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Dietary supplement

Calcium Lactate Powder Ingredients & Drug Interactions

by Wonder Laboratories

Powder Category: Mineral
Most serious interaction: Major
The interaction bottom line Most serious interaction: Major

Calcium Lactate Powder is a dietary supplement by Wonder Laboratories with 1 active ingredient. 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.

HelloPharmacist Scorecard of Calcium Lactate Powder by Wonder Laboratories

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 1 of its 1 active ingredient.
  • “Calcium” is listed as a grouped ingredient — the label gives one combined amount (355 mg) without saying how much of each component you get.

This product contains one active ingredient: calcium lactate, a form of supplemental calcium. Calcium lactate powder delivers calcium to help your body maintain bone strength, regulate muscle function, and support nerve signaling.

There are no other active ingredients and no inactive fillers listed for this product.

Does it work?

Strong 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
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Bone health and osteoporosis prevention in women.
  • We looked for evidence on: Corticosteroid-induced osteoporosis, Fall prevention, Fetal bone mineralization, Fractures, Osteomalacia, Osteoporosis — and 4 related terms.
  • The strongest evidence on file: Calcium is rated "Likely Effective" for Corticosteroid-induced osteoporosis (Natural Medicines).
  • Also on file: Calcium is rated "Likely Effective" for Osteoporosis.
  • Also on file: Calcium is rated "Possibly Effective" for Fetal bone mineralization, Osteomalacia, Rickets, Tooth retention.

The data supports calcium for several uses. It's rated effective for kidney failure, indigestion (dyspepsia), low blood calcium (hypocalcemia), and high potassium in the blood (hyperkalemia).

It's rated likely effective for osteoporosis, the bone-thinning condition. These ratings reflect clinical evidence that calcium supplementation works for these conditions when taken at recommended doses.

The evidence, ingredient by ingredient Calcium

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Calcium lactate is generally well tolerated at recommended doses. The most common side effects when taken by mouth are belching, constipation, diarrhea, bloating, and stomach upset.

Rare serious concerns include kidney stones and a skin condition called calciphylaxis. There's also epidemiological data suggesting very high calcium intake — over 1500–2000 mg daily from all sources — may be associated with prostate cancer risk and possibly increased cardiovascular risk, though these associations remain debated and are not established cause-and-effect.

For pregnancy, adequate calcium is important and supplementation at recommended amounts is considered likely safe. During breastfeeding, calcium needs can be met through supplementation at recommended doses — check with your provider about what's right for you.

Do not exceed recommended daily amounts without medical guidance.

Side effects, ingredient by ingredient Calcium

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?
  • 1 of the 1 matched ingredient can interact with medications — Calcium.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: heart-rhythm medications; lithium.
  • For scale: 168 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 you take this calcium supplement, check with your pharmacist if you're on dolutegravir or elvitegravir (HIV integrase inhibitors) — you'll need to space them carefully. Also double-check if you take levothyroxine (thyroid hormone), sotalol (heart rhythm medication), raltegravir (another HIV drug), calcipotriene (psoriasis cream), or diltiazem (heart medication), as calcium can reduce how well they work or how much your body absorbs.

If you receive intravenous ceftriaxone (an antibiotic), tell your provider you're taking calcium — they cannot be given together. Run your exact medications through the checker on this page.

Check your own medication Run your meds through the checker above

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.

Calcium lactate is an effective way to meet your calcium needs if you have low blood calcium, osteoporosis, or kidney or digestive issues. If you take HIV medications, thyroid hormone, heart medications, or antibiotics like ceftriaxone, talk to your pharmacist before starting — spacing and timing matter.

Keep your total calcium intake in mind, especially if you consume dairy or fortified foods, and don't exceed recommended amounts without your doctor's approval.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Dec 18, 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

At a glance

General information

Key facts about Calcium Lactate Powder, straight from the product label.

Brand Wonder Laboratories
Net contents 16 Ounce(s); 454 Gram(s)
Market status On market
Date entered into DSLD Dec 18, 2021
DSLD ID 260549
Product type Mineral
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Calcium Lactate Powder by Wonder Laboratories, 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 Level Teaspoon(s)
Maximum serving Sizes:
1 Level Teaspoon(s)
Servings per container
171
IngredientAmount% DV
Calcium355 mg35.5%
Calcium Lactate2650 mg--

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.
Formulation

Regular exercise and a healthy diet with enough calcium helps all women approximately 11 to 35 years of age maintain good bone health and may reduce their high risk of osteoporosis later in life. For persons with a family history of osteoporosis, menopausal women, or elderly men and women, adequate calcium intake is linked to reduced risk of osteoporosis through the mechanism of slowing the rate of bone loss. Adequate calcium intake is important but daily intake above 2000 mg are not likely to provide any additional benefits.

Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)

"Calcium Builds Strong Bones"

Gluten Free

Made in USA

Precautions

Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.

Keep out of reach of children.

Caution: If you are pregnant or nursing, consult your physician before taking this product.

Storage

Keep tightly closed. Store at room temperature: 59 degrees-86 degrees F (15 degrees to 30 degrees C).

General Statements

Notice: This product is sold by weight, not volume. You can be assured of proper weight even though some settling of contents may occur during shipping and handling.

Formula 768

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take 1 level teaspoon three times daily, with meals, mixed with juice or other liquids.

Formula

Each 3 level teaspoons contain: %DV Elemental Calcium 1065 mg 107%

See for yourself

Calcium Lactate Powder by Wonder Laboratories label

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

What’s inside

The Ingredients in Calcium Lactate Powder by Wonder Laboratories

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Level Teaspoon(s) Dosage formPowder Servings per container171 Amounts shown are per serving.

Calcium

Interacts with
168 drugs
355 mg per serving

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
Interaction report

Calcium Lactate Powder by Wonder Laboratories Drug Interactions

Want to check YOUR meds against Calcium Lactate 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 checker
168Drugs
7 Major 143 Moderate 18 Minor

Ingredients driving the most interactions

Calcium 168

Each ingredient & the kinds of drugs it affects

For each ingredient in Calcium Lactate 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.

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 Calcium Lactate Powder, from the product label.

Wonder Laboratories

See all Wonder Laboratories products
Name
Wonder Laboratories
Street Address
115 S.C.T. Ct.
City
White House
State
TN
ZipCode
37188
Pharmacist Counseling Corner

Calcium Lactate Powder by Wonder Laboratories: Common Questions

Does Calcium Lactate Powder by Wonder Laboratories interact with any medications?
Yes. Based on its ingredients, Calcium Lactate Powder has a known interaction with 168 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?
Calcium Lactate Powder contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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.
What is calcium lactate, and why would I take it?
Calcium lactate is a form of supplemental calcium. Your body needs calcium for strong bones, muscle and nerve function, and blood regulation. We have data showing it's effective for low blood calcium, osteoporosis (weak bones), kidney failure, indigestion, and high potassium levels.
What side effects might I get from this supplement?
Most people experience mild digestive side effects — belching, constipation, diarrhea, bloating, or stomach upset. Serious side effects are rare but can include kidney stones and a rare skin condition called calciphylaxis. Very high intakes over time have been linked in some studies to prostate cancer and heart disease risk, though those associations are still being studied.
Is it safe to take calcium lactate if I'm pregnant or breastfeeding?
During pregnancy, adequate calcium is important and using recommended amounts is considered likely safe. During breastfeeding, your calcium needs can be met through supplementation at recommended doses. Talk to your doctor or pharmacist about the right amount for you — don't exceed recommended daily intake without medical advice.
Can I take this with my thyroid medication?
Calcium reduces how well your body absorbs levothyroxine (Synthroid and others), making your thyroid hormone less effective. If you take levothyroxine, separate your calcium supplement by at least 4 hours — take one in the morning and one later in the day.
Does calcium interact with HIV medications?
Yes — calcium significantly lowers blood levels of dolutegravir (Tivicay) and elvitegravir (Vitekta), so these need to be spaced 2–6 hours apart from calcium. Raltegravir (Isentress) is also affected, though more mildly. If you're on any HIV medication, check with your pharmacist before starting calcium.
What if I'm on a heart medication or antibiotic?
Calcium can reduce how well sotalol and diltiazem work, so spacing doses helps. If you're receiving ceftriaxone (Rocephin) by IV, calcium cannot be given intravenously within 48 hours of the antibiotic — tell your doctor you take this supplement.

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.

Calcium Lactate Powder label
Go deeper

The Full Monographs Behind Calcium Lactate Powder’s Ingredients

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

Sources

Sources & How We Checked

Calcium Lactate 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.

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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  41. Levine, M., Nikkanen, H., and Pallin, D. J. The effects of intravenous calcium in patients with digoxin toxicity. J Emerg.Med. 2011;40(1):41-46. PubMed
  42. Castelo-Branco, C., Ciria-Recasens, M., Cancelo-Hidalgo, M. J., Palacios, S., Haya-Palazuelos, J., Carbonell-Abello, J., Blanch-Rubio, J., Martinez-Zapata, M. J., Manasanch, J., and Perez-Edo, L. Efficacy of ossein-hydroxyapatite complex compared with ca
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  47. Jalloh MA, Gregory PJ, Hein D, et al. Dietary supplement interactions with antiretrovirals: a systematic review. Int J STD AIDS. 2017 Jan;28(1):4-15. PubMed
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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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