Clear Mind Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Clear Mind 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
Clear Mind is a dietary supplement by Natures Nectar with 4 active ingredients. Its ingredients are commonly taken for riboflavin deficiency, migraine prevention, general energy and metabolism support.Based on those ingredients, 1,096 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Feverfew herb powder, Magnesium, Butterbur Powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Clear Mind by Natures Nectar
Ask about any prescription or over-the-counter medication and we check it for interactions with Clear Mind by Natures Nectar — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Clear Mind by Natures Nectar
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.
What’s inside
Full disclosure
Clear Mind contains four active ingredients. Vitamin B2 (riboflavin) is a B vitamin involved in energy and cellular function.
Magnesium is a mineral that supports muscle and nerve function. Feverfew herb powder is a plant traditionally used for wellness support.
Butterbur powder is another herbal ingredient. The capsules also contain inactive ingredients: gelatin, vegetable magnesium stearate, and rice flour.
Does it work?
Strong evidence
The evidence for this product's ingredients is mixed. Magnesium is effective for dyspepsia (indigestion), constipation, and correcting low magnesium levels.
Butterbur is possibly effective for migraine headaches and allergic rhinitis (hay fever). Feverfew's effectiveness for tension headaches and other conditions has insufficient reliable evidence to rate.
Vitamin B2 has no effectiveness ratings on file in our data.
How safe is it?
Well-documented data
Vitamin B2 and magnesium are generally well tolerated at recommended amounts. Riboflavin is needed during pregnancy and breastfeeding and considered safe at standard doses, though check with your provider about high-dose supplements.
Magnesium is also needed in pregnancy but should only be used as a supplement under your doctor's guidance; normal dietary amounts are fine while breastfeeding. Feverfew and butterbur carry more caution.
Feverfew can cause mouth irritation (especially if you chew fresh leaves), allergic reactions in sensitive people, and gastrointestinal symptoms like nausea, diarrhea, and heartburn. The safety data advises against using feverfew during pregnancy because it may stimulate the uterus, and there isn't enough information to use it while breastfeeding.
Butterbur must be pyrrolizidine alkaloid (PA)-free, because raw butterbur can damage the liver. Butterbur is not recommended during pregnancy or breastfeeding due to insufficient safety data and potential liver and other risks.
Both ingredients can cause drowsiness and fatigue. Stopping feverfew after long-term use may trigger withdrawal symptoms like anxiety, headaches, and insomnia.
Meds to double-check
Major interaction found
Before taking Clear Mind, check with your pharmacist if you take levodopa/carbidopa (Parkinson's medication) — magnesium may reduce its effectiveness significantly. Also double-check if you use skeletal muscle relaxants, water pills (especially potassium-sparing types), calcium channel blockers, heart medications, acid reducers, diabetes drugs, quinolone or tetracycline antibiotics, bisphosphonates for bone density, or blood thinners and antiplatelet drugs.
No interactions are documented for vitamin B2 beyond the theoretical risk with tetracyclines.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.
Clear Mind may interest you if you're exploring support for mild digestive issues or general wellness, and you're not taking medications for Parkinson's disease, heart conditions, diabetes, or infections. But this product has significant documented interactions with many common drugs — especially heart, blood pressure, diabetes, antibiotic, and blood-thinning medications.
Talk to your pharmacist before starting, and bring your complete medication list to check against the tool on this page.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 25, 2021.
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
General information
Key facts about Clear Mind, straight from the product label.
| Brand | Natures Nectar |
|---|---|
| Barcode (UPC) | X000SZQAF7 |
| Net contents | 60 Capsule(s) |
| Market status | Off market |
| Date entered into DSLD | Mar 25, 2021 |
| DSLD ID | 246682 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Clear Mind by Natures Nectar, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin B2 | 400 mg | 23529% |
| Magnesium | 400 mg | 100% |
| Feverfew herb powder | 200 mg | -- |
| Butterbur Powder | 150 mg | -- |
Other ingredients: Gelatin, Vegetable Magnesium Stearate, Rice Flour
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
Suggested Use: 2 capsules daily preferably with meals or as directed by a healthcare professional.
Precautions
Caution: Do not exceed recommend dose.
Pregnant or nursing mothers, children under 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Pregnant or nursing mothers, children under 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
This product is manufactured and packaged in a facility which may also process milk, soy, wheat, egg, peanuts, tree nuts fish and crustacean shellfish.
Keep out of reach of children.
Do not use if safety seal is damaged or missing.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Seals/Symbols
Proudly made in the USA GMP Good Manufacturing Pratice Manufactured in a GMP Certified Facility
Formulation
Proudly made in the USA
Nutritional Support
General Statements
Recycle
FDA Statement of Identity
Dietary Supplement
Storage
Store in a cool, dry place.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Clear Mind by Natures Nectar label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Clear Mind by Natures Nectar
These are the 4 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 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.
Vitamin B2
Interacts with20 drugs
Riboflavin (vitamin B2) is an essential nutrient your body needs to turn food into energy and to keep skin, eyes, and nerves healthy. It is generally...
Vitamin B2 monograph & interactionsMagnesium
Interacts with295 drugs
Magnesium is an essential mineral your body needs for muscles, nerves, blood pressure, and many other functions, and supplements are useful for preven...
Magnesium monograph & interactionsFeverfew herb powder
Interacts with931 drugs
Feverfew is a daisy-family herb best known for migraine prevention, where some studies suggest it may modestly lower how often migraines occur, though...
Feverfew herb powder monograph & interactionsButterbur Powder
Interacts with87 drugs
Butterbur is a plant extract most studied for preventing migraines and easing hay fever symptoms, and some standardized products show promise. However...
Butterbur Powder monograph & interactionsOther (inactive) ingredients: Gelatin, Vegetable Magnesium Stearate, Rice Flour. These complete the product’s ingredient list but are not active constituents.
Clear Mind by Natures Nectar Drug Interactions
HelloPharmacist Interaction Report
Clear Mind by Natures Nectar contains four active ingredients, and together they interact with a substantial number of medications.
The most serious interaction involves magnesium and levodopa/carbidopa (used for Parkinson's disease) — magnesium can reduce the amount of levodopa your body absorbs by up to 35%, which may make the medication less effective at controlling symptoms.
Read the full breakdown — every affected drug type, severity by severity
Feverfew and butterbur both work through liver enzymes that metabolize many prescription drugs. Feverfew might theoretically increase levels of medications processed by five different enzyme systems (CYP2C19, CYP2D6, CYP1A2, CYP2C9, CYP3A4, and CYP2C8); butterbur may theoretically increase the toxicity of certain drugs that induce one of those enzymes (CYP3A4).
Neither of these interactions has been reported in humans yet, but the potential exists. Feverfew also carries a moderate risk of increased bleeding when combined with blood thinners (anticoagulants) or antiplatelet drugs like aspirin.
Magnesium interacts with several other drug types: skeletal muscle relaxants (used for muscle tension or spasms), potassium-sparing water pills (which preserve potassium), calcium channel blockers (heart and blood pressure medications), acid reducers like antacids and proton pump inhibitors, diabetes drugs called sulfonylureas, quinolone antibiotics, and bisphosphonates (used for bone density). All of these are Moderate-severity interactions, meaning magnesium may reduce drug effectiveness or increase side effects.
Vitamin B2 (riboflavin) has one documented moderate interaction: it may theoretically reduce the effectiveness of tetracycline antibiotics, though this hasn't been confirmed in humans. Altogether, these interactions span 1,078 individual medications.
Use the medication checker on this page with your exact prescriptions before starting Clear Mind.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Clear Mind?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Clear Mind interact with 1,096 drugs. Click any drug to see the details.
4 of the 4 ingredients in Clear Mind interact with drugs. Each result below shows which ingredient is responsible. Feverfew herb powder Magnesium Butterbur Powder Vitamin B2
GabapentinGralise, Neurontin
How Gabapentin interacts with Clear Mind — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumGabapentin (neurontin) Minor
Interaction Summary
Gabapentin absorption can be decreased by magnesium.
Read the full Magnesium + Gabapentin interactionSevelamerRenagel
How Sevelamer interacts with Clear Mind — through 1 ingredient. Tap an ingredient for the detail:
MagnesiumSevelamer (renagel, Renvela) Minor
Interaction Summary
Sevelamer may increase serum magnesium levels.
Read the full Magnesium + Sevelamer interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Clear Mind 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.
Feverfew herb powder
Anticoagulant/Antiplatelet Drugs
Theoretically, feverfew might have additive effects and increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Laboratory research suggests that feverfew may inhibit platelet aggregation. Additionally, in one case report, a 36-year-old patient taking feverfew 2400 mg daily for 3 months experienced vaginal bleeding and a prolonged menstrual cycle, with a modest increase in partial thromboplastin time (PTT) and prothrombin time (PT).
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP1A2.
Laboratory research shows that feverfew might inhibit CYP1A2. So far, this interaction has not been reported in humans.
Cytochrome P450 2C19 (Cyp2C19) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C19.
Laboratory research shows that feverfew might inhibit CYP2C19. So far, this interaction has not been reported in humans.
Cytochrome P450 2C8 (Cyp2C8) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C8.
Laboratory research shows that feverfew might inhibit CYP2C8. So far, this interaction has not been reported in humans.
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2C9.
Laboratory research shows that feverfew might inhibit CYP2C9. So far, this interaction has not been reported in humans.
Cytochrome P450 2D6 (Cyp2D6) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP2D6.
Laboratory research shows that feverfew might inhibit CYP2D6. So far, this interaction has not been reported in humans.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, feverfew might increase levels of drugs metabolized by CYP3A4.
Laboratory research shows that feverfew might inhibit CYP3A4. So far, this interaction has not been reported in humans.
Magnesium
Levodopa/Carbidopa (Sinemet)
Magnesium can reduce the bioavailability of levodopa/carbidopa.
Clinical research in healthy volunteers shows that taking magnesium oxide 1000 mg with levodopa 100 mg/carbidopa 10 mg reduces the area under the curve (AUC) of levodopa by 35% and of carbidopa by 81%. In vitro and animal research shows that magnesium produces an alkaline environment in the digestive tract, which might lead to degradation and reduced bioavailability of levodopa/carbidopa.
Aminoglycoside Antibiotics
Concomitant use of aminoglycoside antibiotics and magnesium can increase the risk for neuromuscular weakness.
Both aminoglycosides and magnesium reduce presynaptic acetylcholine release, which can lead to neuromuscular blockade and possible paralysis. This is most likely to occur with high doses of magnesium given intravenously.
Antacids
Use of acid reducers may reduce the laxative effect of magnesium oxide.
A retrospective analysis shows that, in the presence of H2 receptor antagonists (H2RAs) or proton pump inhibitors (PPIs), a higher dose of magnesium oxide is needed for a laxative effect. This may also occur with antacids. Under acidic conditions, magnesium oxide is converted to magnesium chloride and then to magnesium bicarbonate, which has an osmotic laxative effect. By reducing acidity, antacids may reduce the conversion of magnesium oxide to the active bicarbonate salt.
Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)
Magnesium might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide should be taken at least 2 hours before or 6 hours after magnesium containing products.
Bisphosphonates
Magnesium can decrease absorption of bisphosphonates.
Cations, including magnesium, can decrease bisphosphonate absorption. Advise patients to separate doses of magnesium and these drugs by at least 2 hours.
Calcium Channel Blockers
Magnesium can have additive effects with calcium channel blockers, although evidence is conflicting.
Magnesium inhibits calcium entry into smooth muscle cells and may therefore have additive effects with calcium channel blockers. Severe hypotension and neuromuscular blockades may occur when nifedipine is used with intravenous magnesium, although some contradictory evidence suggests that concurrent use of magnesium with nifedipine does not increase the risk of neuromuscular weakness. High doses of magnesium could theoretically have additive effects with other calcium channel blockers.
Digoxin
Magnesium salts may reduce absorption of digoxin.
Clinical evidence suggests that treatment with oral magnesium hydroxide or magnesium trisilicate reduces absorption of digoxin from the intestines. This may reduce the blood levels of digoxin and decrease its therapeutic effects.
Potassium-Sparing Diuretics
Potassium-sparing diuretics decrease excretion of magnesium, possibly increasing magnesium levels.
Potassium-sparing diuretics also have magnesium-sparing properties, which can counteract the magnesium losses associated with loop and thiazide diuretics. Theoretically, increased magnesium levels could result from concomitant use of potassium-sparing diuretics and magnesium supplements.
Quinolone Antibiotics
Magnesium decreases absorption of quinolones.
Magnesium can form insoluble complexes with quinolones and decrease their absorption. Advise patients to take these drugs at least 2 hours before, or 4 to 6 hours after, magnesium supplements.
Skeletal Muscle Relaxants
Parenteral magnesium alters the pharmacokinetics of skeletal muscle relaxants, increasing their effects and accelerating the onset of effect.
Parenteral magnesium shortens the time to onset of skeletal muscle relaxants by about 1 minute and prolongs the duration of action by about 2 minutes. Magnesium potentiates the effects of skeletal muscle relaxants by decreasing calcium-mediated release of acetylcholine from presynaptic nerve terminals, reducing postsynaptic sensitivity to acetylcholine, and having a direct effect on the membrane potential of myocytes. Magnesium also has vasodilatory actions and increases cardiac output, allowing a greater amount of muscle relaxant to reach the motor end plate. A clinical study found that low-dose rocuronium (0.45 mg/kg), when given after administration of magnesium 30 mg/kg over 10 minutes, has an accelerated onset of effect, which matches the onset of effect seen with a full-dose rocuronium regimen (0.6 mg/kg). In another clinical study, onset times for rocuronium doses of 0.3, 0.6, and 1.2 mg/kg were 86, 76, and 50 seconds, respectively, when given alone, but were reduced to 66, 44, and 38 seconds, respectively, when the doses were given after a 15-minute infusion of magnesium sulfate 60 mg/kg. Giving intraoperative intravenous magnesium sulfate, 50 mg/kg loading dose followed by 15 mg/kg/hour, reduces the onset time of rocuronium, enhances its clinical effects, reduces the dose of intraoperative opiates, and prolongs the spontaneous recovery time. It does not affect the activity of subsequently administered neostigmine.
Sulfonylureas
Magnesium increases the systemic absorption of sulfonylureas, increasing their effects and side effects.
Clinical research shows that administration of magnesium hydroxide with glyburide increases glyburide absorption, increases maximal insulin response by 35-fold, and increases the risk of hypoglycemia, when compared with glyburide alone. A similar interaction occurs between magnesium hydroxide and glipizide. The mechanism of this effect appears to be related to the elevation of gastrointestinal pH by magnesium-based antacids, increasing solubility and enhancing absorption of sulfonylureas.
Tetracycline Antibiotics
Magnesium decreases absorption of tetracyclines.
Magnesium can form insoluble complexes with tetracyclines in the gut and decrease their absorption and antibacterial activity. Advise patients to take these drugs 1 hour before or 2 hours after magnesium supplements.
Anticoagulant/Antiplatelet Drugs
Theoretically, magnesium may have antiplatelet effects, but the evidence is conflicting.
In vitro evidence shows that magnesium sulfate inhibits platelet aggregation, even at low concentrations. Some preliminary clinical evidence shows that infusion of magnesium sulfate increases bleeding time by 48% and reduces platelet activity. However, other clinical research shows that magnesium does not affect platelet aggregation, although inhibition of platelet-dependent thrombosis can occur.
Gabapentin (Neurontin)
Gabapentin absorption can be decreased by magnesium.
Clinical research shows that giving magnesium oxide orally along with gabapentin decreases the maximum plasma concentration of gabapentin by 33%, time to maximum concentration by 36%, and area under the curve by 43%. Advise patients to take gabapentin at least 2 hours before, or 4 to 6 hours after, magnesium supplements.
Sevelamer (Renagel, Renvela)
Sevelamer may increase serum magnesium levels.
In patients on hemodialysis, sevelamer use was associated with a 0.28 mg/dL increase in serum magnesium. The mechanism of this interaction remains unclear.
Butterbur Powder
Cytochrome P450 3A4 (Cyp3A4) Inducers
Theoretically, CYP3A4 inducers might increase the toxicity of butterbur.
The pyrrolizidine alkaloid (PA) constituents found in some butterbur products are substrates of CYP3A4. Theoretically, drugs that induce CYP3A4 might increase the conversion of PAs to toxic metabolites.
Vitamin B2
Tetracycline Antibiotics
Theoretically, taking riboflavin with tetracycline antibiotics may decrease the potency of these antibiotics.
In vitro research suggests that riboflavin may inhibit the potency of tetracycline antibiotics. It is not clear if this effect is clinically significant, as this interaction has not been reported in humans.
Brand information
Manufacturer and brand details for Clear Mind, from the product label.
Natures Nectar
See all Natures Nectar products- Name
- Natures Nectar
- Street Address
- P.O. Box 31654
- City
- Independence
- State
- Ohio
- ZipCode
- 44131
- Web Address
- NaturesNectarLimited.com
Clear Mind by Natures Nectar: Common Questions
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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.
The Full Monographs Behind Clear Mind’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Riboflavin
Interacts with 20 drugsRiboflavin (vitamin B2) is an essential nutrient your body needs to turn food into energy and to keep skin, eyes, and nerves healthy. It is generally very safe at typical doses, and the stro...
Read the full Riboflavin monograph → Herb & supplement monographMagnesium
Interacts with 295 drugsMagnesium is an essential mineral your body needs for muscles, nerves, blood pressure, and many other functions, and supplements are useful for preventing or correcting deficiency. Some othe...
Read the full Magnesium monograph → Herb & supplement monographFeverfew
Interacts with 931 drugsFeverfew is a daisy-family herb best known for migraine prevention, where some studies suggest it may modestly lower how often migraines occur, though the evidence is mixed. It is generally...
Read the full Feverfew monograph → Herb & supplement monographButterbur
Interacts with 87 drugsButterbur is a plant extract most studied for preventing migraines and easing hay fever symptoms, and some standardized products show promise. However, raw or unprocessed butterbur contains...
Read the full Butterbur monograph →Sources & How We Checked
Clear Mind'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 112 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.
Riboflavin 5 references
- Schoenen J, Jacquy J, Lenaerts M. Effectiveness of high-dose riboflavin in migraine prophylaxis. A randomized controlled trial. Neurology 1998;50:466-70. PubMed
- Yates AA, Schlicker SA, Suitor CW. Dietary reference intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and choline. J Am Diet Assoc 1998;98:699-706. PubMed
- Leeson LJ, Weidenheimer JF. Stability of tetracycline and riboflavin. J Pharm Sci. 1969;58(3):355-7. PubMed
- MacLennan, S. C., Wade, F. M., Forrest, K. M., Ratanayake, P. D., Fagan, E., and Antony, J. High-dose riboflavin for migraine prophylaxis in children: a double-blind, randomized, placebo-controlled trial. J Child Neurol. 2008;23(11):1300-1304.
- Dietary reference intakes (DRIs): estimated average requirements. Food and Nutrition Board, Institute of Medicine, National Academics. https://www.nal.usda.gov/sites/default/files/fnic_uploads//recommended_intakes_individuals.pdf Accessed July 24, 2017.
Magnesium 82 references
- Rodin SM, Johnson BF. Pharmacokinetic interactions with digoxin. Clin Pharmacokinet 1988;15:227-44.
- Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
- Dahle LO, Berg G, Hammar M, et al. The effect of oral magnesium substitution on pregnancy-induced leg cramps. Am J Obstet Gynecol 1995;173:175-80. PubMed
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Peikert A, Wilimzig C, Kohne-Volland R. Prophylaxis of migraine with oral magnesium: results from a prospective, multi-center, placebo-controlled and double-blind randomized study. Cephalalgia 1996;16:257-63. PubMed
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. Washington, DC: National Academy Press, 1999. Available at: http://books.nap.edu/books/0309063507/html/index.html.
- Birrer RB, Shallash AJ, Totten V. Hypermagnesemia-induced fatality following epsom salt gargles. J Emerg Med 2002;22:185-8. PubMed
- Ryan MP. Diuretics and potassium/magnesium depletion. Directions for treatment. Am J Med 1987;82:38-47.. PubMed
- Hollifield JW. Magnesium depletion, diuretics, and arrhythmias. Am J Med 1987;82:30-7.. PubMed
- Heidenreich O. Mode of action of conventional and potassium-sparing diuretics--aspects with relevance to Mg-sparing effects. Magnesium 1984;3:248-56..
- Pfaffenrath V, Wessely P, Meyer C, et al. Magnesium in the prophylaxis of migraine--a double-blind placebo-controlled study. Cephalalgia 1996;16:436-40.. PubMed
- Wang F, Van Den Eeden SK, Ackerson LM, et al. Oral magnesium oxide prophylaxis of frequent migrainous headache in children: a randomized, double-blind, placebo-controlled trial. Headache 2003;43:601-10.. PubMed
- Sompolinsky D, Samra Z. Influence of magnesium and manganese on some biological and physical properties of tetracycline. J Bacteriol 1972;110:468-76.. PubMed
- Jeyabalan A, Caritis SN. Pharmacologic inhibition of preterm labor. Clin Obstet Gynecol 2002;45:99-113. PubMed
- Mittendorf R, Dambrosia J, Pryde PG, et al. Association between the use of antenatal magnesium sulfate in preterm labor and adverse health outcomes in infants. Am J Obstet Gynecol 2002;186:1111-8.. PubMed
- Witlin AG, Sibai BM. Magnesium sulfate therapy in preeclampsia and eclampsia. Obstet Gynecol 1998;92:883-9.. DOI
- Crowther CA, Hiller JE, Doyle LW. Magnesium sulphate for preventing preterm birth in threatened preterm labour. Cochrane Database Syst Rev 2002;4:CD001060. . PubMed
- Davey MJ, Teubner D. A randomized controlled trial of magnesium sulfate, in addition to usual care, for rate control in atrial fibrillation. Ann Emerg Med 2005;45:347-53.. PubMed
- L'Hommedieu CS, Nicholas D, Armes DA, et al. Potentiation of magnesium sulfate--induced neuromuscular weakness by gentamicin, tobramycin, and amikacin. J Pediatr 1983;102:629-31..
- Dunn CJ, Goa KL. Risedronate: a review of its pharmacological properties and clinical use in resorptive bone disease. Drugs 2001;61:685-712..
- Kass L, Weekes J, Carpenter L. Effect of magnesium supplementation on blood pressure: a meta-analysis. Eur J Clin Nutr 2012;66:411-8. PubMed
- Koontz SL, Friedman SA, Schwartz ML. Symptomatic hypocalcemia after tocolytic therapy with magnesium sulfate and nifedipine. Am J Obstet Gynecol. 2004;190(6):1773-6. PubMed
- Snyder SW, Cardwell MS. Neuromuscular blockade with magnesium sulfate and nifedipine. Am J Obstet Gynecol. 1989;161(1):35-6. PubMed
- Waisman GD, Mayorga LM, Cámera MI, et al. Magnesium plus nifedipine: potentiation of hypotensive effect in preeclampsia? Am J Obstet Gynecol. 1988;159(2):308-9. PubMed
- Brown DD, Juhl RP. Decreased bioavailability of digoxin due to antacids and kaolin-pectin. N Engl J Med. 1976;295(19):1034-7. PubMed
- Allen MD, Greenblatt DJ, Harmatz JS, et al. Effect of magnesium--aluminum hydroxide and kaolin--pectin on absorption of digoxin from tablets and capsules. J Clin Pharmacol. 1981;21(1):26-30. PubMed
- Ravn HB, Vissinger H, Kristensen SD, et al. Magnesium inhibits platelet activity--an in vitro study. Thromb Haemost. 1996;76(1):88-93. DOI
- Ravn HB, Kristensen SD, Vissinger H, et al. Magnesium inhibits human platelets. Blood Coagul Fibrinolysis. 1996;7(2):241-4. PubMed
- Ravn HB, Vissinger H, Kristensen SD, et al. Magnesium inhibits platelet activity--an infusion study in healthy volunteers. Thromb Haemost. 1996;75(6):939-44. DOI
- Neuvonen PJ, Kivistö KT. The effects of magnesium hydroxide on the absorption and efficacy of two glibenclamide preparations. Br J Clin Pharmacol. 1991;32(2):215-20. PubMed
- Kivistö KT, Neuvonen PJ. Enhancement of absorption and effect of glipizide by magnesium hydroxide. Clin Pharmacol Ther. 1991;49(1):39-43. PubMed
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