Instant Zen Ingredients & Drug Interactions
by Prima
What is this page for?
First and foremost: checking Instant Zen 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
Instant Zen is a dietary supplement by Prima with 2 active ingredients. Its ingredients are commonly taken for constipation, diarrhea, high cholesterol.Based on those ingredients, 2,100 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dietary Fiber, Hemp Cannabinoids. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Instant Zen by Prima
Ask about any prescription or over-the-counter medication and we check it for interactions with Instant Zen by Prima — 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
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of Instant Zen by Prima
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
Instant Zen is a single-ingredient powder: hemp cannabinoids. The product also contains inactive ingredients (corn fiber, maltodextrin, silicon dioxide, and natural flavors) that serve as fillers and flavor.
Does it work?
Not established
The evidence we hold doesn't establish how well hemp cannabinoids work for any condition. For constipation, atopic dermatitis (eczema), and familial hypercholesterolemia, the rating is insufficient reliable evidence—meaning research is too limited or mixed to draw a solid conclusion.
If you're considering this for a specific health concern, that's a conversation worth having with your doctor or pharmacist, because the data here can't tell you whether it will help.
How safe is it?
Well-documented data
Hemp seed foods are generally well tolerated in everyday amounts. This product is a concentrated supplement, and concentrated extracts are less studied than food forms, so caution is warranted.
Most people don't report side effects, but rare serious ones on record include allergic reactions (ranging from hives to anaphylaxis and facial swelling), and in one case, elevated liver enzymes and hepatitis in a young child given very high doses of hemp extract for seizures. Allergy to hemp seed is uncommon but possible.
Meds to double-check
Moderate interaction found
Check your medications against this product if you take estrogens or hormone therapy (Moderate interaction risk), blood thinners, blood pressure drugs, or any medication your liver metabolizes via CYP1A2 or CYP3A4 enzymes (all Minor). Your pharmacist can search your prescriptions on this page to be sure.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
If you take hormone therapy, blood thinners, blood pressure medications, or drugs metabolized by your liver, you'll want to check this product against your exact medications before starting. Hemp cannabinoids are generally well tolerated in food amounts, but this is a concentrated supplement with less safety history.
Talk to your pharmacist about whether Instant Zen fits your individual situation.
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 Jun 23, 2021.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Instant Zen, straight from the product label.
| Brand | Prima |
|---|---|
| Barcode (UPC) | 850004577318 |
| Net contents | 60 Gram(s) |
| Market status | On market |
| Date entered into DSLD | Jun 23, 2021 |
| DSLD ID | 250661 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Powder |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Instant Zen by Prima, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 10 Calorie(s) | -- |
| Total Carbohydrates | 3 Gram(s) | 1% |
| Dietary Fiber | 2.5 Gram(s) | 9% |
| Hemp Cannabinoids | 15 mg | -- |
Other ingredients: soluble non-GMO Corn Fiber, Maltodextrin, Silicon Dioxide, Natural flavors
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.
Formula
Prima Whole Hemp Meticulously extracted broad-spectrum hemp rich in naturally occurring CBD, terpenes and polyphenols to support balance and overall wellbeing
CBD Powder Blend 20 Stick packs
15 mg hemp CBD per serving
Formulation
Doctor Formulated
Vegan
NON-GMO Gluten-Free No Sweeteners Non-Intoxicating
Consciously formulated without: Wheat, tree nuts, peanuts, eggs, soy, dairy, artificial-colors or artificial flavors
For balance of body & mind
Believe in better. Every little thing, is gonna be alright... thanks to our broad spectrum hemp CBD beverage infusion made to align and activate the natural body systems that support stress, mood, sleep and immunity. We use an innovative encapsulation process to adapt our pure, whole plant hemp extract into a water-soluble format that is designed to be more bioavailable and as effective as possible. Finding your zen just got infinitely easier.
Taste: Clean & pleasant, with notes of cucumber
Made in California with thoughtfully sourced global materials
3rd-Party purity & potency testing: Scan the QR Code or go to prima.co/batch to see full results.
General Statements
100% Clean. 0% Questionable.
Transparency matters. We value human connection: prima.co/hi Adverse health events: 855-744-6226
Recycle 100% FSC FPO
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Pairs with: - A glass of water - Coffee or tea - Juice - Smoothies Perfect for: - A deep exhale for body & mind - Post workout support
Directions: Mix into water or your favorite warm or cold beverage to find balance. For best results, pour powder first, then add liquid.
Precautions
Caution: As with any dietary supplement, consult your healthcare provider prior to use, especially if you are pregnant, nursing, take medication on a regular basis or if you have a medical condition.
Keep out of reach of children.
Do not use if seal is broken.
Storage
Store in a cool, dry place.
Seals/Symbols
Certified B Corporation
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.
Brand IP Statement(s)
Copyright 2020 The Uplifters’ Prima, PBC
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Instant Zen by Prima 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 Instant Zen by Prima
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size3 Gram(s) Dosage formPowder Servings per container20 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 & interactionsHemp Cannabinoids
Interacts with938 drugs
Hemp seeds and hemp seed oil are nutritious foods rich in protein, fiber, and healthy omega-3 and omega-6 fatty acids, and they are generally safe for...
Hemp Cannabinoids monograph & interactionsOther (inactive) ingredients: Soluble non-GMO Corn Fiber, Maltodextrin, Silicon Dioxide, Natural flavors. These complete the product’s ingredient list but are not active constituents.
Instant Zen by Prima Drug Interactions
HelloPharmacist Interaction Report
Instant Zen by Prima contains hemp cannabinoids, which have documented interactions with several medication types.
The most serious is a Moderate interaction with estrogens (hormone therapy): hemp may interfere with how your body handles estrogen, theoretically reducing the drug's effectiveness. Animal research shows hemp can normalize estrogen levels, though the exact mechanism isn't clear yet.
Read the full breakdown — every affected drug type, severity by severity
Hemp also has Minor interactions with blood thinners (anticoagulant and antiplatelet drugs). Animal studies suggest hemp seed might inhibit clotting, but human research taking hemp seed oil for 12 weeks showed no effect on platelet function—so the real-world risk remains unclear.
There are also Minor interactions with blood pressure medications (both ACE inhibitors and general antihypertensives): hemp seed protein in animal models lowered blood pressure in ways similar to these drugs, raising the theoretical risk of blood pressure dropping too low.
Additionally, hemp may affect how your liver breaks down certain medications. In vitro research shows hemp induces two liver enzymes (CYP1A2 and CYP3A4), which theoretically could speed up the clearance of drugs that depend on those pathways and reduce their effectiveness.
Altogether, these interactions span 927 individual medications. Check your exact prescriptions using the tool on this page before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Instant Zen?
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 Instant Zen interact with 2,100 drugs. Click any drug to see the details.
2 of the 2 ingredients in Instant Zen interact with drugs. Each result below shows which ingredient is responsible. Dietary Fiber Hemp Cannabinoids
Acetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Dietary 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 + Acetylsalicylic Acid interactionHemp CannabinoidsAnticoagulant/antiplatelet Drugs Minor
Interaction Summary
Theoretically, hemp seed might increase the risk of bleeding when used concomitantly with anticoagulant/antiplatelet drugs.
Read the full Hemp Cannabinoids + Acetylsalicylic Acid interactionAcitretinSoriatane
How Acitretin interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Acitretin interactionAcrivastine, PseudoephedrineSemprex D
How Acrivastine, Pseudoephedrine interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Acrivastine, Pseudoephedrine interactionAcyclovirAvaclyr, Sitavig, Zovirax, Zovirax Injection
How Acyclovir interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Acyclovir interactionAdagrasibKrazati
How Adagrasib interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Hemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Adagrasib 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 + Adagrasib interactionAdalimumab-bwwdHadlima
How Adalimumab-bwwd interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Adalimumab-bwwd interactionAdefovirHepsera
How Adefovir interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Adefovir interactionAdenosineATP Tablets
How Adenosine interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Adenosine interactionAfatinib DimaleateGilotrif
How Afatinib Dimaleate interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Afatinib Dimaleate interactionAgomelatineValdoxan
How Agomelatine interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Dietary 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 + Agomelatine interactionHemp CannabinoidsCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Hemp Cannabinoids + Agomelatine interactionAlbendazoleAlbenza
How Albendazole interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Albendazole interactionAlbuterolProAir HFA, Proventil, Ventolin (U.S.), Volmax
How Albuterol interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Albuterol interactionAlcuroniumAlcuronium
How Alcuronium interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alcuronium interactionAlectinib HydrochlorideAlecensa
How Alectinib Hydrochloride interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alectinib Hydrochloride interactionAlemtuzumabCampath
How Alemtuzumab interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alemtuzumab interactionAlendronateBinosto, Fosamax
How Alendronate interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alendronate interactionAlendronate Sodium
How Alendronate Sodium interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alendronate Sodium interactionAlendronate Sodium, CholecalciferolFosamax Plus D
How Alendronate Sodium, Cholecalciferol interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alendronate Sodium, Cholecalciferol interactionAlfentanilAlfenta
How Alfentanil interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Dietary 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 + Alfentanil interactionHemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Alfentanil interactionAlfuzosinUroxatral
How Alfuzosin interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Hemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Alfuzosin 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 + Alfuzosin interactionAlginic Acid, Aluminum HydroxideRafton
How Alginic Acid, Aluminum Hydroxide interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alginic Acid, Aluminum Hydroxide interactionAliskirenTekturna
How Aliskiren interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Dietary 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 + Aliskiren interactionHemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates, Antihypertensive Drugs Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Aliskiren interactionAlitretinoinPanretin
How Alitretinoin interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alitretinoin interactionAllopurinolCaplenal, Cosuric, Rimapurinol, Zyloprim, Zyloric
How Allopurinol interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Allopurinol interactionAlmotriptanAlmogran, Axert
How Almotriptan interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Dietary 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 + Almotriptan interactionHemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Almotriptan interactionAlogliptinNesina
How Alogliptin interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Hemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + 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, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Dietary 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 interactionHemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Alogliptin, Pioglitazone interactionAlosetronLotronex
How Alosetron interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alosetron interactionAlpelisibPiqray
How Alpelisib interacts with Instant Zen — through 2 ingredients. Tap an ingredient for the detail:
Hemp CannabinoidsCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Hemp Cannabinoids + Alpelisib 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 + Alpelisib interactionAlpha 1-proteinaseZemaira
How Alpha 1-proteinase interacts with Instant Zen — through 1 ingredient. Tap an ingredient for the detail:
Dietary 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 + Alpha 1-proteinase interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Instant Zen 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.
Hemp Cannabinoids
Estrogens
Theoretically, hemp might interfere with hormone therapy due to its estrogenic effects.
In an ovariectomized animal model, a diet containing hemp seed 1%, 2%, or 10% resulted in normalized plasma levels of 17-beta-estradiol. The mechanism of action for this effect is unclear.
Ace Inhibitors (Aceis)
Theoretically, consuming hemp seed protein isolate with ACE inhibitors might have additive effects and increase the risk of hypotension.
Hemp seed protein hydrolysate has shown ACE inhibitor-like effects in a hypertensive animal model. However, hempseed oil consumption does not seem to reduce blood pressure in humans. Until more is known, monitor blood pressure and potassium levels.
Anticoagulant/Antiplatelet Drugs
Theoretically, hemp seed might increase the risk of bleeding when used concomitantly with anticoagulant/antiplatelet drugs.
In animal research, hemp seed at 5% of the diet inhibits platelet aggregation in vitro. However, in human research, taking hemp seed oil 2 grams daily for 12 weeks does not inhibit the aggregation of platelets in vitro.
Antihypertensive Drugs
Theoretically, hemp seed protein may have additive effects with antihypertensive drugs.
In a hypertensive animal model, hemp seed protein hydrolysate reduced systolic blood pressure by a mechanism possibly involving the inhibition of renin and angiotensin converting enzyme (ACE) activities. However, there was no effect of hemp seed protein on blood pressure in normotensive animals. Furthermore, hempseed oil consumption does not seem to reduce blood pressure in humans.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, hemp might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that hemp induces CYP1A2 enzymes.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, hemp might decrease the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that hemp induces CYP3A4 enzymes.
Brand information
Manufacturer and brand details for Instant Zen, from the product label.
Prima
- Name
- The Uplifters' Prima, PBC (a Public Benefit Corp.)
- City
- Santa Monica
- State
- CA
- ZipCode
- 90401
- Phone Number
- 855-744-6226
- Web Address
- prima.co
Instant Zen by Prima: Common Questions
Does Instant Zen by Prima interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take Instant Zen if I'm on birth control or hormone therapy?
What are hemp cannabinoids?
Is Instant Zen safe to use if I have no medications?
Does this product actually work for constipation, eczema, or high cholesterol?
Does Instant Zen contain any fillers?
What if I have a hemp allergy?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Instant Zen 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 Instant Zen’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 monographHemp
Interacts with 938 drugsHemp seeds and hemp seed oil are nutritious foods rich in protein, fiber, and healthy omega-3 and omega-6 fatty acids, and they are generally safe for most people as part of the diet. While...
Read the full Hemp monograph →Sources & How We Checked
Instant Zen'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 30 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
Hemp 12 references
- Kaul N, Kreml R, Austria JA, et al. A comparison of fish oil, flaxseed oil and hempseed oil supplementation on selected parameters of cardiovascular health in healthy volunteers. J Am Coll Nutr 2008;27:51-8. PubMed
- Saberivand A, Karimi I, Becker LA, et al. The effects of Cannabis sativa L. seed (hempseed) in the ovariectomized rat model of menopause. Methods Find Exp Clin Pharmacol. 2010;32(7):467-73. PubMed
- Girgih AT, Alashi A, He R, Malomo S, Aluko RE. Preventive and treatment effects of a hemp seed (Cannabis sativa L.) meal protein hydrolysate against high blood pressure in spontaneously hypertensive rats. Eur J Nutr. 2014;53(5):1237-46. PubMed
- Richard MN, Ganguly R, Steigerwald SN, Al-Khalifa A, Pierce GN. Dietary hempseed reduces platelet aggregation. J Thromb Haemost. 2007;5(2):424-5. PubMed
- Stadtmauer G, Beyer K, Bardina L, Sicherer SH. Anaphylaxis to ingestion of hempseed (Cannabis sativa). J Allergy Clin Immunol. 2003;112(1):216-7. PubMed
- Del Bo' C, Deon V, Abello F, et al. Eight-week hempseed oil intervention improves the fatty acid composition of erythrocyte phospholipids and the omega-3 index, but does not affect the lipid profile in children and adolescents with primary hyperlipidemia. PubMed
- Alkhammash S, Tsui H, Thomson DMP. Cannabis and hemp seed allergy. J Allergy Clin Immunol Pract. 2019;7(7):2429-2430.e1. PubMed
- Stokes JR, Hartel R, Ford LB, Casale TB. Cannabis (hemp) positive skin tests and respiratory symptoms. Ann Allergy Asthma Immunol. 2000;85(3):238-40. PubMed
- Déléaval M, Burri H, Bakelants E. Harmless herbs? A case report of acquired long QT syndrome and torsades de pointes in a patient taking herbal supplements. HeartRhythm Case Rep 2022;8(5):309-12. PubMed
- Singh M, Sehgal M, Yacoub M, et al. Severe liver dysfunction in a toddler receiving nonprescription phytocannabinoid. J Am Pharm Assoc (2003) 2022;62(4):1438-1440. PubMed
- Clark E, Nilsson U, Samaran Q, Raison-Peyron N. Allergic contact dermatitis from Cannabis sativa (hemp) seed oil. Contact Dermatitis 2022;87(3):292-293.
- Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. 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