Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

Digestive Advantage Daily Probiotics Digestive & Immune Support Ingredients & Drug Interactions

by Schiff

Capsule Category: Other Combinations
Most serious interaction: Major
The interaction bottom line Most serious interaction: Major

Digestive Advantage Daily Probiotics Digestive & Immune Support is a dietary supplement by Schiff with 2 active ingredients. Its ingredients are commonly taken for bone health and osteoporosis prevention, dietary calcium deficiency, heartburn relief (calcium carbonate antacids).Based on those ingredients, 314 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are BC30 Bacillus coagulans GBI-30, 6086, Calcium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff

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

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 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product has 2 active ingredients: calcium and BC30 Bacillus coagulans GBI-30, 6086. Calcium is a mineral essential for bone health, muscle function, and nerve signaling; this supplement delivers it as a concentrated dose.

Bacillus coagulans is a beneficial spore-forming bacterium—a probiotic meant to support digestive health and normal gut function. The remaining ingredients are inactive components (maltodextrin, hypromellose, magnesium stearate, titanium dioxide, microcrystalline cellulose, and silicon dioxide) that serve as fillers, binders, and capsule material.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: digestive and immune support.
  • We looked for evidence on: Constipation, Diarrhea, Flatulence, Irritable bowel syndrome (IBS), Antibiotic-associated diarrhea, Clostridioides difficile infection — and 4 related terms.
  • The strongest evidence on file: Bacillus Coagulans is rated "Possibly Effective" for Constipation (Natural Medicines).
  • Also on file: Bacillus Coagulans is rated "Possibly Effective" for Irritable bowel syndrome (IBS).
  • Also on file: Bacillus Coagulans is rated "Insufficient Reliable Evidence To Rate" for Antibiotic-associated diarrhea, Upper respiratory tract infection (URTI), Inflammatory bowel disease (IBD), Diarrhea, and more.

Calcium in this product is effective for preventing low blood calcium (hypocalcemia), treating kidney failure-related mineral disorders, managing high potassium (hyperkalemia), and helping prevent bone loss (osteoporosis)—where the evidence rates it likely effective. It's also effective for indigestion (dyspepsia).

Bacillus coagulans, on the other hand, is possibly effective for constipation and irritable bowel syndrome (IBS), but the evidence for antibiotic-associated diarrhea, athletic performance, cancer prevention, and fatty liver disease is insufficient to rate it one way or the other.

The evidence, ingredient by ingredient Calcium Bacillus Coagulans

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Calcium is generally well tolerated at recommended doses, though high amounts can cause problems. Common side effects taken by mouth include belching, constipation, diarrhea, gas, and stomach upset.

Rarely, very high doses have been linked to kidney stones and a concerning condition called calciphylaxis. Some research suggests that calcium intake above 1500–2000 mg per day may be tied to increased prostate cancer risk and possibly to cardiovascular disease, though these findings remain debated.

Bacillus coagulans is generally well tolerated in healthy adults, but evidence and product quality vary, and safety data are limited—talk with your doctor or pharmacist before starting it. There is theoretical concern that live probiotic organisms could cause infection in severely ill or immunocompromised patients with central lines or catheters, though this is uncommon in otherwise healthy people.

Side effects, ingredient by ingredient Calcium Bacillus Coagulans

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 2 of the 2 matched ingredients can interact with medications — Calcium, Bacillus Coagulans.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: heart-rhythm medications; lithium.
  • For scale: 314 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.

Before taking this product, double-check with your doctor or pharmacist if you take any of these: HIV integrase inhibitors (dolutegravir, elvitegravir), the antibiotic ceftriaxone given by IV, thyroid hormone (levothyroxine), the heart rhythm drug sotalol, the psoriasis treatment calcipotriene, the heart drug diltiazem, or any antibiotics. Calcium must be separated from most of these by hours to maintain their effectiveness, and ceftriaxone by IV must be avoided entirely within 48 hours of calcium.

Antibiotics can also reduce how well the probiotic works, so timing those separately matters too.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

This product may be worth considering if you need calcium for bone health or to correct low blood calcium, and if you want probiotic support for occasional constipation or IBS symptoms. However, calcium interacts with several important medications—particularly HIV drugs and thyroid hormone—so check your prescriptions before starting.

Bacillus coagulans can interfere with antibiotics, so timing matters if you're on one. Talk with your doctor or pharmacist about whether this product is right for you and how to take it safely with your other medications.

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

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 26, 2020.

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 Digestive Advantage Daily Probiotics Digestive & Immune Support, straight from the product label.

Brand Schiff
Barcode (UPC) 020525959843
Net contents 80 Capsule(s)
Market status On market
Date entered into DSLD Dec 26, 2020
DSLD ID 240965
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, Dairy 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 Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff, 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)
UPC/BARCODE
020525959843
IngredientAmount% DV
Calcium140 mg11%
BC30 Bacillus coagulans GBI-30, 6086133 mg--

Other ingredients: Maltodextrin, Hypromellose, Magnesium Stearate, Titanium Dioxide, Microcrystalline Cellulose, Silicon Dioxide

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.
General Statements

Take the inside advantage

Our Story We know digestive health is the key to overall health and that digestive issues can put you at a disadvantage. That is why, for over 15 years, Digestive Advantage has been dedicated to your digestive health. Bringing you breakthrough and patented probiotic strains that help support your digestive and immune health.

Look inside: Join, earn points & get rewards Digestive Advantage Rewards Get your Digestive Advantage Rewards code & complete product information Sign up & enter your code at www.digestiveadvantagerewards.com to get rewarded for your purchases! Digestive Advantage Rewards is part of the Schiff Rewards program: collect point & get rewarded for purchasing Neuriva, Move Free, MegaRed, Airborne, Digestive Advantage or Schiff Specialty products. Schiff Rewards Schiff since 1936

Formulation

Our probiotic is protected with a natural protein shell to deliver more live good bacteria to your gut. 100X better probiotic survives stomach acid 100X better vs. leading probiotic & yogurts Helps support immune health Helps lessen minor abdominal discomfort, occasional bloating & diarrhea One capsule survives as well as 8+ yogurts Helps support digestive balance Based on median survivability of Digestive Advantage probiotic BC vs. leading yogurt in a simulated gastric environment.

Gluten-free GMO-free No Dairy

Vegetarian

Schiff Quality Guarantee Purity Freshness Potency

Probiotic survives stomach acid 100X better 4 in 1 Minor abdominal discomfort support Occasional bloating support Immune health support Occasional diarrhea support

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.

Suggested/Recommended/Usage/Directions

24 hr one daily

Directions: Adults 18 years and older, take one (1) capsule daily with water.

FDA Statement of Identity

Dietary Supplement

Precautions

Contains Soy.

If pregnant, breastfeeding, on medication, or are immunocompromised, consult your physician before using this product.

Keep out of reach of children.

Do not use if carton is damaged or if printed seal on blister is broken or missing.

Brand IP Statement(s)

2020 RB Health rb Health Hygiene Home Patents: www. rb.com/patents

Storage

Store in a cool, dry place and avoid excessive heat.

See for yourself

Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff label

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

What’s inside

The Ingredients in Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule 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.

Calcium

Interacts with
168 drugs
140 mg per serving Form: Calcium Carbonate

Calcium is an essential mineral your body needs for strong bones, nerve signaling, and muscle function, and supplements can help fill gaps when diet f...

Calcium monograph & interactions

BC30 Bacillus coagulans GBI-30, 6086

Interacts with
182 drugs
133 mg per serving

Bacillus coagulans is a spore-forming probiotic that survives stomach acid well and may help with some digestive problems such as IBS, constipation, a...

BC30 Bacillus coagulans GBI-30, 6086 monograph & interactions

Other (inactive) ingredients: Maltodextrin, Hypromellose, Magnesium Stearate, Titanium Dioxide, Microcrystalline Cellulose, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff Drug Interactions

Want to check YOUR meds against Digestive Advantage Daily Probiotics Digestive & Immune Support?

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
314Drugs
7 Major 289 Moderate 18 Minor

Ingredients driving the most interactions

Calcium 168

Each ingredient & the kinds of drugs it affects

For each ingredient in Digestive Advantage Daily Probiotics Digestive & Immune Support 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.

BC30 Bacillus coagulans GBI-30, 60861 drug type · 182 drugs

Antibiotic Drugs

Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B. coagulans.
B. coagulans preparations usually contain live and active organisms. Therefore, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and B. coagulans preparations by at least two hours.

Likelihood Probable Evidence D

Calcium18 drug types · 168 drugs

Ceftriaxone (Rocephin)

Co-administration of intravenous calcium and ceftriaxone can result in precipitation of a ceftriaxone-calcium salt in the lungs and kidneys.
Avoid administering intravenous calcium in any form, such as parenteral nutrition or Lactated Ringers, within 48 hours of intravenous ceftriaxone. Case reports in neonates show that administering intravenous ceftriaxone and calcium can result in precipitation of a ceftriaxone-calcium salt in the lungs and kidneys. In several cases, neonates have died as a result of this interaction. So far there are no reports in adults; however, there is still concern that this interaction might occur in adults.

Likelihood Probable Evidence D
Dolutegravir (Tivicay)

Calcium seems to reduce levels of dolutegravir.
Advise patients to take dolutegravir either 2 hours before or 6 hours after taking calcium supplements. Pharmacokinetic research suggests that taking calcium carbonate 1200 mg concomitantly with dolutegravir 50 mg reduces plasma levels of dolutegravir by almost 40%. Calcium appears to decrease levels of dolutegravir through chelation.

Likelihood Probable Evidence B
Elvitegravir (Vitekta)

Calcium seems to reduce levels of elvitegravir.
Advise patients to take elvitegravir either 2 hours before or 2 hours after taking calcium supplements. Pharmacokinetic research suggests that taking calcium along with elvitegravir can reduce blood levels of elvitegravir through chelation.

Likelihood Probable Evidence B
Aluminum

Calcium citrate might increase aluminum absorption and toxicity. Other types of calcium do not increase aluminum absorption.
Calcium citrate can increase the absorption of aluminum when taken with aluminum hydroxide. The increase in aluminum levels may become toxic, particularly in individuals with kidney disease. However, the effect of calcium citrate on aluminum absorption is due to the citrate anion rather than calcium cation. Calcium acetate does not appear to increase aluminum absorption.

Likelihood Possible Evidence B
Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)

Calcium might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption when taken in a fasting state.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide and calcium can be taken together if taken with food. However, if taken on an empty stomach, bictegravir/emtricitabine/tenofovir alafenamide should not be taken with, or 2 hours after, calcium containing products.

Likelihood Probable Evidence D
Bisphosphonates

Calcium reduces the absorption of bisphosphonates.
Advise patients to take bisphosphonates at least 30 minutes before calcium, but preferably at a different time of day. Calcium supplements decrease absorption of bisphosphonates.

Likelihood Probable Evidence C
Calcipotriene (Dovonex)

Taking calcipotriene with calcium might increase the risk for hypercalcemia.
Calcipotriene is a vitamin D analog used topically for psoriasis. It can be absorbed in sufficient amounts to cause systemic effects, including hypercalcemia. Theoretically, combining calcipotriene with calcium supplements might increase the risk of hypercalcemia.

Likelihood Possible Evidence B
Digoxin (Lanoxin)

Using intravenous calcium with digoxin might increase the risk of fatal cardiac arrhythmias.
Hypercalcemia increases the risk of fatal cardiac arrhythmias with digoxin. However, one retrospective analysis of clinical data suggests that intravenous calcium does not increase the risk of dysrhythmias or mortality in patients receiving digoxin.

Likelihood Possible Evidence B
Diltiazem (Cardizem, Others)

Theoretically, calcium may reduce the therapeutic effects of diltiazem.
Hypercalcemia can reduce the effectiveness of verapamil in atrial fibrillation. Theoretically, calcium might increase this risk of hypercalcemia and reduce the effectiveness of diltiazem.

Likelihood Probable Evidence D
Levothyroxine (Synthroid, Others)

Calcium seems to reduce the absorption and effectiveness of levothyroxine.
Advise patients to take levothyroxine and calcium supplements at least 4 hours apart. Calcium reduces levothyroxine absorption, probably by forming insoluble complexes. Calcium carbonate supplements reduce effectiveness of levothyroxine in patients with hypothyroidism.

Likelihood Probable Evidence B
Lithium

Theoretically, concomitant use of calcium and lithium may increase this risk of hypercalcemia.
Clinical research suggests that long-term use of lithium may cause hypercalcemia in 10% to 60% of patients. Theoretically, concomitant use of lithium and calcium supplements may further increase this risk.

Likelihood Possible Evidence B
Quinolone Antibiotics

Calcium seems to reduce the absorption of quinolone antibiotics.
Advise patients to take oral quinolones at least 2 hours before or 4-6 hours after calcium supplements or calcium-fortified foods. Taking calcium at the same time as oral quinolones can reduce quinolone absorption. Calcium binds to quinolones in the gut.

Likelihood Probable Evidence B
Raltegravir (Isentress)

Calcium may reduce levels of raltegravir.
Pharmacokinetic research shows that taking a single dose of calcium carbonate 3000 mg along with raltegravir 400 mg twice daily modestly decreases the mean area under the curve of raltegravir, but the decrease does not necessitate a dose adjustment of raltegravir. However, a case of elevated HIV-1 RNA levels and documented resistance to raltegravir has been reported for a patient taking calcium carbonate 1 gram three times daily plus vitamin D3 (cholecalciferol) 400 IU three times daily in combination with raltegravir 400 mg twice daily for 11 months. It is thought that calcium reduced raltegravir levels by chelation, leading to treatment failure.

Likelihood Possible Evidence B
Sotalol (Betapace)

Calcium seems to reduce the absorption of sotalol.
Advise patients to separate doses by at least 2 hours before or 4-6 hours after calcium. Calcium appears to reduce the absorption of sotalol, probably by forming insoluble complexes.

Likelihood Possible Evidence B
Tetracycline Antibiotics

Calcium seems to reduce the absorption of tetracycline antibiotics.
Advise patients to take oral tetracyclines at least 2 hours before, or 4-6 hours after calcium supplements. Taking calcium at the same time as oral tetracyclines can reduce tetracycline absorption. Calcium binds to tetracyclines in the gut.

Likelihood Probable Evidence C
Thiazide Diuretics

Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Thiazides reduce calcium excretion by the kidneys. Using thiazides along with moderately large amounts of calcium carbonate increases the risk of milk-alkali syndrome (hypercalcemia, metabolic alkalosis, renal failure). Patients may need to have their serum calcium levels and/or parathyroid function monitored regularly.

Likelihood Probable Evidence C
Verapamil (Calan, Others)

Theoretically, calcium may reduce the therapeutic effects of verapamil.
Hypercalcemia can reduce the effectiveness of verapamil in atrial fibrillation. Theoretically, use of calcium supplements may increase this risk of hypercalcemia and reduce the effectiveness of verapamil.

Likelihood Probable Evidence D
Calcium Channel Blockers

Intravenous calcium may decrease the effects of calcium channel blockers; oral calcium is unlikely to have this effect.
Intravenous calcium is used to decrease the effects of calcium channel blockers in the management of overdose. Intravenous calcium gluconate has been used before intravenous verapamil (Isoptin) to prevent or reduce the hypotensive effects without affecting the antiarrhythmic effects. But there is no evidence that dietary or supplemental calcium when taken orally interacts with calcium channel blockers.

Likelihood Unlikely Evidence D
The maker

Brand information

Manufacturer and brand details for Digestive Advantage Daily Probiotics Digestive & Immune Support, from the product label.

Schiff

See all Schiff products
Name
RB Health (US) LLC
City
Parsippany
State
NJ
ZipCode
07054-0224
Phone Number
1-800-526-6251
Web Address
www.digestiveadvantage.com
Pharmacist Counseling Corner

Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff: Common Questions

Does Digestive Advantage Daily Probiotics Digestive & Immune Support by Schiff interact with any medications?
Yes. Based on its ingredients, Digestive Advantage Daily Probiotics Digestive & Immune Support has a known interaction with 314 medications, including 7 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Digestive Advantage Daily Probiotics Digestive & Immune Support contains 2 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.
Will this hurt my levothyroxine (Synthroid)?
Yes—calcium reduces how much levothyroxine your body absorbs and can make it less effective. If you take thyroid hormone, take it at least 4 hours apart from this supplement. Talk to your pharmacist or doctor about the best timing for your doses.
Can I take this with antibiotics?
The Bacillus coagulans probiotic in here contains live organisms that antibiotics can kill, which would reduce the probiotic's benefit. If possible, separate them by a few hours. If you're on an IV antibiotic like ceftriaxone, let your doctor know you're taking calcium, since that combination is unsafe.
Is this safe during pregnancy?
Calcium is likely safe and actually important during pregnancy—adequate amounts support your baby's bone development. Stay within recommended doses and follow your doctor's guidance. The Bacillus coagulans probiotic doesn't have enough safety data during pregnancy, so check with your doctor before taking it.
What if I'm breastfeeding?
Calcium at recommended amounts is safe while breastfeeding and helps meet your baby's needs through your milk. The safety data for the probiotic ingredient during breastfeeding aren't on file, so talk with your doctor or pharmacist about whether it's right for you.
What are the most common side effects?
From the calcium, you might notice belching, constipation, diarrhea, gas, or mild stomach upset—pretty typical for mineral supplements. The probiotic is generally well tolerated, but product quality and individual response can vary.
Does this really help with IBS or constipation?
The Bacillus coagulans in this product is possibly effective for both IBS and constipation, meaning there's some evidence but it's not rock-solid. Results vary from person to person, and you may need to give it a few weeks to notice a difference.

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

Not sure if Digestive Advantage Daily Probiotics Digestive & Immune Support is safe with your meds?

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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.

Digestive Advantage Daily Probiotics Digestive & Immune Support label
Sources

Sources & How We Checked

Digestive Advantage Daily Probiotics Digestive & Immune Support'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 82 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.

Calcium 62 references
  1. Shils M, Olson A, Shike M. Modern Nutrition in Health and Disease. 8th ed. Philadelphia, PA: Lea and Febiger, 1994.
  2. Hernandez-Avila M, Gonzalez-Cossio T, Hernandez-Avila JE, et al. Dietary calcium supplements to lower blood lead levels in lactating women: a randomized placebo-controlled trial. Epidemiology 2003;14:206-12.. PubMed
  3. Thys-Jacobs S, Ceccarelli S, Bierman A, et al. Calcium supplementation in premenstrual syndrome: a randomized crossover trial. J Gen Intern Med 1989;4:183-9. PubMed
  4. Maton PN, Burton ME. Antacids revisited: a review of their clinical pharmacology and recommended therapeutic use. Drugs 1999;57:855-70.
  5. Clemens JD, Feinstein AR. Calcium carbonate and constipation: a historical review of medical mythopoeia. Gastroenterology 1977;72:957-61. DOI
  6. Saunders D, Sillery J, Chapman R. Effect of calcium carbonate and aluminum hydroxide on human intestinal function. Dig Dis Sci 1988;33:409-13. PubMed
  7. Friedman PA, Bushinsky DA. Diuretic effects on calcium metabolism. Semin Nephrol 1999;19:551-6.
  8. Koo WK, Walters JC, Esterlitz J, et al. Maternal calcium supplementation and fetal bone mineralization. Obstet Gynecol 1999;94:577-82. DOI
  9. Raman L, Rajalakshmi K, Krishnamachari KAVR, et al. Effect of calcium supplementation to undernourished mothers during pregnancy on the bone density of the neonates. Am J Clin Nutr 1978; 31:466-9. DOI
  10. Murry JJ, Healy MD. Drug-mineral interactions: a new responsibility for the hospital dietician. J Am Diet Assoc 1991;91:66-73.
  11. Chan JM, Giovannucci E, Andersson SO, et al. Dairy products, calcium, phosphorous, vitamin D, and risk of prostate cancer. Cancer Causes Control 1998;9:559-66.
  12. Butner LE, Fulco PP, Feldman G, et al. Calcium carbonate-induced hypothyroidism. Ann Intern Med 2000:132:595. PubMed
  13. Schneyer CR. Calcium carbonate and reduction of levothyroxine efficacy. JAMA 1998;279:750. PubMed
  14. Moser LR, Smythe MA, Tisdale JE. The use of calcium salts in the prevention and management of verapamil-induced hypotension. Ann Pharmacother 2000;34:622-9. PubMed
  15. Singh N, Singh PN, Hershman JM. Effect of calcium carbonate on the absorption of levothyroxine. JAMA 2000;283:2822-5. PubMed
  16. Kahela P, Anttila M, Tikkanen R, Sundquist H. Effect of food, food constituents and fluid volume on the bioavailability of sotalol. Acta Pharmacol Toxicol (Copenh) 1979;44:7-12.. PubMed
  17. Pletz MW, Petzold P, Allen A, et al. Effect of calcium carbonate on bioavailability of orally administered gemifloxacin. Antimicrob Agents Chemother 2003;47:2158-60.. PubMed
  18. Bar-Or D, Yoel G. Calcium and calciferol antagonize effect of verapamil in atrial fibrillation. Br Med J 1981;282:1585-6.
  19. Decktor DL, Robinson M, Maton PN, et al. Effects of aluminum/magnesium hydroxide and calcium carbonate on esophageal and gastric pH in subjects with heartburn. Am J Ther 1995;2:546-52. PubMed
  20. Simoneau G. Absence of rebound effect with calcium carbonate. Eur J Drug Metab Pharmacokinet 1996;21:351-7. PubMed
  21. Peters ML, Leonard M, Licata AA. Role of alendronate and risedronate in preventing and treating osteoporosis. Cleve Clin J Med 2001;68:945-51. PubMed
  22. Bourke JF, Mumford R, Whittaker P, et al. The effects of topical calcipotriol on systemic calcium homeostasis in patients with chronic plaque psoriasis. J Am Acad Dermatol 1997;37:929-34.
  23. Gueguen L, Pointillart A. The bioavailability of dietary calcium. J Am Coll Nutr 2000;19:119s-136s. PubMed
  24. Vella A, Gerber TC, Hayes DL, Reeder GS. Digoxin, hypercalcaemia, and cardiac conduction. Postgrad Med J 1999;75:554-6. PubMed
  25. Bania TC, Blaufeux B, Hughes S, et al. Calcium and digoxin vs. calcium alone for severe verapamil toxicity. Acad Emerg Med 2000;7:1089-96. PubMed
  26. Tseng M, Breslow RA, Graubard BI, Ziegler RG. Dairy, calcium, and vitamin D intakes and prostate cancer risk in the National Health and Nutrition Examination Epidemiologic Follow-up Study cohort. Am J Clin Nutr 2005;81:1147-54. PubMed
  27. Weingarten MA, Zalmanovici A, Yaphe J. Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps. Cochrane Database Syst Rev 2004;(1):CD003548. PubMed
  28. Tavani A, Bertuccio P, Bosetti C, et al. Dietary intake of calcium, vitamin D, phosphorus and the risk of prostate cancer. Eur Urol 2005;48:27-33. PubMed
  29. Giovannucci E, Liu Y, Stampfer MJ, Willett WC. A prospective study of calcium intake and incident and fatal prostate cancer. Cancer Epidemiol Biomarkers Prev 2006;15:203-10. PubMed
  30. Rocephin (ceftriaxone) and calcium interaction. Pharmacist's Letter / Prescriber's Letter 2007;23(10):231005.
  31. Bolland MJ, Barber PA, Doughty RN, et al. Vascular events in healthy older women receiving calcium supplementation: randomised control trial. BMJ 2008;336:262-6.
  32. Bolland MJ, Avenell A, Baron JA, et al. Effect of calcium supplements on risk of myocardial infarction and cardiovascular events: meta-analysis. BMJ 2010;341:c3691. PubMed
  33. Calcium supplementation and vascular events. Pharmacist's Letter / Prescriber's Letter 2008;24(3):240306.
  34. Dietary reference intakes for calcium and vitamin D. Institute of Medicine, November 30, 2010. Available at: http://www.iom.edu/~/media/Files/Report%20Files/2010/Dietary-Reference-Intakes-for-Calcium-and-Vitamin-D/Vitamin%20D%20and%20Calcium%202010%20Repo
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Parts of this content are provided by the Therapeutic Research Center, LLC.

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.

© 2021 Therapeutic Research Center, LLC

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