) (vit B9), is recommended for all women wanting to get pregnant -- 0.4mg (400mcg) daily, which is important for preventing birth defects like spina bifida. Women w/ a hx these disorders should take 10x that amt daily -- 4mg (4000mcg) through the 3rd month of pregnancy. It won't affect fertility, chances of conception/twins, or periods. Can help with anemia. ...Read more

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What does a high folic acid level mean ?

Supplements?: Is it high due to your taking supplements or because of folate (folic acid) in your diet. High folate (folic acid) has been associated in some studies with increased risk for prostate and colon cancer while other studies show that it prevents neural tube defects in fetuses. Get it naturally and you typically don't have to worry about high levels. ...Read more

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Can you take levoflaxin with folic acid?

Yes: I know of no problem arising from this combination. Beware though that some of the minerals that are in some vitamins can decrease the absorption of levofloxin if they are taken at the same time. Best wishes ...Read more

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What is the use of folic acid in general?

Pregnancy/Anemia: Folic acid, AKA folate (folic acid) (vit B9), is recommended for all women wanting to get pregnant -- 0.4mg (400mcg) daily, which is important for preventing birth defects like spina bifida. Women w/ a hx these disorders should take 10x that amt daily -- 4mg (4000mcg) through the 3rd month of pregnancy. It won't affect fertility, chances of conception/twins, or periods. Can help with anemia. ...Read more

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Does folic acid tablets increase apetite?

In certain groups.: -loss of appetite is one of the signs of Folic Acid deficiency. -in preschool children with poor appetite Folic Acid given for 20 days increased hunger (2007). -rats on a diet without folate for 23 days had low weight, gained it after supplementation (1989). -folic acid is especially important in infancy, adolescence, pregnancy (it protects against ntds) when cells ; tissues are growing rapidly. ...Read more

Warfarin (Definition)

Warfarin is a medication used to thin the blood and to prevent or treat people with blood clots. It requires frequent blood ...Read more


Dr. Ted King
707 doctors shared insights

Coumadin (Definition)

Coumadin is an anticholinergic agent which is a kind of anti-Parkinson's drug ...Read more