Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Peak DIM Ingredients & Drug Interactions

by Peak Pure & Natural

Peak DIM label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Peak DIM against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Peak DIM is a dietary supplement by Peak Pure & Natural with 3 active ingredients. Its ingredients are commonly taken for preventing neural tube birth defects, treating or preventing folate deficiency, supporting pregnancy health.Based on those ingredients, 308 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Diindolylmethane, Folic Acid. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Peak DIM by Peak Pure & Natural

Ask about any prescription or over-the-counter medication and we check it for interactions with Peak DIM by Peak Pure & Natural — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Peak DIM by Peak Pure & Natural

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 3 of its 3 active ingredients.
  • “Folate” is listed as a grouped ingredient — the label gives one combined amount (680 mcg DFE) without saying how much of each component you get.

Peak DIM contains 3 active ingredients: folic acid (a B vitamin that supports cell function and is especially important during pregnancy), folate (another form of the B vitamin), and diindolylmethane or DIM (a compound derived from cruciferous vegetables like broccoli). The product also contains sunflower lecithin, which is derived from sunflower seeds.

The inactive ingredients are rice concentrate, a vegetable capsule, and silica.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: supports healthy hormone balance and metabolism.
  • We looked for evidence on: Acne, Age-related testosterone deficiency, Breast cancer, Metabolic syndrome, Obesity, Polycystic ovary syndrome (PCOS) — and 4 related terms.
  • The closest evidence on file: Folic Acid is rated "Insufficient Reliable Evidence To Rate" for Acne (Natural Medicines).
  • Also on file: Folic Acid is rated "Insufficient Reliable Evidence To Rate" for Breast cancer, Polycystic ovary syndrome (PCOS), Age-related testosterone deficiency, Metabolic syndrome.
  • Also on file: Diindolylmethane is rated "Insufficient Reliable Evidence To Rate" for Breast cancer, Obesity.

Folic acid in this product is effective for folate deficiency and likely effective for preventing methotrexate toxicity and neural tube birth defects in pregnancy. It's possibly effective for depression, phenytoin-induced gingival hyperplasia (gum overgrowth caused by seizure medication), and cognitive impairment.

For diindolylmethane and sunflower lecithin, the evidence we hold doesn't establish effectiveness for any condition—effectiveness ratings are either insufficient or, in the case of lecithin for Alzheimer disease, likely ineffective.

The evidence, ingredient by ingredient Folic Acid Lecithin Diindolylmethane

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Folic acid at recommended doses is generally well tolerated. It's recommended during pregnancy at standard prenatal doses to prevent birth defects and is considered safe at normal recommended doses while breastfeeding.

At higher doses (5 mg daily and above), side effects like abdominal cramps, diarrhea, rash, nausea, and sleep disturbances become more common; at 15 mg daily, confusion, irritability, and impaired judgment can occur. Rarely, long-term high-dose use has been associated with cancer, cardiovascular complications, liver injury, and seizures.

Large doses of folic acid can also trigger or worsen nerve damage in people deficient in vitamin B12, and using it to self-treat undiagnosed anemia can mask pernicious anemia and lead to neurological damage. Sunflower lecithin is generally well tolerated and likely safe in food amounts; gastrointestinal side effects like abdominal pain, diarrhea, fullness, and nausea can occur, and it may trigger allergic skin reactions in people with egg or soy allergies.

Diindolylmethane is generally well tolerated in short-term studies, with common side effects including diarrhea, gas, headache, nausea, rash, and vomiting; long-term safety is not well established. Pregnancy safety for diindolylmethane is likely safe, but it should be avoided while breastfeeding due to insufficient safety data.

Side effects, ingredient by ingredient Folic Acid Lecithin Diindolylmethane

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 2 of the 3 matched ingredients can interact with medications — Folic Acid, Diindolylmethane.
  • The most serious interaction on file is rated Moderate.
  • For scale: 308 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check before taking this product if you use seizure medications (phenobarbital, phenytoin, primidone), cancer drugs (capecitabine, 5-fluorouracil), methotrexate, pyrimethamine, estrogens (birth control or hormone therapy), or diuretic drugs (water pills). The folic acid in this product can interfere with how these medications work or increase their toxicity, and diindolylmethane can theoretically alter estrogen and diuretic effects.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

This product may be worth considering if you're looking to support folate status—especially during pregnancy, when folic acid is recommended. If you take seizure medications, cancer drugs, methotrexate, estrogen-based birth control or hormone therapy, or diuretics, talk to your pharmacist before starting.

The same goes if you have vitamin B12 deficiency or undiagnosed anemia—folic acid can mask these conditions and cause harm.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Peak DIM, straight from the product label.

Brand Peak Pure & Natural
Net contents 30 Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2025
DSLD ID 333610
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Peak DIM by Peak Pure & Natural, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
30
IngredientAmount% DV
Folic Acid400 mcg--
Folate680 mcg DFE170%
Sunflower Lecithin25 mg--
Diindolylmethane100 mg--

Other ingredients: Rice Concentrate, Vegetable Capsule, Silica

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Precautions

Warnings: Keep out of reach of children.

Do not exceed recommended dose. Do not use if clear neck seal is broken or missing.

If you are nursing, pregnant, taking medication or have a medical condition, consult your physician before taking this product.

Storage

Store at room temperature, in a dry place.

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Formula

(Diindolymethane 100 mg)

Formulation

Supports healthy hormone balance and metabolism

Clean label

V

Non GMO Gluten free

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

V Manufactured in U.S.A. with quality ingredients from around the world

Suggested/Recommended/Usage/Directions

Suggested use: Adults take one (1) capsule daily, preferably with a meal or as directed by a healthcare practitioner.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Peak DIM by Peak Pure & Natural label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Peak DIM label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Peak DIM by Peak Pure & Natural

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Folate

680 mcg DFE per serving

Sunflower Lecithin

No known
interactions
25 mg per serving

Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting...

Sunflower Lecithin monograph & interactions

Diindolylmethane

Interacts with
269 drugs
100 mg per serving

Diindolylmethane (DIM) is a compound made when your body digests cruciferous vegetables, and it is sold as a supplement mainly for hormone balance and...

Diindolylmethane monograph & interactions

Other (inactive) ingredients: Rice Concentrate, Vegetable Capsule, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Peak DIM by Peak Pure & Natural Drug Interactions

Want to check YOUR meds against Peak DIM?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
308Drugs
156 Moderate 152 Minor

Ingredients driving the most interactions

Diindolylmethane 269
Folic Acid 40

Individual Drug Interactions

The ingredients in Peak DIM interact with 308 drugs. Click any drug to see the details.

2 of the 3 ingredients in Peak DIM interact with drugs. Each result below shows which ingredient is responsible. Diindolylmethane Folic Acid

Each ingredient & the kinds of drugs it affects

For each ingredient in Peak DIM with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Diindolylmethane3 drug types · 269 drugs

Diuretic Drugs

Theoretically, diindolylmethane might increase the risk of hyponatremia if used with sodium-depleting diuretics.
Large doses of diindolylmethane (600 mg daily) have been associated with two cases of asymptomatic hyponatremia in clinical research.

Likelihood Possible Evidence B
Estrogens

Theoretically, diindolylmethane might increase or decrease the effects of estrogens.
Diindolylmethane might have mild estrogenic or antiestrogenic effects. Theoretically, large amounts of diindolylmethane might interfere with hormone replacement therapy.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, diindolylmethane might lower serum levels of CYP1A2 substrates.
In vitro evidence suggests that diindolylmethane can induce CYP1A2. Theoretically, it might increase metabolism of CYP1A2 substrates and lower serum concentrations. This interaction has not been reported in humans.

Likelihood Unlikely Evidence D
Diindolylmethane full monograph & interactions

Folic Acid7 drug types · 40 drugs

5-Fluorouracil

Theoretically, high doses of folic acid might increase the toxicity of 5-fluorouracil.
Increases in gastrointestinal side effects of 5-fluorouracil, such as stomatitis and diarrhea, have been described in two clinical studies when leucovorin, a form of folic acid, was administered with 5-fluorouracil.

Likelihood Possible Evidence D
Capecitabine (Xeloda)

Use of high-dose folic acid might contribute to capecitabine toxicity.
Clinical research suggests that higher serum folate levels are associated with an increased risk for moderate or severe toxicity during capecitabine-based treatment for colorectal cancer. Additionally, in one case report, taking folic acid 15 mg daily might have contributed to increased toxicity, including severe diarrhea, vomiting, edema, hand-foot syndrome, and eventually death, in a patient prescribed capecitabine.

Likelihood Possible Evidence D
Methotrexate (Trexall, Others)

Folic acid might reduce the efficacy of methotrexate as a cancer treatment when given concurrently.
Methotrexate exerts its cytotoxic effects by preventing conversion of folic acid to the active form needed by cells. There is some evidence that folic acid supplements reduce the efficacy of methotrexate in the treatment of acute lymphoblastic leukemia, and theoretically they could reduce its efficacy in the treatment of other cancers. Advise cancer patients to consult their oncologist before using folic acid supplements. In patients treated with long-term, low-dose methotrexate for rheumatoid arthritis (RA) or psoriasis, folic acid supplements can reduce the incidence of side effects, without reducing efficacy.

Likelihood Probable Evidence B
Phenobarbital (Luminal)

Folic acid might have antagonistic effects on phenobarbital and increase the risk for seizures.
Folic acid can have direct convulsant activity in some people, reversing the effects of phenobarbital and worsening seizure control. Monitor closely for increased seizure activity.

Likelihood Probable Evidence B
Phenytoin (Dilantin)

Folic acid might reduce serum levels of phenytoin in some patients.
Folic acid may be a cofactor in phenytoin metabolism. Folic acid, in doses of 1 mg daily or more, can reduce serum levels of phenytoin in some patients. Increases in seizure frequency have been reported. If folic acid supplements are added to established phenytoin therapy, monitor serum phenytoin levels closely. If phenytoin and folic acid are started at the same time and continued together, adverse changes in phenytoin pharmacokinetics are avoided. Note that phenytoin also reduces serum folate levels.

Likelihood Probable Evidence B
Primidone (Mysoline)

Folic acid might have antagonistic effects on primidone and increase the risk for seizures.
Folic acid can have direct convulsant activity in some people, reversing the effects of primidone and worsening seizure control. Monitor closely for increased seizure activity. Note that primidone also reduces serum folate levels.

Likelihood Probable Evidence B
Pyrimethamine (Daraprim)

Folic acid might antagonize the effects of pyrimethamine.
Folic acid can antagonize the antiparasitic effects of pyrimethamine against toxoplasmosis and Pneumocystis carinii pneumonia. Folic acid doesn't antagonize the effects of pyrimethamine in the treatment of malaria, because malarial parasites cannot use exogenous folic acid. Use folinic acid as an alternative to folic acid when indicated.

Likelihood Probable Evidence D
Folic Acid full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Peak DIM, from the product label.

Peak Pure & Natural

See all Peak Pure & Natural products
Name
Peak Pure & Natural
Street Address
P.O. Box 24638
City
West Palm Beach
State
FL
ZipCode
33416
Phone Number
1-866-773-6899
Web Address
www.PeakNatural.com
Pharmacist Counseling Corner

Peak DIM by Peak Pure & Natural: Common Questions

Does Peak DIM by Peak Pure & Natural interact with any medications?
Yes. Based on its ingredients, Peak DIM has a known interaction with 308 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Peak DIM contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to take while pregnant?
Folic acid, the main active ingredient, is recommended during pregnancy at standard prenatal doses and is considered safe for preventing birth defects. However, diindolylmethane is rated likely safe in pregnancy, but the overall safety of this combination product during pregnancy hasn't been established. Talk to your obstetrician or pharmacist before starting it.
Can I take this while breastfeeding?
Folic acid is safe at normal recommended doses while breastfeeding. Sunflower lecithin is likely safe and is often used to help with clogged milk ducts, but check with your healthcare provider first. Diindolylmethane should be avoided while breastfeeding—there isn't enough safety data.
What is DIM, and what's it supposed to do?
DIM (diindolylmethane) is a compound found naturally in cruciferous vegetables like broccoli and cabbage. The evidence we hold doesn't show that it's effective for any specific condition. If you're considering it for a particular health goal, ask your pharmacist what the research actually shows.
Are there any common side effects I should know about?
Folic acid at recommended doses is generally well tolerated. At higher doses (5 mg daily or more), abdominal cramps, diarrhea, and rash can occur; at 15 mg daily, sleep problems, confusion, and irritability are more common. DIM and lecithin may cause mild gastrointestinal symptoms like nausea, diarrhea, or gas in some people.
Can this product make my birth control or hormone therapy less effective?
Diindolylmethane, one of the active ingredients here, may theoretically interfere with estrogens. If you take birth control pills or hormone replacement therapy, talk to your pharmacist or doctor before adding this product to make sure it won't affect your treatment.
If I have anemia, is this a good choice?
Do not self-treat suspected anemia with this product. Using folic acid supplements to self-treat undiagnosed anemia can mask serious conditions like pernicious anemia and lead to permanent neurological damage. See your doctor for proper testing and diagnosis first.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Peak DIM label
Go deeper

The Full Monographs Behind Peak DIM’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Folic Acid

Interacts with 40 drugs

Folic acid is the man-made form of vitamin B9 and is one of the most well-studied supplements, especially for preventing serious birth defects when taken before and during early pregnancy. I...

Read the full Folic Acid monograph → Herb & supplement monograph

Lecithin

Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting most of its health claims is limited, t...

Read the full Lecithin monograph → Herb & supplement monograph

Diindolylmethane

Interacts with 269 drugs

Diindolylmethane (DIM) is a compound made when your body digests cruciferous vegetables, and it is sold as a supplement mainly for hormone balance and cancer prevention. Although early lab s...

Read the full Diindolylmethane monograph →
Sources

Sources & How We Checked

Peak DIM's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 79 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Folic Acid 56 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Duhra P. Treatment of gastrointestinal symptoms associated with methotrexate therapy for psoriasis. J Am Acad Dermatol 1993;28:466-9. PubMed
  3. Morgan SL, Baggott JE, Vaughn WH, et al. Supplementation with folic acid during methotrexate therapy for rheumatoid arthritis. A double-blind, placebo-controlled trial. Ann Intern Med 1994;121:833-41. PubMed
  4. Froscher W, Maier V, Laage M, et al. Folate deficiency, anticonvulsant drugs, and psychiatric morbidity. Clin Neuropharmacol 1995;18:165-82. PubMed
  5. Lewis DP, Van Dyke DC, Willhite LA, et al. Phenytoin-folic acid interaction. Ann Pharmacother 1995;29:726-35. PubMed
  6. Berg MJ, Stumbo PJ, Chenard CA, et al. Folic acid improves phenytoin pharmacokinetics. J Am Diet Assoc 1995;95:352-6. PubMed
  7. Berg MJ, Fincham RW, Ebert BE, et al. Phenytoin pharmacokinetics: Before and after folic acid administration. Epilepsia 1992;33:712-20. PubMed
  8. Shafer RB, Nuttall FQ. Calcium and folic acid absorption in patients taking anticonvulsant drugs. J Clin Endocrinol Metab 1975;41:1125-9. PubMed
  9. Leeb BF, Witzmann G, Ogris E, et al. Folic acid and cyanocobalamin levels in serum and erythrocytes during low-dose methotrexate therapy of rheumatoid arthritis and psoriatic arthritis patients. Clin Exp Rheumatol 1995;13:459-63.
  10. Morgan SL, Baggott JE, Lee JY, Alarcón GS. Folic acid supplementation prevents deficient blood folate levels and hyperhomocysteinemia during longterm, low dose methotrexate therapy for rheumatoid arthritis: implications for cardiovascular disease preventi
  11. Dijkmans BA. Folate supplementation and methotrexate. Br J Rheumatol 1995;34:1172-4. PubMed
  12. Segal S, Kaminski S. Drug-nutrient interactions. American Druggist 1996 Jul;42-8.
  13. Lambie DG, Johnson RH. Drugs and folate metabolism. Drugs 1985;30:145-55. PubMed
  14. Amer College of Rheumatology ad hoc committee on clinical guidelines. Guidelines for monitoring drug therapy in rheumatoid arthritis. Arthritis Rheum 1996;39:723-31. DOI
  15. Suitor CW, Bailey LB. Dietary folate equivalents: interpretation and application. J Am Diet Assoc 2000;100:88-94. PubMed
  16. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
  17. Sandoval M, Charbonnet RM, Okuhama NN, et al. Cat's claw inhibits TNFalpha production and scavenges free radicals: role in cytoprotection. Free Radic Biol Med 2000;29:71-78.
  18. Antony AC. Megaloblastic Anemias. In: Hoffman R, Benz Jr EJ, Shattil SJ, et al. Hematology: Basic Principles and Practice. 3rd ed. New York, NY: Churchill Livingstone 2000: 451-79.
  19. Reynolds EH. Neurological aspects of folate and vitamin B12 metabolism. Clin Haematol 1976;5:661-96. DOI
  20. Reynolds EH. Folate metabolism and anticonvulsant therapy. Proc R Soc Med 1974;67:68.
  21. Ortiz Z, Shea B, Suarez Almazor M, et al. Folic acid and folinic acid for reducing side effects in patients receiving methotrexate for rheumatoid arthritis (Cochrane Review). Cochrane Database Syst Rev 2000;2:CD000951. PubMed
  22. Van Delden C, Hirschel B. Folinic acid supplements to pyrimethamine-sulfadiazine for Toxoplasma encephalitis are associated with better outcome (letter). J Infect Dis 1996;173:1294-5. PubMed
  23. Schroder H, Clausen N, Ostergard E, Pressler T. Folic acid supplements in vitamin tablets: a determinant of hematological drug tolerance in maintenance therapy of childhood acute lymphoblastic leukemia. Ped Hematol Oncol 1986;3:241-7. PubMed
  24. Lange H, Suryapranata H, De Luca G, et al. Folate therapy and in-stent restenosis after coronary stenting. N Engl J Med 2004;350:2673-81. PubMed
  25. Morris MC, Evans DA, Bienias JL, et al. Dietary folate and vitamin B12 intake and cognitive decline among community-dwelling older persons. Arch Neurol 2005;62:641-5. PubMed
  26. Bonaa KH, Njolstad I, Ueland PM, et al. NORVIT: Homocysteine lowering and cardiovascular events after acute myocardial infarction. N Enlg J Med 2006;354:1578-88. PubMed
  27. Lawson KA, Wright ME, Subar A, et al. Multivitamin use and risk of prostate cancer in the National Institutes of Health-AARP Diet and Health Study. J Natl Cancer Inst 2007;99:754-64. PubMed
  28. Figueiredo JC, Grau MV, Haile RW, et al. Folic acid and risk of prostate cancer: Results from a randomized clinical trial. J Natl Cancer Inst 2009;101:432-5. PubMed
  29. Clippe C, Freyer G, Milano G, Trillet-Lenoir V. Lethal toxicity of capecitabine due to abusive folic acid prescription. Clin Oncol (R Coll Radiol) 2003;15:299-300. PubMed
  30. Bedford Laboratories. Leucovorin calcium [package insert]. Bedford, OH. September 2008. Available at: http://www.bedfordlabs.com/BedfordLabsWeb/products/inserts/LCV-P02.pdf.
  31. Ebbing M, Bonaa KH, Nygard O, et al. Cancer incidence and mortality after treatment with folic acid and vitamin B12. JAMA 2009;302:2119-26.
  32. Haberg, S. E., London, S. J., Stigum, H., Nafstad, P., and Nystad, W. Folic acid supplements in pregnancy and early childhood respiratory health. Arch Dis.Child 2009;94(3):180-184. PubMed
  33. Whitrow, M. J., Moore, V. M., Rumbold, A. R., and Davies, M. J. Effect of supplemental folic acid in pregnancy on childhood asthma: a prospective birth cohort study. Am J Epidemiol. 12-15-2009;170(12):1486-1493. PubMed
  34. Collin, S. M., Metcalfe, C., Refsum, H., Lewis, S. J., Zuccolo, L., Smith, G. D., Chen, L., Harris, R., Davis, M., Marsden, G., Johnston, C., Lane, J. A., Ebbing, M., Bonaa, K. H., Nygard, O., Ueland, P. M., Grau, M. V., Baron, J. A., Donovan, J. L., Nea
  35. Baggott, J. E., Oster, R. A., and Tamura, T. Meta-analysis of cancer risk in folic acid supplementation trials. Cancer Epidemiol. 2012;36(1):78-81. PubMed
  36. Fonseca VA, Lavery LA, Thethi TK, et al. Metanx in type 2 diabetes with peripheral neuropathy: A randomized trial. Am J Med 2013;126(2):141-9. PubMed
  37. Hankey GJ, Eikelboom JW, Yi Q, et al. Treatment with B vitamins and incidence of cancer in patients with previous stroke or transient ischemic attack: Results of a randomized placebo-controlled trial. Stroke 2012;43(6):1572-7. PubMed
  38. Taneja S, Strand TA, Kumar T, et al. Folic acid and vitamin B-12 supplementation and common infections in 6-30-mo-old children in India: a randomized placebo-controlled trial. Am J Clin Nutr 2013;98(3):731-7. PubMed
  39. van Wijngaarden JP, Swart KM, Enneman AW, et al. Effect of daily vitamin B-12 and folic acid supplementation on fracture incidence in elderly individuals with an elevated plasma homocysteine concentration: B-PROOF, a randomized controlled trial. Am J Clin
  40. Qin X, Fan F, Cui Y, Chen F, Chen Y, Cheng X, Li Y, Wang B, Xu X, Xu X, Huo Y, Wang X. Folic acid supplementation with and without vitamin B6 and revascularization risk: a meta-analysis of randomized controlled trials. Clin Nutr. 2014;33(4):603-12. PubMed
  41. Crider KS, Cordero AM, Qi YP, Mulinare J, Dowling NF, Berry RJ. Prenatal folic acid and risk of asthma in children: a systematic review and meta-analysis. Am J Clin Nutr. 2013;98(5):1272-81. PubMed
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See these in context on the Diindolylmethane monograph →

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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

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