Pure Inositol Powder Ingredients & Drug Interactions
by Only Natural
What is this page for?
First and foremost: checking Pure Inositol 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 Inositol Powder is a dietary supplement by Only Natural with 4 active ingredients. Its ingredients are commonly taken for constipation, diarrhea, high cholesterol.Based on those ingredients, 2,053 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dietary Fiber, Inositol. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Pure Inositol Powder by Only Natural
Ask about any prescription or over-the-counter medication and we check it for interactions with Pure Inositol Powder by Only Natural — 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 Inositol Powder by Only Natural
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
Partial disclosure
Pure Inositol Powder contains one active ingredient: inositol, a naturally occurring compound related to the B vitamins that plays a role in cell signaling and glucose metabolism. The product has no listed inactive ingredients.
Does it work?
Strong evidence
Inositol is possibly effective for polycystic ovary syndrome (PCOS) and metabolic syndrome. It's also possibly effective for preterm labor.
The evidence is less clear for anxiety, diabetic nerve damage (diabetic neuropathy), and depression, where it's rated possibly ineffective — meaning the current data doesn't show a meaningful benefit for those uses.
How safe is it?
Well-documented data
Inositol is generally well tolerated at typical doses. The most common side effects from oral use are diarrhea, gas, and nausea — usually mild and digestive in nature.
In pregnancy, inositol is rated possibly safe, though safety isn't fully established; if you're pregnant or planning to become pregnant, talk with your doctor or pharmacist before taking it. There isn't enough reliable information on inositol during breastfeeding, so check with your doctor before using it if you're nursing.
Meds to double-check
Moderate interaction found
If you take any antidiabetes drugs — insulin, metformin, sulfonylureas, or others — check with your doctor or pharmacist before adding inositol. There's a Moderate risk of low blood sugar if the two are combined without adjusting your diabetes medication dose.
The bottom line
Scorecard at a glancePartially disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
Pure Inositol Powder may be worth considering if you have PCOS, metabolic syndrome, or are at risk for preterm labor and want to explore a possibly effective option. If you take diabetes medication, you'll need to confirm with your doctor or pharmacist that it's safe to combine — blood sugar control could shift.
Talk it over with your own healthcare provider before you start.
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 Oct 10, 2014.
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 Inositol Powder, straight from the product label.
| Brand | Only Natural |
|---|---|
| Barcode (UPC) | 0-27413-00127-1 |
| Net contents | 4 oz.; 112 Gram(s) |
| Market status | On market |
| Date entered into DSLD | Oct 10, 2014 |
| DSLD ID | 37833 |
| Product type | Vitamin |
| Supplement form | Unknown |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Sugar 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 Inositol Powder by Only Natural, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 1 {Calories} | -- |
| Calories from Fat | 0 {Calories} | -- |
| Dietary Fiber | 0 NP | -- |
| Protein | 0 NP | -- |
| Carbohydrates | 0 NP | -- |
| Inositol | 500 mg | -- |
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.
Suggested/Recommended/Usage/Directions
DIRECTIONS: As a dietary supplement, mix one (1) teaspoon daily into food or beverage or as directed by your health care professional.
General Statements
Mixes easily in your favorite food or juice.
Made in USA
Est.1986
Storage
STORE IN A COOL, DRY PLACE
Precautions
KEEP OUT OF THE REACH OF CHILDREN
TAMPER RESISTANT - DO NOT USE IF SEAL IS DAMAGED OR MISSING
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
Formula
No Preservatives, coloring, chemical solvents
Formulation
GUARANTEED FREE OF: yeast, corn, wheat, gluten, salt, sugar, starch preservatives, artificial flavor & color
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Pure Inositol Powder by Only Natural 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 Inositol Powder by Only Natural
These are the 4 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Teaspoon(s) Dosage formUnknown Servings per container225 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.
Dietary Fiber
Interacts with2,025 drugs
Black psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. I...
Dietary Fiber monograph & interactionsProtein
Carbohydrates
Inositol
Interacts with86 drugs
Inositol is a sugar alcohol made naturally in the body and found in many foods, and it is sold as a supplement (often myo-inositol) mainly for PCOS, m...
Inositol monograph & interactionsPure Inositol Powder by Only Natural Drug Interactions
HelloPharmacist Interaction Report
Pure Inositol Powder by Only Natural does interact with one medication category: antidiabetes drugs.
Inositol lowers blood glucose levels, so taking it alongside diabetes medications carries a Moderate risk of low blood sugar (hypoglycemia).
Read the full breakdown — every affected drug type, severity by severity
Clinical research confirms inositol reduces both blood glucose and HbA1c (a marker of long-term blood sugar control) in people with diabetes. If you take any diabetes medication — whether insulin, metformin, or another type — your blood sugar could drop lower than intended.
Altogether, these interactions span 86 individual medications.
Before you start inositol, check your exact diabetes medications with your doctor or pharmacist to see if a dose adjustment is needed or if closer blood sugar monitoring would help.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Pure Inositol 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 Inositol Powder interact with 2,053 drugs. Click any drug to see the details.
2 of the 4 ingredients in Pure Inositol Powder interact with drugs. Each result below shows which ingredient is responsible. Dietary Fiber Inositol
AcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Acarbose interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Acarbose interactionAcetohexamideDymelor
How Acetohexamide interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Acetohexamide interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Acetohexamide interactionAlbiglutideTanzeum
How Albiglutide interacts with Pure Inositol Powder — through 1 ingredient. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Albiglutide interactionAlogliptinNesina
How Alogliptin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Alogliptin interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Alogliptin, Metformin interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Alogliptin, Pioglitazone interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Alogliptin, Pioglitazone interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionCanagliflozinInvokana
How Canagliflozin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Canagliflozin interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Canagliflozin interactionCanagliflozin, MetforminInvokamet
How Canagliflozin, Metformin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Canagliflozin, Metformin interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Canagliflozin, Metformin interactionCanagliflozin, Metformin HydrochlorideInvokamet XR
How Canagliflozin, Metformin Hydrochloride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberMetformin (glucophage), Oral Drugs Moderate
Interaction Summary
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Read the full Dietary Fiber + Canagliflozin, Metformin Hydrochloride interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Canagliflozin, Metformin Hydrochloride interactionCarbamazepineCarbatrol, Carnexiv, Equetro, Tegretol, Tegretol XR
How Carbamazepine interacts with Pure Inositol Powder — through 1 ingredient. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Carbamazepine (tegretol) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Carbamazepine interactionChlorpropamideChlorpropam, Diabinese
How Chlorpropamide interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Chlorpropamide interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Chlorpropamide interactionDapagliflozinFarxiga
How Dapagliflozin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Dapagliflozin interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Dapagliflozin interactionDapagliflozin Propanediol, MetforminXigduo XR
How Dapagliflozin Propanediol, Metformin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberMetformin (glucophage), Oral Drugs Moderate
Interaction Summary
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Read the full Dietary Fiber + Dapagliflozin Propanediol, Metformin interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Dapagliflozin Propanediol, Metformin interactionDapagliflozin Propanediol, Saxagliptin HydrochlorideQtern
How Dapagliflozin Propanediol, Saxagliptin Hydrochloride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Dapagliflozin Propanediol, Saxagliptin Hydrochloride interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Dapagliflozin Propanediol, Saxagliptin Hydrochloride interactionDapagliflozin, Metformin Hydrochloride, Saxagliptin HydrochlorideQternmet XR
How Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberMetformin (glucophage), Oral Drugs Moderate
Interaction Summary
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Read the full Dietary Fiber + Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interactionDasiglucagon HydrochlorideZegalogue
How Dasiglucagon Hydrochloride interacts with Pure Inositol Powder — through 1 ingredient. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Dasiglucagon Hydrochloride interactionDulaglutideTrulicity
How Dulaglutide interacts with Pure Inositol Powder — through 1 ingredient. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Dulaglutide interactionEmpagliflozinJardiance
How Empagliflozin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Empagliflozin interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Empagliflozin interactionEmpagliflozin, Linagliptin, Metformin HydrochlorideTrijardy XR
How Empagliflozin, Linagliptin, Metformin Hydrochloride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Empagliflozin, Linagliptin, Metformin Hydrochloride interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Empagliflozin, Linagliptin, Metformin Hydrochloride interactionEmpagliflozin, MetforminSynjardy
How Empagliflozin, Metformin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberMetformin (glucophage), Oral Drugs Moderate
Interaction Summary
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Read the full Dietary Fiber + Empagliflozin, Metformin interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Empagliflozin, Metformin interactionEmpagliflozin, Metformin HydrochlorideSynjardy XR
How Empagliflozin, Metformin Hydrochloride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Empagliflozin, Metformin Hydrochloride interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Empagliflozin, Metformin Hydrochloride interactionErtugliflozinSteglatro
How Ertugliflozin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Ertugliflozin interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Ertugliflozin interactionErtugliflozin, Metformin HydrochlorideSegluromet
How Ertugliflozin, Metformin Hydrochloride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Ertugliflozin, Metformin Hydrochloride interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Ertugliflozin, Metformin Hydrochloride interactionExenatideBydureon, Byetta
How Exenatide interacts with Pure Inositol Powder — through 1 ingredient. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Exenatide interactionExenatide SyntheticBydureon BCISE
How Exenatide Synthetic interacts with Pure Inositol Powder — through 1 ingredient. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Exenatide Synthetic interactionGliclazideDiamicron
How Gliclazide interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Gliclazide interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Gliclazide interactionGlimepirideAmaryl
How Glimepiride interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Glimepiride interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Glimepiride interactionGlipizideGlucotrol, Glucotrol XL
How Glipizide interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
InositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Glipizide interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Glipizide interactionGlipizide, MetforminMetaglip
How Glipizide, Metformin interacts with Pure Inositol Powder — through 2 ingredients. Tap an ingredient for the detail:
Dietary FiberMetformin (glucophage), Oral Drugs Moderate
Interaction Summary
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Read the full Dietary Fiber + Glipizide, Metformin interactionInositolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Inositol + Glipizide, Metformin interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Pure Inositol Powder with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Dietary Fiber
Carbamazepine (Tegretol)
Theoretically, black psyllium might reduce the effects of carbamazepine and increase the risk for convulsions.
Theoretically, black psyllium might reduce carbamazepine absorption. A preliminary study using blond psyllium reported decreased carbamazepine bioavailability due to binding of the drug to psyllium, as well as reduction of available fluid in the gut for dissolution of the drug. This interaction may also occur with black psyllium.
Lithium
Theoretically, taking black psyllium at the same time as lithium might reduce lithium absorption.
The fiber in black psyllium might reduce lithium absorption and plasma levels. Some case reports describe a reduction in plasma lithium levels with concomitant administration of blond psyllium. This was reversed when psyllium was stopped. This interaction may also occur with black psyllium.
Metformin (Glucophage)
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Animal research shows that concurrent consumption of blond psyllium with metformin slows and increases the absorption of metformin. This interaction may also occur with black psyllium. To avoid changes in absorption, take psyllium 30-60 minutes after metformin.
Olanzapine (Zyprexa)
Theoretically, taking black psyllium at the same time as olanzapine might reduce olanzapine absorption.
The fiber in black psyllium might decrease the absorption of olanzapine. A single case report describes a reduction in the effectiveness of olanzapine when it was concomitantly administered with an unspecified type of psyllium 3 grams orally twice daily. This effect was reversed when psyllium was stopped.
Digoxin (Lanoxin)
Theoretically, taking black psyllium at the same time as digoxin might reduce digoxin absorption and decrease digoxin levels.
Psyllium might bind digoxin in the gut. However, some clinical evidence suggests that psyllium does not impact digoxin absorption.
Ethinyl Estradiol
Theoretically, taking black psyllium at the same time as ethinyl estradiol might alter levels of estradiol.
Concurrent use of blond psyllium with ethinyl estradiol results in a slight increase in the extent of ethinyl estradiol absorption and a slower rate of absorption. This is unlikely to be clinically significant.
Oral Drugs
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Psyllium seems to have variable effects on drug absorption. To avoid changes in absorption, take psyllium 30-60 minutes after oral medications. Animal research shows that blond psyllium delays and increases the absorption of metformin and ethinyl estradiol. Case reports and animal research suggest that blond psyllium might reduce absorption of lithium, digoxin, olanzapine, and carbamazepine. Finally, some pharmacokinetic studies show that psyllium does not affect the absorption of levothyroxine or warfarin. Although many of these studies evaluated blond psyllium, the fiber content in black psyllium may have similar effects.
Inositol
Antidiabetes Drugs
Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research shows that inositol lowers blood glucose levels and glycated hemoglobin (HbA1c) levels in patients with diabetes.
Brand information
Manufacturer and brand details for Pure Inositol Powder, from the product label.
Only Natural
See all Only Natural products- Name
- Only Natural, Inc.
- City
- Island Park
- State
- NY
- ZipCode
- 11558
Pure Inositol Powder by Only Natural: Common Questions
Does Pure Inositol Powder by Only Natural interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does inositol actually work for PCOS?
What are the side effects?
Is it safe to take while pregnant?
Can I take inositol if I take diabetes medication?
What is inositol and why is it in supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Pure Inositol Powder 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 Pure Inositol Powder’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Black Psyllium
Interacts with 2,025 drugsBlack psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. It is best known and most studied for rel...
Read the full Black Psyllium monograph → Herb & supplement monographInositol
Interacts with 86 drugsInositol is a sugar alcohol made naturally in the body and found in many foods, and it is sold as a supplement (often myo-inositol) mainly for PCOS, mood, and metabolic concerns. The stronge...
Read the full Inositol monograph →Sources & How We Checked
Pure Inositol 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 32 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.
Black Psyllium 18 references
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
- Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
- Etman M. Effect of a bulk forming laxative on the bioavailablility of carbamazepine in man. Drug Dev Ind Pharm 1995;21:1901-6.
- Perlman BB. Interaction between lithium salts and ispaghula husk. Lancet 1990;335:416.
- Vaswani SK, Hamilton RG, Valentine MD, Adkinson NF. Psyllium laxative-induced anaphylaxis, asthma, and rhinitis. Allergy 1996;51:266-8. PubMed
- Lantner RR, Espiritu BR, Zumerchik P, Tobin MC. Anaphylaxis following ingestion of a psyllium-containing cereal. JAMA 1990;264:2534-6. DOI
- Kaplan MJ. Anaphylactic reaction to "Heartwise." N Engl J Med 1990;323:1072-3. DOI
- Nordstrom M, Melander A, Robertsson E, Steen B. Influence of wheat bran and of a bulk-forming ispaghula cathartic on the bioavailability of digoxin in geriatric in-patients. Drug Nutr Interact 1987;5:67-9..
- Robinson DS, Benjamin DM, McCormack JJ. Interaction of warfarin and nonsystemic gastrointestinal drugs. Clin Pharmacol Ther 1971;12:491-5. PubMed
- Garcia JJ, Fernandez N, Diez MJ, et al. Influence of two dietary fibers in the oral bioavailability and other pharmacokinetic parameters of ethinyloestradiol. Contraception 2000;62:253-7. PubMed
- Fernandez N, Lopez C, Díez R, et al. Drug interactions with the dietary fiber Plantago ovata husk. Expert Opin Drug Metab Toxicol 2012;8(11):1377-86.
- Semen plantaginis in: WHO Monographs on Selected Medicinal Plants, volume 1. World Health Organization, Geneva, 1999. Available at http://apps.who.int/medicinedocs/en/d/Js2200e/. Accessed November 26, 1026.
- Code of Federal Regulations, Title 21 (21CFR 101.17). Food labeling warning, notice, and safe handling statements. Available at www.ecfr.gov/cgi-bin/text-idx?SID=20f647d3b74161501f46564b915b4048&mc=true&node=se21.2.101_117&rgn=div8. Accessed December 3, 2
- Code of Federal Regulations, Title 21 (21CFR 201.319). Specific labeling requirements - water-soluble gums, hydrophilic gums, and hydrophilic mucilloids. Available at www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=201.319. Accessed Dece
- Diez R, Garcia JJ, Diez MJ, Sierra M, Sahagun AM, Fernandez N. Influence of Plantago ovata husk (dietary fiber) on the bioavailability and other pharmacokinetic parameters of metformin in diabetic rabbits. BMC Complement Altern Med. 2017 Jun 7;17(1):298. PubMed
- Chiu AC, Sherman SI. Effects of pharmacological fiber supplements on levothyroxine absorption. Thyroid. 1998;8(8):667-71. PubMed
- Merrick C, Madden CA, Capurso NA. A Case of Blunted Orally Disintegrating Olanzapine Effect Due to Coadministered Psyllium. J Clin Psychiatry 2021;82(2):20cr13633. PubMed
Inositol 14 references
- Palatnik A, Frolov K, Fux M, Benjamin J. Double-blind, controlled, crossover trial of inositol versus fluvoxamine for the treatment of panic disorder. J Clin Psychopharmacol 2001;21:335-9.. PubMed
- Allan SJ, Kavanagh GM, Herd RM, Savin JA. The effect of inositol supplements on the psoriasis of patients taking lithium: a randomized, placebo-controlled trial. Br J Dermatol 2004;150:966-9. PubMed
- Machado-Vieira R, Viale CI, Kapczinski F. Mania associated with an energy drink: the possible role of caffeine, taurine, and inositol. Can J Psychiatry 2001;46:454-5. PubMed
- Kamenov Z, Kolarov G, Gateva A, Carlomagno G, Genazzani AD. Ovulation induction with myo-inositol alone and in combination with clomiphene citrate in polycystic ovarian syndrome patients with insulin resistance. Gynecol Endocrinol 2015;31(2):131-5. PubMed
- Matarrelli B, Vitacolonna E, D'Angelo M, et al. Effect of dietary myo-inositol supplementation in pregnancy on the incidence of maternal gestational diabetes mellitus and fetal outcomes: a randomized controlled trial. J Matern Fetal Neonatal Med 2013;26(1 PubMed
- Mukai T, Kishi T, Matsuda Y, Iwata N. A meta-analysis of inositol for depression and anxiety disorders. Hum Psychopharmacol 2014;29(1):55-63. PubMed
- Farren M, Daly N, McKeating A, Kinsley B, Turner MJ, Daly S. The Prevention of Gestational Diabetes Mellitus With Antenatal Oral Inositol Supplementation: A Randomized Controlled Trial. Diabetes Care. 2017;40(6):759-63. PubMed
- Zheng X, Liu Z, Zhang Y, et al. Relationship Between Myo-Inositol Supplementary and Gestational Diabetes Mellitus: A Meta-Analysis. Medicine (Baltimore). 2015;94(42):e1604. PubMed
- Crawford TJ, Crowther CA, Alsweiler J, Brown J. Antenatal dietary supplementation with myo-inositol in women during pregnancy for preventing gestational diabetes. Cochrane Database Syst Rev. 2015;(12):CD011507. PubMed
- Maurizi AR, Menduni M, Del Toro R, et al. A pilot study of D-chiro-inositol plus folic acid in overweight patients with type 1 diabetes. Acta Diabetol. 2017;54(4):361-65. PubMed
- Leppink EW, Redden SA, Grant JE. A double-blind, placebo-controlled study of inositol in trichotillomania. Int Clin Psychopharmacol. 2017;32(2):107-14. PubMed
- Lam S, Mandrekar SJ, Gesthalter Y. A Randomized Phase IIb Trial of myo-Inositol in Smokers with Bronchial Dysplasia. Cancer Prev Res (Phila). 2016;9(12):906-14.
- Wozniak J, Faraone SV, Chan J, et al. A randomized clinical trial of high eicosapentaenoic acid omega-3 fatty acids and inositol as monotherapy and in combination in the treatment of pediatric bipolar spectrum disorders: a pilot study. J Clin Psychiatry. PubMed
- Vitale SG, Corrado F, Caruso S, et al. Myo-inositol supplementation to prevent gestational diabetes in overweight non-obese women: bioelectrical impedance analysis, metabolic aspects, obstetric and neonatal outcomes - a randomized and open-label, placebo-
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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.
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