Ossopan 1100 Ingredients & Drug Interactions
by XYMOGEN
What is this page for?
First and foremost: checking Ossopan 1100 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
Ossopan 1100 is a dietary supplement by XYMOGEN with 3 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, 168 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Calcium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Ossopan 1100 by XYMOGEN
Ask about any prescription or over-the-counter medication and we check it for interactions with Ossopan 1100 by XYMOGEN — 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 Ossopan 1100 by XYMOGEN
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
Ossopan 1100 has three active ingredients. Calcium and microcrystalline hydroxyapatite (a natural bone-derived compound containing calcium and phosphorus) both supply calcium to your body.
Phosphorus is the third ingredient. The product also contains inactive ingredients like hypromellose, microcrystalline cellulose, magnesium stearate, silica, stearic acid, medium chain triglyceride oil, and water — these are fillers and binders that hold the capsule together.
Does it work?
Strong evidence
Calcium in this product is effective for low blood calcium (hypocythemia), kidney failure, and indigestion (dyspepsia), and it's likely effective for osteoporosis — the weakening of bones that happens with age or certain conditions. It may also help with high potassium (hyperkalemia).
The evidence we have supports these uses.
How safe is it?
Well-documented data
Calcium is generally well tolerated at recommended doses, though high amounts can cause problems. The most common side effects from oral calcium are belching, constipation, diarrhea, bloating, and stomach upset.
Rare serious concerns include kidney stones and a skin condition called calciphylaxis. Some research suggests very high daily calcium intake (over 1,500–2,000 mg) might be linked to increased prostate cancer risk or heart disease risk, though that research has been criticized.
In pregnancy, adequate calcium is important — stay within recommended amounts unless your doctor tells you otherwise. During breastfeeding, calcium needs can be met with this supplement at recommended doses; check with your provider.
Meds to double-check
Major interaction found
Before taking Ossopan 1100, check with your pharmacist or doctor if you take HIV integrase inhibitors like dolutegravir or elvitegravir, the antibiotic ceftriaxone by IV, the thyroid medication levothyroxine, heart drugs like sotalol or diltiazem, the HIV drug raltegravir, or the psoriasis treatment calcipotriene. Timing and spacing doses is critical with several of these.
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.
Ossopan 1100 is useful if you need to raise your calcium intake for bone health, kidney issues, or low blood calcium. If you take any HIV medications, antibiotics, thyroid drugs, heart medications, or psoriasis treatments, you'll want to check this product against your exact prescriptions first — timing and spacing matter.
Talk to your pharmacist before starting.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 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
General information
Key facts about Ossopan 1100, straight from the product label.
| Brand | XYMOGEN |
|---|---|
| Barcode (UPC) | 871149001285 |
| Net contents | 60 Packet(s); 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2025 |
| DSLD ID | 335392 |
| Product type | Mineral |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult Female (18 - 50 Years), Gluten Free, Dairy Free |
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 Ossopan 1100 by XYMOGEN, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calcium | 275 mg | 21% |
| Microcrystalline Hydroxyapatite Concentrate | 1.1 Gram(s) | -- |
| Phosphorus | 99 mg | 8% |
| Microcrystalline Hydroxyapatite | 660 mg | -- |
Other ingredients: Hypromellose, Water, Stearic Acid, Medium Chain Triglyceride Oil, Microcrystalline Cellulose, Magnesium Stearate, Silica
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.
Brand IP Statement(s)
S1.Quatrefolic is a registered trademark of Gnosis S.p.A. Porduced under U.S. Patent 7,947,662. S2. Microcrystalline Hydroxyapatite Concentrate. S3. Albion, Ferrochel, and the Albion Gold Medallion are registered trademarks of Balchem Corporation or its subsidiaries. Copyright 2023 XYMOGEN
XYMOGEN Exclusive Professional Formulas
Seals/Symbols
GMP Compliant Third-Party Verified
ePV (ePedigree Verification)
Suggested/Recommended/Usage/Directions
Directions: Take the contents of one packet twice daily, or use as directed by your healthcare professional.
Precautions
Consult your healthcare professional prior to use. Do not use if packet is damaged. The labeling on this product does not comply with California's Proposition 65. Therefore, this product may not be sold in California.
Individuals taking medication, especially blood thinners, should discuss potential interactions with their healthcare professional.
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately. Storage: Keep closed in a cool, dry place out of reach of children.
Formulation
ActivEssentials for Women is a combination of four targeted nutritional formulas packaged together to provide convenient and comprehensive nutritional support.
Formulated to exclude: Wheat, gluten, yeast, soy protein, dairy products, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners.
Daily Dose-Pack Nutrition
Formula
Ossopan 1100: Features MCHC (microcrystalline hydroxyapatite concentrate), a complex crystalline compound primarily of calcium, phosphorus, organic factors, protein matrix, growth factors, and a full spectrum of trace minerals that naturally comprise healthy bones.
Quatrefolic Albion Minerals
General Statements
Each packet contains: 2 ActivNutrients capsules, 1 Oraxinol capsule, 1 OmegaPure 600 EC softgel, and 1 Ossopan 1100 capsule.
Scan this code to learn more!
XYMOGEN supports the initiative Clean seas Turn the tide of plastic XYMOGEN is committed to reducing the amount of plastics used throughout our business, particularly in the packaging of our products. With our participation in the United Nations Environment Programme Clean Seas initiative, we strive to positively decrease our environmental footprint, providing results that can ultimately: Help free the ocean of litter, making it safer for millions of marine animals Reduce the use of non-renewable resources. Keep wild-caught seafood healthy and safe to eat. Protect maritime economies such as organic fishing, tourism, and recreation. We are doing our part to make a world of difference. How are you making an impact? #CleanSeas
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.
Storage
Storage: Keep closed in a cool, dry place out of reach of children.
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Ossopan 1100 by XYMOGEN 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 Ossopan 1100 by XYMOGEN
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 container60 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 with168 drugs
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 & interactionsMicrocrystalline Hydroxyapatite Concentrate
Interacts with168 drugs
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...
Microcrystalline Hydroxyapatite Concentrate monograph & interactionsPhosphorus
Other (inactive) ingredients: Hypromellose, Water, Stearic Acid, Medium Chain Triglyceride Oil, Microcrystalline Cellulose, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.
Ossopan 1100 by XYMOGEN Drug Interactions
HelloPharmacist Interaction Report
Ossopan 1100 by XYMOGEN contains calcium and microcrystalline hydroxyapatite (a calcium source), both of which interact with a number of medications.
The most serious concern is with HIV integrase inhibitors — dolutegravir (Tivicay) and elvitegravir (Vitekta). Calcium can cut dolutegravir levels by nearly 40%, which may reduce how well the drug works; you'd need to separate doses by at least 2 hours before or 6 hours after taking this supplement.
Elvitegravir has similar timing requirements.
Read the full breakdown — every affected drug type, severity by severity
Ceftriaxone (Rocephin), an antibiotic given by IV, is also a major concern — calcium can cause it to precipitate in your lungs and kidneys. Avoid intravenous calcium in any form for 48 hours before or after IV ceftriaxone.
Moderate interactions exist with the HIV drug raltegravir (Isentress), the thyroid medication levothyroxine (Synthroid), the heart rhythm drug sotalol (Betapace), the psoriasis treatment calcipotriene (Dovonex), and the heart drug diltiazem (Cardizem). Calcium reduces how well levothyroxine is absorbed, so space them at least 4 hours apart.
For sotalol, separate doses by at least 2 hours before or 4–6 hours after calcium.
Altogether, these interactions span 167 individual medications. We could not check phosphorus.
Use the medication checker below to see if any of your prescriptions are affected.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Ossopan 1100?
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 Ossopan 1100 interact with 168 drugs. Click any drug to see the details.
1 of the 3 ingredients in Ossopan 1100 interact with drugs. Each result below shows which ingredient is responsible. Calcium
CeftriaxoneRocephin
How Ceftriaxone interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteCeftriaxone (rocephin) Major
Interaction Summary
Co-administration of intravenous calcium and ceftriaxone can result in precipitation of a ceftriaxone-calcium salt in the lungs and kidneys.
Read the full Microcrystalline Hydroxyapatite + Ceftriaxone interactionCobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide FumarateGenvoya
How Cobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide Fumarate interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteElvitegravir (vitekta), Bictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Major
Interaction Summary
Calcium seems to reduce levels of elvitegravir.
Read the full Microcrystalline Hydroxyapatite + Cobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide Fumarate interactionDolutegravirTivicay
How Dolutegravir interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteDolutegravir (tivicay) Major
Interaction Summary
Calcium seems to reduce levels of dolutegravir.
Read the full Microcrystalline Hydroxyapatite + Dolutegravir interactionDolutegravir, Emtricitabine, Tenofovir AlafenamideDolutegravir, Emtricitabine, Tenofovir Alafenamide
How Dolutegravir, Emtricitabine, Tenofovir Alafenamide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteDolutegravir (tivicay), Bictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Major
Interaction Summary
Calcium seems to reduce levels of dolutegravir.
Read the full Microcrystalline Hydroxyapatite + Dolutegravir, Emtricitabine, Tenofovir Alafenamide interactionDolutegravir, RilpivirineJuluca
How Dolutegravir, Rilpivirine interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteDolutegravir (tivicay) Major
Interaction Summary
Calcium seems to reduce levels of dolutegravir.
Read the full Microcrystalline Hydroxyapatite + Dolutegravir, Rilpivirine interactionElvitegravirVitekta
How Elvitegravir interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteElvitegravir (vitekta) Major
Interaction Summary
Calcium seems to reduce levels of elvitegravir.
Read the full Microcrystalline Hydroxyapatite + Elvitegravir interactionElvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil FumarateStribild
How Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteElvitegravir (vitekta), Bictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Major
Interaction Summary
Calcium seems to reduce levels of elvitegravir.
Read the full Microcrystalline Hydroxyapatite + Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate interactionAlendronateBinosto, Fosamax
How Alendronate interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Microcrystalline Hydroxyapatite + Alendronate interactionAlendronate Sodium
How Alendronate Sodium interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Microcrystalline Hydroxyapatite + Alendronate Sodium interactionAlendronate Sodium, CholecalciferolFosamax Plus D
How Alendronate Sodium, Cholecalciferol interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Microcrystalline Hydroxyapatite + Alendronate Sodium, Cholecalciferol interactionAlginic Acid, Aluminum HydroxideRafton
How Alginic Acid, Aluminum Hydroxide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Alginic Acid, Aluminum Hydroxide interactionAluminum Acetate, Benzethonium ChlorideBuro-Sol Otic Solution
How Aluminum Acetate, Benzethonium Chloride interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Acetate, Benzethonium Chloride interactionAluminum ChlorideAluminum Chloride, Anhydrol Forte, Driclor, Drysol
How Aluminum Chloride interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Chloride interactionAluminum HydroxideAlu-Cap, Amphojel, Gaviscon
How Aluminum Hydroxide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Hydroxide interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAluminum Hydroxide, Magnesium Hydroxide (otc Drug)Maalox, Mucogel
How Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interactionAluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug)Mylanta
How Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interactionAluminum, CalciumDomeboro
How Aluminum, Calcium interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum, Calcium interactionAluminum, Magnesium (otc Drug)Almagel
How Aluminum, Magnesium (otc Drug) interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum, Magnesium (otc Drug) interactionAluminum, Magnesium Hydroxide (otc Drug)Wingel
How Aluminum, Magnesium Hydroxide (otc Drug) interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aluminum, Magnesium Hydroxide (otc Drug) interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Amiloride, Hydrochlorothiazide interactionAmphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteTetracycline Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of tetracycline antibiotics.
Read the full Microcrystalline Hydroxyapatite + Amphotericin, Tetracycline interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Microcrystalline Hydroxyapatite + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Atenolol, Chlorthalidone interactionAzilsartan, ChlorthalidoneEdarbyclor
How Azilsartan, Chlorthalidone interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Azilsartan, Chlorthalidone interactionBenazepril, HydrochlorothiazideLotensin HCT
How Benazepril, Hydrochlorothiazide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Benazepril, Hydrochlorothiazide interactionBendroflumethiazideAprinox, Naturetin, Neo-NaClex
How Bendroflumethiazide interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Bendroflumethiazide interactionBendroflumethiazide, NadololCorzide
How Bendroflumethiazide, Nadolol interacts with Ossopan 1100 — through 1 ingredient. Tap an ingredient for the detail:
Microcrystalline HydroxyapatiteThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Microcrystalline Hydroxyapatite + Bendroflumethiazide, Nadolol interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Ossopan 1100 with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
Calcium
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Brand information
Manufacturer and brand details for Ossopan 1100, from the product label.
XYMOGEN
See all XYMOGEN products- Name
- XYMOGEN Exclusive Professional Formulas
- Street Address
- 6900 Kingspointe Pkwy.
- City
- Orlando
- State
- FL
- ZipCode
- 32819
- Phone Number
- 800-647-6100
- Web Address
- www.xymogen.com
Ossopan 1100 by XYMOGEN: 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 Ossopan 1100’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Ossopan 1100'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 62 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
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- 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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- Borkenhagen JF, Connor EL, Stafstrom CE. Neonatal hypocalcemic seizures due to excessive maternal calcium ingestion. Pediatr Neurol 2013;48(6):469-71. PubMed
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- Lan T, Park Y, Colditz GA, et al. Adolescent dairy product and calcium intake in relation to later prostate cancer risk and mortality in the NIH-AARP Diet and Health Study. Cancer Causes Control. 2020;31(10):891-904. PubMed
- Zhang Y, Li Y, Liu J, et al. Association of Vitamin D or Calcium Supplementation with Cardiovascular Outcomes and Mortality: A Meta-Analysis with Trial Sequential Analysis. J Nutr Health Aging 2021;25(2):263-270. PubMed
- Myung SK, Kim HB, Lee YJ, Choi YJ, Oh SW. Calcium Supplements and Risk of Cardiovascular Disease: A Meta-Analysis of Clinical Trials. Nutrients 2021;13(2):368. PubMed
- Hetaimish B. Neonatal Calcinosis Cutis After Treatment of Hypocalcemia with Calcium Gluconate: A Report of 2 Cases. Am J Case Rep 2024;25:e943397. PubMed
- US Food and Drug Administration (FDA). Biktarvy Prescribing Information. October 2024. Available at: https://www.accessdata.fda.gov/drugsatfda_docs/label/2024/210251Orig1s020lbl.pdf. Accessed July 16, 2025.
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