Bio-Gro Unflavored Ingredients & Drug Interactions
by iSatori
What is this page for?
First and foremost: checking Bio-Gro Unflavored 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
Bio-Gro Unflavored is a dietary supplement by iSatori with 7 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 Bio-Gro Unflavored by iSatori
Ask about any prescription or over-the-counter medication and we check it for interactions with Bio-Gro Unflavored by iSatori — 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 Bio-Gro Unflavored by iSatori
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
Low disclosure
Bio-Gro Unflavored contains 6 active ingredients. Calcium is the primary mineral component, included for bone health and other roles.
The product also contains proline-rich peptides (amino acids tied to connective tissue), lactoferrin (a protein that binds and transports iron), fibroblast growth factor, a proprietary blend of growth factors, and immunoglobulins (immune proteins). The inactive ingredients are medium-chain triglycerides and sunflower lecithin.
Does it work?
Strong evidence
Calcium in this product is effective for kidney failure, indigestion, low blood calcium (hypocalcemia), high potassium (hyperkalemia), and likely effective for osteoporosis. For the other active ingredients, the evidence is less clear.
Proline-rich peptides, lactoferrin, and the growth factor blends all have insufficient reliable evidence to rate them for athletic performance, fractures, bone loss (osteopenia), osteoporosis, or wound healing. Lactoferrin appears possibly effective for blood infection (sepsis) and pregnancy-related iron deficiency, but likely ineffective for preventing harm to newborns.
How safe is it?
Well-documented data
Calcium is generally well tolerated at recommended doses, though high amounts can cause problems. Common mild side effects from oral calcium are belching, constipation, diarrhea, gas, and stomach upset.
Rare serious concerns include kidney stones and a skin condition called calciphylaxis. There is also some concern that very high calcium intake — over 1,500–2,000 mg daily — may be linked to increased prostate cancer risk and possibly cardiovascular disease, though research on this remains mixed and debated.
Proline-rich peptides are considered low-risk from food sources, but supplement safety hasn't been well studied. Lactoferrin is generally well tolerated short-term; at higher doses (7.2 grams daily) constipation, diarrhea, and fatigue have been reported.
Long-term safety data for lactoferrin are limited.
Meds to double-check
Major interaction found
If you take any HIV integrase inhibitors (dolutegravir, elvitegravir, or raltegravir), thyroid medication (levothyroxine), heart drugs (diltiazem, sotalol), the antibiotic ceftriaxone, or psoriasis treatments like calcipotriene, you need to discuss this product with your pharmacist or doctor before starting — calcium can significantly affect how these work. Timing and separation of doses matter.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with strong clinical evidence behind its ingredients' uses. Major medication interactions have been identified, and safety information is well characterized.
This is a calcium-based product suited for bone health and related deficiencies, but its main ingredient interacts with several important drug classes — especially HIV medications and thyroid drugs. If you take prescriptions, check them against this product before use.
Proline-rich peptides and lactoferrin are generally well tolerated but lack strong evidence for many claims. Talk with your pharmacist about your specific medications and health goals.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 25, 2016.
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 Bio-Gro Unflavored, straight from the product label.
| Brand | iSatori |
|---|---|
| Barcode (UPC) | 883488003370 |
| Net contents | 3.17 oz.; 90 Gram(s) |
| Market status | On market |
| Date entered into DSLD | Jan 25, 2016 |
| DSLD ID | 56091 |
| Product type | Other Combinations |
| Supplement form | Powder |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Bio-Gro Unflavored by iSatori, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 5 {Calories} | -- |
| Total Carbohydrates | 1 Gram(s) | 1% |
| Sugar | 0 Gram(s) | -- |
| Calcium | 20 mg | 2% |
| proline rich Peptides | 0 NP | -- |
| Lactoferrin | 0 NP | -- |
| Fibroblast-GF | 0 NP | -- |
| Growth Factors | 0 NP | -- |
| Immunoglobulins | 0 NP | -- |
| Custom Engineered Bio-Pro Bio-Active Peptides | 1.5 Gram(s) | -- |
Other ingredients: Medium Chain Triglycerides, Sunflower Lecithin
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.
Precautions
Consult a physician or healthcare provider before using this or any other dietary supplement or starting any exercise program. WARNING for California residents only: This product contains substances known to the state of California to cause cancer and birth defects and other reproductive harm. Exposure to moisture and humidity may cause clumping but will not affect product efficacy. Do not use if packaging has been tampered with.
NOTICE: TESTED ATHLETES SHOULD CHECK WITH GOVERNING BODY(s) BEFORE USE.
ALLERGEN WARNING: Contains milk product (Colostrum).
WARNING: KEEP OUT OF REACH OF CHILDREN.
Do not use this product if you are pregnant, nursing, or contemplating pregnancy.
Not intended for individuals under the age of 18, unless instructed by a doctor.
Storage
Store in a cool, dry place between 60(0) F and 80(0) F.
Seals/Symbols
MADE IN THE USA
MANUFACUTRED IN A GMP FACILITY
General Statements
Made in the USA in a GMP Facility.
(Stock Symbol: “IFIT”)
PATENT-PENDING. USPTO No. 61/832,610
Bio-Pro Bio-Active Peptides (BAP’s) are cleaved protein fragments extracted from the highest grade bovine colostrum.
For scientific references and clinical study results, visit iSatori.com/BioGro
INSTANTIZED EASY MIXING!
Get Your FREE Hyper-Growth Training Plan, Visit TheMuscleSystem.com or call 1-866-688-7679
PROTEIN SYNTHESIS AMPLIFIER
DELICIOUS
If you, or your doctor, have any questions about this product, please call 1-866-688-7679.
Brand IP Statement(s)
2014 iSatori, Inc.,
POWERED BY Bio Pro Bio-Active Peptides
General
060114
Formula
The first ever to utilize a highly concentrated, patented form of micro-fraction BAP’s, Bio-Gro signals the body to amplify the natural protein synthesis process, helping you develop lean muscle more efficiently and recover faster from intense workouts.
Contains milk product (Colostrum).
Suggested/Recommended/Usage/Directions
DAILY USAGE To best amplify protein synthesis, use Bio-Gro twice daily as follows: BODYWEIGHT <200 lbs >200 lbs AM 2 {scoops} / 3 {scoops} PM 2 {scoops} / 3 {scoops}
DIRECTIONS FOR USE: As a dietary supplement, mix 2 to 3 servings (heaping scoops) of Bio-Gro twice daily in 6 to 9 oz of cold liquid, or mix in soft food (yogurt, oatmeal, protein shake, etc.). Bio-Gro is available as an unflavored or flavored powder that can be taken anytime with or without food. Follow daily usage chart for optimal results (on left panel).
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.
FDA Statement of Identity
DIETARY SUPPLEMENT
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Bio-Gro Unflavored by iSatori 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 Bio-Gro Unflavored by iSatori
These are the 7 active ingredients this product is made of. Select any to open its full monograph.
Serving size3 Gram(s) Dosage formPowder 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.
Sugar
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 & interactionsCustom Engineered Bio-Pro Bio-Active Peptides
- › Proline rich Peptides
- › Lactoferrin
- › Fibroblast-GF
- › Growth Factors
- › Immunoglobulins
Other (inactive) ingredients: Medium Chain Triglycerides, Sunflower Lecithin. These complete the product’s ingredient list but are not active constituents.
Bio-Gro Unflavored by iSatori Drug Interactions
HelloPharmacist Interaction Report
Bio-Gro Unflavored by iSatori contains calcium, which interacts with a number of medications.
The most serious concern is with HIV integrase inhibitors — dolutegravir (Tivicay) and elvitegravir (Vitekta) — where calcium can reduce drug levels by a significant amount, potentially making them less effective. Calcium also poses a Major interaction risk with the antibiotic ceftriaxone (Rocephin) when given intravenously, where the two can form a dangerous precipitate in the lungs and kidneys.
Read the full breakdown — every affected drug type, severity by severity
Moderate interactions are documented with the HIV integrase inhibitor raltegravir (Isentress); the thyroid medication levothyroxine (Synthroid); the blood pressure drug sotalol (Betapace); the heart rhythm medication diltiazem (Cardizem); the psoriasis treatment calcipotriene (Dovonex); and a vitamin D analog that may raise calcium levels. Calcium reduces absorption and effectiveness of several of these drugs by forming insoluble complexes, so timing doses several hours apart is typically recommended.
The other active ingredients — proline-rich peptides, lactoferrin, and several proprietary growth factor and peptide blends — we could not check for interactions, as interaction data is not on file for them. Altogether, these interactions span 167 individual medications.
If you take any prescription medication, especially antiretrovirals or thyroid drugs, run them through the checker below before starting this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Bio-Gro Unflavored?
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 Bio-Gro Unflavored interact with 168 drugs. Click any drug to see the details.
1 of the 7 ingredients in Bio-Gro Unflavored interact with drugs. Each result below shows which ingredient is responsible. Calcium
Hydrochlorothiazide, PropranololInderide
How Hydrochlorothiazide, Propranolol interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Propranolol interactionHydrochlorothiazide, QuinaprilAccuretic
How Hydrochlorothiazide, Quinapril interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Quinapril interactionHydrochlorothiazide, ReserpineHydropres, Serpasil-Esidrix, Serpasil-Esidrix #1, Serpasil-Esidrix #2
How Hydrochlorothiazide, Reserpine interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Reserpine interactionHydrochlorothiazide, SpironolactoneAldactazide, Aldactide 25, Aldactide 50, Spirozine
How Hydrochlorothiazide, Spironolactone interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Spironolactone interactionHydrochlorothiazide, TimololTimolide
How Hydrochlorothiazide, Timolol interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Timolol interactionHydrochlorothiazide, TriamtereneDyazide, Maxzide, Maxzide-25, Triamzide, Triazide
How Hydrochlorothiazide, Triamterene interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Triamterene interactionHydrochlorothiazide, ValsartanDiovan HCT
How Hydrochlorothiazide, Valsartan interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydrochlorothiazide, Valsartan interactionHydroflumethiazideSaluron
How Hydroflumethiazide interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydroflumethiazide interactionHydroflumethiazide, ReserpineSalutensin, Salutensin-Demi
How Hydroflumethiazide, Reserpine interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Hydroflumethiazide, Reserpine interactionIbandronateBoniva, Boniva IV
How Ibandronate interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumBisphosphonates Moderate
Interaction Summary
Calcium reduces the absorption of bisphosphonates.
Read the full Calcium + Ibandronate interactionIndapamideLozide, Lozol
How Indapamide interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Indapamide interactionIrbesartan, HydrochlorothiazideCoAprovel
How Irbesartan, Hydrochlorothiazide interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Irbesartan, Hydrochlorothiazide interactionLamivudine, RaltegravirDutrebis
How Lamivudine, Raltegravir interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumRaltegravir (isentress) Moderate
Interaction Summary
Calcium may reduce levels of raltegravir.
Read the full Calcium + Lamivudine, Raltegravir interactionLamivudine, Tenofovir Disoproxil FumarateTemixys
How Lamivudine, Tenofovir Disoproxil Fumarate interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Calcium might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption when taken in a fasting state.
Read the full Calcium + Lamivudine, Tenofovir Disoproxil Fumarate interactionLevofloxacinLeva-pak, Levaquin, Levaquin Injection
How Levofloxacin interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumQuinolone Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of quinolone antibiotics.
Read the full Calcium + Levofloxacin interactionLevofloxacin (ophthalmic)Levofloxacin
How Levofloxacin (ophthalmic) interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumQuinolone Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of quinolone antibiotics.
Read the full Calcium + Levofloxacin (ophthalmic) interactionLevothyroxineEltroxin, Estre, Euthyrox, Levo-T, Levolet, Levothroid +5 more
How Levothyroxine interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumLevothyroxine (synthroid, Others) Moderate
Interaction Summary
Calcium seems to reduce the absorption and effectiveness of levothyroxine.
Read the full Calcium + Levothyroxine interactionLevothyroxine SodiumErmez, Thyquidity, Tirosint-Sol
How Levothyroxine Sodium interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumLevothyroxine (synthroid, Others) Moderate
Interaction Summary
Calcium seems to reduce the absorption and effectiveness of levothyroxine.
Read the full Calcium + Levothyroxine Sodium interactionLevothyroxine, LiothyronineArmour Thyroid
How Levothyroxine, Liothyronine interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumLevothyroxine (synthroid, Others) Moderate
Interaction Summary
Calcium seems to reduce the absorption and effectiveness of levothyroxine.
Read the full Calcium + Levothyroxine, Liothyronine interactionLithium Carbonate (prescription Drug)Eskalith, Lithium Carbonate
How Lithium Carbonate (prescription Drug) interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumLithium Moderate
Interaction Summary
Theoretically, concomitant use of calcium and lithium may increase this risk of hypercalcemia.
Read the full Calcium + Lithium Carbonate (prescription Drug) interactionLomefloxacinMaxaquin
How Lomefloxacin interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumQuinolone Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of quinolone antibiotics.
Read the full Calcium + Lomefloxacin interactionMethyclothiazideAquatensen, Enduron
How Methyclothiazide interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Methyclothiazide interactionMethyclothiazide, PargylineEutron
How Methyclothiazide, Pargyline interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Methyclothiazide, Pargyline interactionMethyclothiazide, ReserpineDiutensen-R
How Methyclothiazide, Reserpine interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Methyclothiazide, Reserpine interactionMetolazoneDiulo, Mykrox, Zaroxolyn
How Metolazone interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumThiazide Diuretics Moderate
Interaction Summary
Taking calcium along with thiazides might increase the risk of hypercalcemia and renal failure.
Read the full Calcium + Metolazone interactionMetronidazole, Tetracyline, Bismuth Subcitrate PotassiumPylera
How Metronidazole, Tetracyline, Bismuth Subcitrate Potassium interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumTetracycline Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of tetracycline antibiotics.
Read the full Calcium + Metronidazole, Tetracyline, Bismuth Subcitrate Potassium interactionMinocyclineAcnamino MR, Aknemin, Amzeeq, Arestin Miscrosperes, Dynacin, Minocin +6 more
How Minocycline interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumTetracycline Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of tetracycline antibiotics.
Read the full Calcium + Minocycline interactionMinocycline HydrochlorideMinolira, Ximino
How Minocycline Hydrochloride interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumTetracycline Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of tetracycline antibiotics.
Read the full Calcium + Minocycline Hydrochloride interactionMoxifloxacinAvelox
How Moxifloxacin interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumQuinolone Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of quinolone antibiotics.
Read the full Calcium + Moxifloxacin interactionNalidixic AcidNegGram
How Nalidixic Acid interacts with Bio-Gro Unflavored — through 1 ingredient. Tap an ingredient for the detail:
CalciumQuinolone Antibiotics Moderate
Interaction Summary
Calcium seems to reduce the absorption of quinolone antibiotics.
Read the full Calcium + Nalidixic Acid interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Bio-Gro Unflavored 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 Bio-Gro Unflavored, from the product label.
iSatori
See all iSatori products- Name
- iSatori
- Street Address
- 15000 W. 6th Ave., Ste. 202
- City
- Golden
- State
- CO
- ZipCode
- 80401
- Phone Number
- 1-866-688-7679
- Web Address
- www.iSatori.com
Bio-Gro Unflavored by iSatori: Common Questions
Does Bio-Gro Unflavored by iSatori interact with any medications?
How can one product interact with so many drugs?
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Can I take this while breastfeeding?
What are the most common side effects?
Does proline-rich peptides actually help with bone health or fractures?
What is lactoferrin and why is it in here?
Why can't you check some ingredients for drug interactions?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Bio-Gro Unflavored is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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 Bio-Gro Unflavored’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Calcium
Interacts with 168 drugsCalcium is an essential mineral your body needs for strong bones, nerve signaling, and muscle function, and supplements can help fill gaps when diet falls short. Most people do best getting...
Read the full Calcium monograph → Herb & supplement monographProline
Proline is a non-essential amino acid that your body can make on its own and that you also get from protein-rich foods. It is a key building block of collagen, but strong human evidence that...
Read the full Proline monograph → Herb & supplement monographLactoferrin
Lactoferrin is an iron-binding protein found naturally in milk and other body fluids, and supplements are usually made from cow's milk or rice. It is being studied for immune support, iron l...
Read the full Lactoferrin monograph →Sources & How We Checked
Bio-Gro Unflavored'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 72 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
- Shils M, Olson A, Shike M. Modern Nutrition in Health and Disease. 8th ed. Philadelphia, PA: Lea and Febiger, 1994.
- Hernandez-Avila M, Gonzalez-Cossio T, Hernandez-Avila JE, et al. Dietary calcium supplements to lower blood lead levels in lactating women: a randomized placebo-controlled trial. Epidemiology 2003;14:206-12.. PubMed
- Thys-Jacobs S, Ceccarelli S, Bierman A, et al. Calcium supplementation in premenstrual syndrome: a randomized crossover trial. J Gen Intern Med 1989;4:183-9. PubMed
- Maton PN, Burton ME. Antacids revisited: a review of their clinical pharmacology and recommended therapeutic use. Drugs 1999;57:855-70.
- Clemens JD, Feinstein AR. Calcium carbonate and constipation: a historical review of medical mythopoeia. Gastroenterology 1977;72:957-61. DOI
- Saunders D, Sillery J, Chapman R. Effect of calcium carbonate and aluminum hydroxide on human intestinal function. Dig Dis Sci 1988;33:409-13. PubMed
- Friedman PA, Bushinsky DA. Diuretic effects on calcium metabolism. Semin Nephrol 1999;19:551-6.
- Koo WK, Walters JC, Esterlitz J, et al. Maternal calcium supplementation and fetal bone mineralization. Obstet Gynecol 1999;94:577-82. DOI
- Raman L, Rajalakshmi K, Krishnamachari KAVR, et al. Effect of calcium supplementation to undernourished mothers during pregnancy on the bone density of the neonates. Am J Clin Nutr 1978; 31:466-9. DOI
- Murry JJ, Healy MD. Drug-mineral interactions: a new responsibility for the hospital dietician. J Am Diet Assoc 1991;91:66-73.
- Chan JM, Giovannucci E, Andersson SO, et al. Dairy products, calcium, phosphorous, vitamin D, and risk of prostate cancer. Cancer Causes Control 1998;9:559-66.
- Butner LE, Fulco PP, Feldman G, et al. Calcium carbonate-induced hypothyroidism. Ann Intern Med 2000:132:595. PubMed
- Schneyer CR. Calcium carbonate and reduction of levothyroxine efficacy. JAMA 1998;279:750. PubMed
- Moser LR, Smythe MA, Tisdale JE. The use of calcium salts in the prevention and management of verapamil-induced hypotension. Ann Pharmacother 2000;34:622-9. PubMed
- Singh N, Singh PN, Hershman JM. Effect of calcium carbonate on the absorption of levothyroxine. JAMA 2000;283:2822-5. PubMed
- Kahela P, Anttila M, Tikkanen R, Sundquist H. Effect of food, food constituents and fluid volume on the bioavailability of sotalol. Acta Pharmacol Toxicol (Copenh) 1979;44:7-12.. PubMed
- Pletz MW, Petzold P, Allen A, et al. Effect of calcium carbonate on bioavailability of orally administered gemifloxacin. Antimicrob Agents Chemother 2003;47:2158-60.. PubMed
- Bar-Or D, Yoel G. Calcium and calciferol antagonize effect of verapamil in atrial fibrillation. Br Med J 1981;282:1585-6.
- Decktor DL, Robinson M, Maton PN, et al. Effects of aluminum/magnesium hydroxide and calcium carbonate on esophageal and gastric pH in subjects with heartburn. Am J Ther 1995;2:546-52. PubMed
- Simoneau G. Absence of rebound effect with calcium carbonate. Eur J Drug Metab Pharmacokinet 1996;21:351-7. PubMed
- Peters ML, Leonard M, Licata AA. Role of alendronate and risedronate in preventing and treating osteoporosis. Cleve Clin J Med 2001;68:945-51. PubMed
- Bourke JF, Mumford R, Whittaker P, et al. The effects of topical calcipotriol on systemic calcium homeostasis in patients with chronic plaque psoriasis. J Am Acad Dermatol 1997;37:929-34.
- Gueguen L, Pointillart A. The bioavailability of dietary calcium. J Am Coll Nutr 2000;19:119s-136s. PubMed
- Vella A, Gerber TC, Hayes DL, Reeder GS. Digoxin, hypercalcaemia, and cardiac conduction. Postgrad Med J 1999;75:554-6. PubMed
- Bania TC, Blaufeux B, Hughes S, et al. Calcium and digoxin vs. calcium alone for severe verapamil toxicity. Acad Emerg Med 2000;7:1089-96. PubMed
- Tseng M, Breslow RA, Graubard BI, Ziegler RG. Dairy, calcium, and vitamin D intakes and prostate cancer risk in the National Health and Nutrition Examination Epidemiologic Follow-up Study cohort. Am J Clin Nutr 2005;81:1147-54. PubMed
- Weingarten MA, Zalmanovici A, Yaphe J. Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps. Cochrane Database Syst Rev 2004;(1):CD003548. PubMed
- Tavani A, Bertuccio P, Bosetti C, et al. Dietary intake of calcium, vitamin D, phosphorus and the risk of prostate cancer. Eur Urol 2005;48:27-33. PubMed
- Giovannucci E, Liu Y, Stampfer MJ, Willett WC. A prospective study of calcium intake and incident and fatal prostate cancer. Cancer Epidemiol Biomarkers Prev 2006;15:203-10. PubMed
- 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.
- Bolland MJ, Avenell A, Baron JA, et al. Effect of calcium supplements on risk of myocardial infarction and cardiovascular events: meta-analysis. BMJ 2010;341:c3691. PubMed
- Calcium supplementation and vascular events. Pharmacist's Letter / Prescriber's Letter 2008;24(3):240306.
- 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
- Coburn JW, Mischel MG, Goodman WG, et al. Calcium citrate markedly enhances aluminum absorption from aluminum hydroxide. Am J Kidney Dis. 1991;17(6):708-11. PubMed
- Bradley JS, Wassel RT, Lee L, et al. Intravenous ceftriaxone and calcium in the neonate: assessing the risk for cardiopulmonary adverse events. Pediatrics. 2009;123(4):e609-13. PubMed
- Kays MB, Overholser BR, Mueller BA, et al. Effects of sevelamer hydrochloride and calcium acetate on the oral bioavailability of ciprofloxacin. Am J Kidney Dis. 2003;42(6):1253-9. PubMed
- 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
- Dickinson, H. O., Nicolson, D. J., Cook, J. V., Campbell, F., Beyer, F. R., Ford, G. A., and Mason, J. Calcium supplementation for the management of primary hypertension in adults. Cochrane.Database.Syst.Rev. 2006;(2):CD004639. PubMed
- Jones, B. J. and Twomey, P. J. Requesting patterns for serum calcium concentration in patients on long-term lithium therapy. Int J Clin Pract. 2009;63(1):170-172. PubMed
- 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
- 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
- Li K, Kaaks R, Linseisen J, Rohrmann S. Associations of dietary calcium intake and calcium supplementation with myocardial infarction and stroke risk and overall cardiovascular mortality in the Heidelberg cohort of the European Prospective Investigation i
- Chung M, Tang AM, Fu Z. Calcium Intake and Cardiovascular Disease Risk: An Updated Systematic Review and Meta-analysis. Ann Intern Med. 2016 Oct 25. PubMed
- Nolan CR, Califano JR, Butzin CA. Influence of calcium acetate or calcium citrate on intestinal aluminum absorption. Kidney Int. 1990;38(5):937-41. PubMed
- Lewis JR, Radavelli-Bagatini S, Rejnmark L, et al. The effects of calcium supplementation on verified coronary heart disease hospitalization and death in postmenopausal women: a collaborative meta-analysis of randomized controlled trials. J Bone Miner Res PubMed
- 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
- Lappe J, Watson P, Travers-Gustafson D, Recker R, Garland C, Gorham E, Baggerly K, McDonnell SL. Effect of Vitamin D and Calcium Supplementation on Cancer Incidence in Older Women: A Randomized Clinical Trial. JAMA. 2017 Mar 28;317(12):1234-1243. PubMed
- Grove ML, Cook D. Calcium and heart attacks. Doesn't apply to most calcium prescriptions. BMJ. 2010;341:c5003. PubMed
- Insentress [package insert]. Whitehouse Station, NJ: Merck Sharp & Dohme Corp.; 2014.
- Roberts JL, Kiser JJ, Hindman JT, Meditz AL. Virologic failure with a raltegravir-containing antiretroviral regimen and concomitant calcium administration. Pharmacotherapy 2011;31(10):298e-302e. DOI
- Vitekta [package insert]. Foster City, CA: Gilead Sciences, Inc.; 2014.
- Storan ER, O'Gorman SM, Murphy A, Laing M. Case Report of Calciphylaxis Secondary to Calcium and Vitamin D<sub>3</sub> Supplementation. J Cutan Med Surg. 2017;21(2):162-163. DOI
- Jenkins DJA, Spence JD, Giovannucci EL, et al. Supplemental vitamins and minerals for CVD prevention and treatment. J Am Coll Cardiol 2018;71(22):2570-84. PubMed
- Borkenhagen JF, Connor EL, Stafstrom CE. Neonatal hypocalcemic seizures due to excessive maternal calcium ingestion. Pediatr Neurol 2013;48(6):469-71. PubMed
- WHO recommendations on antenatal care for a positive pregnancy experience. Geneva: World Health Organization; 2016 (http://www.who.int/reproductivehealth/publications/maternal_perinatal_health/ anc-positive-pregnancy-experience/en/).
- Aune D, Navarro Rosenblatt DA, Chan DS, et al. Dairy products, calcium, and prostate cancer risk: a systematic review and meta-analysis of cohort studies. Am J Clin Nutr. 2015;101(1):87-117. PubMed
- 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.
Proline 4 references
- Jennings A, MacGregor A, Spector T, Cassidy A. Amino acid intakes are associated with bone mineral density and prevalence of low bone mass in women: Evidence from discordant monozygotic twins. J Bone Miner Res. 2016;31(2):326-35. PubMed
- Gracia-Marco L, Bel-Serrat S, Cuenca-Garcia M, et al. Amino acids intake and physical fitness among adolescents. Amino Acids. 2017;49(6):1041-1052. PubMed
- Jamdar J, Rao B, Netke S, et al. Reduction in tibial shaft fracture healing time with essential nutrient supplementation containing ascorbic acid, lysine, and proline. J Altern Complement Med. 2004;10(6):915-6.
- Mehl AA, Damião AO, Viana SD, Andretta CP. Hard-to-heal wounds: a randomised trial of an oral proline-containing supplement to aid repair. J Wound Care 2021;30(1):26-31. PubMed
Lactoferrin 6 references
- Food and Drug Administration, CFSAN/Office of Food Additive Safety. Agency Response Letter GRAS Notice No. GRN 000130. 2003. Available at: http://www.cfsan.fda.gov/~rdb/opa-g130.html (Accessed 29 June 2005).
- Okada S, Tanaka K, Sato T, et al. Dose-response trial of lactoferrin in patients with chronic hepatitis C. Jpn J Cancer Res 2002;93:1063-9. PubMed
- Abu Hashim H, Foda O, Ghayaty E. Lactoferrin or ferrous salts for iron deficiency anemia in pregnancy: A meta-analysis of randomized trials. Eur J Obstet Gynecol Reprod Biol. 2017;219:45-52. PubMed
- Tarnow-Mordi WO, Abdel-Latif ME, Martin A, et al. The effect of lactoferrin supplementation on death or major morbidity in very low birthweight infants (LIFT): a multicentre, double-blind, randomised controlled trial. Lancet Child Adolesc Health. 2020 Jun PubMed
- ELFIN trial investigators group. Enteral lactoferrin supplementation for very preterm infants: a randomised placebo-controlled trial. Lancet. 2019 Feb 2;393(10170):423-433. doi: 10.1016/S0140-6736(18)32221-9.
- Lepanto MS, Rosa L, Cutone A, Conte MP, Paesano R, Valenti P. Efficacy of lactoferrin oral administration in the treatment of anemia and anemia of inflammation in pregnant and non-pregnant women: An interventional study. Front Immunol. 2018 Sep 21;9:2123. PubMed
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