Pure HMB Powder Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Pure HMB Powder 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
Pure HMB Powder is a dietary supplement by Micro Ingredients 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, 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 Pure HMB Powder by Micro Ingredients
Ask about any prescription or over-the-counter medication and we check it for interactions with Pure HMB Powder by Micro Ingredients — 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 Pure HMB Powder by Micro Ingredients
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
Pure HMB Powder contains 2 active ingredients: calcium and calcium beta-hydroxy beta-methylbutyrate monohydrate (a calcium salt of HMB). The product contains no other inactive ingredients listed.
Calcium is a mineral essential for bone health, muscle function, and nerve signaling. HMB is a metabolite derived from the amino acid leucine, marketed for muscle support.
Does it work?
Strong evidence
According to the data we hold, calcium is effective for kidney failure, dyspepsia (indigestion), low blood calcium (hypocalcemia), and high potassium levels (hyperkalemia), and likely effective for osteoporosis. The evidence we have does not establish an effectiveness rating for the HMB component of this product.
How safe is it?
Well-documented data
Calcium from this product is generally well tolerated when taken at recommended doses, though high doses can cause problems. The most common side effects are belching, constipation, diarrhea, gas, and stomach upset.
Rare serious concerns from case reports include kidney stones and calciphylaxis (a rare condition involving calcium deposition in skin and soft tissues). There is also some concern that very high daily intakes of calcium (above 1500–2000 mg per day) might be associated with increased prostate cancer risk and cardiovascular risk, though research on this remains mixed and debated.
During pregnancy, adequate calcium is important; stay within recommended amounts unless your doctor advises otherwise. During breastfeeding, calcium needs can be met through this product at recommended amounts, though you should check with your provider.
Meds to double-check
Major interaction found
Check with your doctor or pharmacist before taking this product if you use dolutegravir (Tivicay) or elvitegravir (Vitekta) for HIV, ceftriaxone (Rocephin) as an antibiotic, raltegravir (Isentress) for HIV, levothyroxine (Synthroid) for thyroid disease, sotalol (Betapace) for heart rhythm, calcipotriene (Dovonex) for psoriasis, or diltiazem (Cardizem) for blood pressure or heart rhythm. Calcium can reduce how well these work or increase side effects—and in a few cases, the timing of doses matters a lot.
The bottom line
Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Major medication interactions have been identified, and safety information is well characterized.
This product is a source of calcium and HMB. If you take medications for HIV, thyroid disease, heart rhythm, or blood pressure—or if you use a vitamin D analog for skin conditions—talk with your doctor or pharmacist before starting it.
At recommended doses, calcium is generally well tolerated, but very high intakes carry theoretical concerns for prostate and heart health, so stick to your provider's guidance on dosing.
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 Sep 24, 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 Pure HMB Powder, straight from the product label.
| Brand | Micro Ingredients |
|---|---|
| Barcode (UPC) | X001RPIEG5 |
| Net contents | 250 Gram(s); 8.8 Ounce(s) |
| Market status | On market |
| Date entered into DSLD | Sep 24, 2021 |
| DSLD ID | 256696 |
| Product type | Other Combinations |
| Supplement form | Powder |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (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 Pure HMB Powder by Micro Ingredients, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calcium | 140 mg | 14% |
| Calcium Beta-Hydroxy Beta-Methylbutyrate Monohydrate | 1000 mg | -- |
Other ingredients: None
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.
Formulation
No soy No gluten No GMOs
Free Of: Soy, dairy, yeast, gluten & additives.
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, take 1 scoop three times daily.
Precautions
For best results, please consult your physician.
Keep out of the reach of children.
If pregnant/lactating or taking any medications, please consult your physician prior to use.
Storage
Keep in a cool, dry place.
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.
General Statements
A
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Pure HMB Powder by Micro Ingredients 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 Pure HMB Powder by Micro Ingredients
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size1000 mg Dosage formPowder Servings per container250 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 & interactionsCalcium Beta-Hydroxy Beta-Methylbutyrate Monohydrate
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 Beta-Hydroxy Beta-Methylbutyrate Monohydrate monograph & interactionsOther (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.
Pure HMB Powder by Micro Ingredients Drug Interactions
HelloPharmacist Interaction Report
Pure HMB Powder by Micro Ingredients contains calcium, which interacts with a number of medications.
The most serious concern is with HIV integrase inhibitors and a cephalosporin antibiotic. Calcium can significantly reduce blood levels of dolutegravir (Tivicay) and elvitegravir (Vitekta)—both used to treat HIV—by as much as 40%, potentially making them less effective.
When calcium is given intravenously alongside ceftriaxone (Rocephin), a dangerous precipitation can occur in the lungs and kidneys, so these must be separated by at least 48 hours.
Read the full breakdown — every affected drug type, severity by severity
Calcium also moderately lowers levels or absorption of several other medications. It reduces the effectiveness of raltegravir (Isentress, another HIV drug), thyroid hormone replacement (levothyroxine or Synthroid), and the heart rhythm medication sotalol (Betapace).
It may also weaken the blood-pressure-lowering effects of diltiazem (Cardizem) and increase the risk of dangerously high calcium levels (hypercalcemia) if you're using calcipotriene (Dovonex), a vitamin D analog for psoriasis.
Together, these interactions span 8 individual medications. If you take any prescription medication—especially for HIV, thyroid disease, heart rhythm, or blood pressure—run it through the medication checker on this page before you start this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Pure HMB Powder?
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 Pure HMB Powder interact with 168 drugs. Click any drug to see the details.
1 of the 2 ingredients in Pure HMB Powder interact with drugs. Each result below shows which ingredient is responsible. Calcium
CeftriaxoneRocephin
How Ceftriaxone interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateCeftriaxone (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 Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Ceftriaxone interactionCobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide FumarateGenvoya
How Cobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide Fumarate interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateElvitegravir (vitekta), Bictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Major
Interaction Summary
Calcium seems to reduce levels of elvitegravir.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Cobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide Fumarate interactionDolutegravirTivicay
How Dolutegravir interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateDolutegravir (tivicay) Major
Interaction Summary
Calcium seems to reduce levels of dolutegravir.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Dolutegravir interactionDolutegravir, Emtricitabine, Tenofovir AlafenamideDolutegravir, Emtricitabine, Tenofovir Alafenamide
How Dolutegravir, Emtricitabine, Tenofovir Alafenamide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateDolutegravir (tivicay), Bictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Major
Interaction Summary
Calcium seems to reduce levels of dolutegravir.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Dolutegravir, Emtricitabine, Tenofovir Alafenamide interactionDolutegravir, RilpivirineJuluca
How Dolutegravir, Rilpivirine interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateDolutegravir (tivicay) Major
Interaction Summary
Calcium seems to reduce levels of dolutegravir.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Dolutegravir, Rilpivirine interactionElvitegravirVitekta
How Elvitegravir interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateElvitegravir (vitekta) Major
Interaction Summary
Calcium seems to reduce levels of elvitegravir.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Elvitegravir interactionElvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil FumarateStribild
How Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateElvitegravir (vitekta), Bictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Major
Interaction Summary
Calcium seems to reduce levels of elvitegravir.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate interactionAlendronateBinosto, Fosamax
How Alendronate interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Alendronate interactionAlendronate Sodium
How Alendronate Sodium interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Alendronate Sodium interactionAlendronate Sodium, CholecalciferolFosamax Plus D
How Alendronate Sodium, Cholecalciferol interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Alendronate Sodium, Cholecalciferol interactionAlginic Acid, Aluminum HydroxideRafton
How Alginic Acid, Aluminum Hydroxide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Alginic Acid, Aluminum Hydroxide interactionAluminum Acetate, Benzethonium ChlorideBuro-Sol Otic Solution
How Aluminum Acetate, Benzethonium Chloride interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Acetate, Benzethonium Chloride interactionAluminum ChlorideAluminum Chloride, Anhydrol Forte, Driclor, Drysol
How Aluminum Chloride interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Chloride interactionAluminum HydroxideAlu-Cap, Amphojel, Gaviscon
How Aluminum Hydroxide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Hydroxide interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAluminum Hydroxide, Magnesium Hydroxide (otc Drug)Maalox, Mucogel
How Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interactionAluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug)Mylanta
How Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interactionAluminum, CalciumDomeboro
How Aluminum, Calcium interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum, Calcium interactionAluminum, Magnesium (otc Drug)Almagel
How Aluminum, Magnesium (otc Drug) interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum, Magnesium (otc Drug) interactionAluminum, Magnesium Hydroxide (otc Drug)Wingel
How Aluminum, Magnesium Hydroxide (otc Drug) interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aluminum, Magnesium Hydroxide (otc Drug) interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Amiloride, Hydrochlorothiazide interactionAmphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateTetracycline Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of tetracycline antibiotics.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Amphotericin, Tetracycline interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateAluminum Moderate
Interaction Summary
Calcium citrate might increase aluminum absorption and toxicity.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Atenolol, Chlorthalidone interactionAzilsartan, ChlorthalidoneEdarbyclor
How Azilsartan, Chlorthalidone interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Azilsartan, Chlorthalidone interactionBenazepril, HydrochlorothiazideLotensin HCT
How Benazepril, Hydrochlorothiazide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Benazepril, Hydrochlorothiazide interactionBendroflumethiazideAprinox, Naturetin, Neo-NaClex
How Bendroflumethiazide interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Bendroflumethiazide interactionBendroflumethiazide, NadololCorzide
How Bendroflumethiazide, Nadolol interacts with Pure HMB Powder — through 1 ingredient. Tap an ingredient for the detail:
Calcium Beta-hydroxy Beta-methylbutyrate MonohydrateThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium Beta-hydroxy Beta-methylbutyrate Monohydrate + Bendroflumethiazide, Nadolol interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Pure HMB Powder 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 Pure HMB Powder, from the product label.
Micro Ingredients
See all Micro Ingredients products- Name
- Micro Ingredients
- Street Address
- 21660 Copley Dr.
- City
- Diamond Bar
- State
- CA
- ZipCode
- 91765
- Phone Number
- 1-844-836-8200
- Web Address
- www.microingredients.com
Pure HMB Powder by Micro Ingredients: Common Questions
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Are there any concerns with very high doses of calcium?
Why can't I take this with ceftriaxone?
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 Pure HMB Powder’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Pure HMB Powder'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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- Rocephin (ceftriaxone) and calcium interaction. Pharmacist's Letter / Prescriber's Letter 2007;23(10):231005.
- 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.
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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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- Neuhofel, A. L., Wilton, J. H., Victory, J. M., Hejmanowsk, L. G., and Amsden, G. W. Lack of bioequivalence of ciprofloxacin when administered with calcium-fortified orange juice: a new twist on an old interaction. J Clin Pharmacol. 2002;42(4):461-466. DOI
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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