Instaflex PM Ingredients & Drug Interactions
by Instaflex
What is this page for?
First and foremost: checking Instaflex PM 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
Instaflex PM is a dietary supplement by Instaflex with 5 active ingredients. Its ingredients are commonly taken for anxiety and stress, sleep problems, relaxation.Based on those ingredients, 1,378 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Ashwagandha Root Extract, Passionflower extract, Gamma-Aminobutyric Acid. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Instaflex PM by Instaflex
Ask about any prescription or over-the-counter medication and we check it for interactions with Instaflex PM by Instaflex — 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 Instaflex PM by Instaflex
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
Instaflex PM contains five active ingredients. GABA is a brain chemical that may help with relaxation.
Ashwagandha root extract is an herb traditionally used to manage stress and sleep. Levagen+ is a form of palmitoylethanolamide (PEA), a naturally occurring compound studied for joint and nerve comfort.
Passionflower extract is an herb used to support sleep and calm. The product also contains three inactive ingredients — gelatin, magnesium stearate, and rice husks concentrate — which are fillers and capsule materials.
Does it work?
Moderate evidence
Ashwagandha is possibly effective for insomnia, anxiety, stress, and generalized anxiety disorder. Passionflower extract is possibly effective for insomnia and pre-procedural anxiety.
Levagen+ (PEA) is possibly effective for osteoarthritis. GABA has insufficient reliable evidence for the conditions it's studied in — anxiety, ADHD, athletic performance, and cerebral palsy — meaning the evidence we hold doesn't support claims about how well it works.
For the other conditions listed on various product labels, we have no effectiveness data on file.
How safe is it?
Well-documented data
Ashwagandha is traditionally thought to carry a risk of miscarriage, so the data advises against it during pregnancy; there isn't enough safety information to know if it's safe while breastfeeding, so talk with your doctor or pharmacist for personalized advice. Passionflower lacks safety data in pregnancy and is considered possibly unsafe; breastfeeding safety isn't established either.
For Levagen+ (PEA) and GABA, there isn't enough information to know whether they're safe in pregnancy or while breastfeeding — speak with your doctor or pharmacist. Common side effects from GABA include drowsiness, nausea, stomach upset, muscle weakness, and minor throat burning.
Ashwagandha may cause diarrhea, nausea, vomiting, and stomach upset, though these don't happen often at typical doses. Passionflower commonly causes drowsiness, dizziness, and confusion.
Long-term safety for all ingredients is not well studied.
Meds to double-check
Moderate interaction found
Before taking Instaflex PM, check with your doctor or pharmacist if you take blood pressure medications (ashwagandha and GABA may lower blood pressure further), sedating drugs or benzodiazepines (three ingredients may intensify drowsiness), diabetes medications (ashwagandha may lower blood sugar), liver-toxic drugs (ashwagandha raises liver damage risk), thyroid hormones (ashwagandha may boost their effects), immune-suppressing drugs (ashwagandha may weaken them), or medications processed by your liver through CYP3A4 or CYP1A2 pathways (ashwagandha and passionflower may affect levels). These are Moderate-severity concerns — don't skip this step.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Instaflex PM is designed to support sleep and relaxation through ashwagandha, passionflower, and GABA, with Levagen+ for joint support. If you take blood pressure medications, sedating drugs, diabetes medications, thyroid hormones, or anything that affects the liver or immune system, you need to check this product with your doctor or pharmacist before starting — the interactions are real and could affect how your medications work.
Pregnant or breastfeeding? Talk with your doctor or pharmacist first.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 4 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 16, 2022.
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 Instaflex PM, straight from the product label.
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Instaflex PM by Instaflex, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Gamma-Aminobutyric Acid | 100 mg | -- |
| Ashwagandha Root Extract | 75 mg | -- |
| Levagen+ | 300 mg | -- |
| TamaFlex | 250 mg | -- |
| Passionflower extract | 50 mg | -- |
Other ingredients: Gelatin, Magnesium Stearate, Rice Husks Concentrate
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation
Powerful joint relief works while you sleep! Instaflex PM is uniquely formulated with Levagen+, a clinically validated ingredient that relieves joint discomfort and supports a healthy inflammatory response. It works like CBD by targeting pathways in the body’s endocannabinoid system. But you can rest easy knowing Instaflex PM is entirely safe, legal, and non-habit forming!
Nighttime joint support
Works like CBD Doctor formulated Targets endocannabinoid system Joint relief in 5 days Supports restful sleep
Formula
We’ve also added TamaFlex, a powerful blend of turmeric and tamarind extracts. It’s been shown to decrease stiffness and increase mobility in just 5 days—with results that grow over time. And we added GABA for deeper sleep, so you wake up feeling rejuvenated and like the best is yet to come!
Featuring Levagen+
Precautions
Precautions: Only for adults over 18 years.
Use only as directed.
Consult your healthcare practitioner if you have or suspect a medical condition, are pregnant or nursing, or if you use any medications, as certain ingredients may alter their potency and/or side effects.
Discontinue use two weeks prior to surgery or if any serious adverse reaction occurs. Do not use if safety seal is missing.
Keep out of the reach of children.
Storage
Keep product at room temperature and humidity [59-86 degrees F (15-30 degrees C), 40% RH].
Brand IP Statement(s)
Levagen+ is a trademark of Gencor. TamaFlex is a trademark of NXT USA, Inc. Patents Pending.
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
Suggested/Recommended/Usage/Directions
Two small capsules nightly Adult Usage: Take two (2) capsules with or without food, 30-60 minutes before bedtime.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Instaflex PM by Instaflex 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 Instaflex PM by Instaflex
These are the 5 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 Capsule(s) Dosage formCapsule Servings per container30 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.
Gamma-Aminobutyric Acid
Interacts with419 drugs
GABA is a calming chemical messenger (neurotransmitter) that your body makes on its own, and it is sold as a supplement for stress, anxiety, and sleep...
Gamma-Aminobutyric Acid monograph & interactionsAshwagandha Root Extract
Interacts with1,372 drugs
Ashwagandha is an Ayurvedic herb most often taken to help with stress, anxiety, and sleep, and some small studies suggest it may help, though the evid...
Ashwagandha Root Extract monograph & interactionsLevagen+
No knowninteractions
Palmitoylethanolamide (PEA) is a fat-like molecule made naturally in the body and studied mainly for pain and inflammation. Some research suggests it...
Levagen+ monograph & interactionsTamaFlex
Passionflower extract
Interacts with836 drugs
Passion flower is a traditional calming herb that many people use for anxiety and sleep. Early studies hint it may help with mild anxiety and restless...
Passionflower extract monograph & interactionsOther (inactive) ingredients: Gelatin, Magnesium Stearate, Rice Husks Concentrate. These complete the product’s ingredient list but are not active constituents.
Instaflex PM by Instaflex Drug Interactions
HelloPharmacist Interaction Report
Instaflex PM has documented interactions with medications through its GABA, ashwagandha, and passionflower extract content.
The most serious concern is ashwagandha's potential to damage the liver when combined with other drugs that are toxic to the liver (hepatotoxic drugs) — a Moderate-severity interaction. Ashwagandha also carries Moderate-severity risks with blood pressure medications, sedating drugs, benzodiazepines, diabetes medications, thyroid hormones, and drugs that suppress the immune system.
GABA adds Moderate-severity risk with blood pressure medications and Minor risk with other sedating drugs. Passionflower extract carries Moderate-severity risk with sedating drugs and Minor risk with certain heart and other medications that are processed through specific liver pathways.
Read the full breakdown — every affected drug type, severity by severity
We could not check one ingredient — TamaFlex — because we hold no data for it. Before you start Instaflex PM, check your exact medications with the search tool on this page.
Altogether, these interactions span 1,379 individual medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Instaflex PM?
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 Instaflex PM interact with 1,378 drugs. Click any drug to see the details.
3 of the 5 ingredients in Instaflex PM interact with drugs. Each result below shows which ingredient is responsible. Ashwagandha Root Extract Passionflower extract Gamma-Aminobutyric Acid
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs, Immunosuppressants Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + 6-mercaptopurine interactionAbacavir Sulfate, Dolutegravir, LamivudineTriumeq
How Abacavir Sulfate, Dolutegravir, Lamivudine interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + Abacavir Sulfate, Dolutegravir, Lamivudine interactionAbacavir, LamivudineEpzicom
How Abacavir, Lamivudine interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + Abacavir, Lamivudine interactionAbiraterone
How Abiraterone interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Abiraterone interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + Abiraterone Acetate interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, taking ashwagandha might decrease the effects of immunosuppressants.
Read the full Ashwagandha Root Extract + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractAntidiabetes Drugs, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, taking ashwagandha with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Ashwagandha Root Extract + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs, Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + Acebutolol interactionGamma-aminobutyric AcidAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, taking GABA with antihypertensive drugs might increase the risk of hypotension.
Read the full Gamma-aminobutyric Acid + Acebutolol interactionAcepromazineAtravet
How Acepromazine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Passionflower ExtractCns Depressants Moderate
Interaction Summary
Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Read the full Passionflower Extract + Acepromazine interactionAshwagandha Root ExtractCns Depressants Moderate
Interaction Summary
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Read the full Ashwagandha Root Extract + Acepromazine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acepromazine interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs +1 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Aspirin, Caffeine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Instaflex PM — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs +1 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Butalbital, Caffeine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Passionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAshwagandha Root ExtractCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Read the full Ashwagandha Root Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs +1 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Butalbital, Codeine interactionPassionflower ExtractCns Depressants Moderate
Interaction Summary
Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Read the full Passionflower Extract + Acetaminophen, Butalbital, Codeine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCns Depressants, Hepatotoxic Drugs +1 Moderate
Interaction Summary
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Read the full Ashwagandha Root Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionPassionflower ExtractCns Depressants Moderate
Interaction Summary
Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Read the full Passionflower Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs +2 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Read the full Ashwagandha Root Extract + Acetaminophen, Caffeine, Codeine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Caffeine, Codeine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Hepatotoxic Drugs +2 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionPassionflower ExtractCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Read the full Passionflower Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Passionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAshwagandha Root ExtractCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Read the full Ashwagandha Root Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs, Cytochrome P450 1a2 (cyp1a2) Substrates +1 Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + Acetaminophen, Caffeine, Isometheptene interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Hepatotoxic Drugs +1 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Caffeine, Pyrilamine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Instaflex PM — through 3 ingredients. Tap an ingredient for the detail:
Passionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAshwagandha Root ExtractCns Depressants, Hepatotoxic Drugs +3 Moderate
Interaction Summary
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Read the full Ashwagandha Root Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionGamma-aminobutyric AcidCns Depressants Minor
Interaction Summary
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants.
Read the full Gamma-aminobutyric Acid + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractSerotonergic Drugs, Hepatotoxic Drugs +2 Moderate
Interaction Summary
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors.
Read the full Ashwagandha Root Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +2 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractHepatotoxic Drugs, Serotonergic Drugs +2 Moderate
Interaction Summary
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Read the full Ashwagandha Root Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Instaflex PM — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionPassionflower ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
Read the full Passionflower Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Instaflex PM 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.
Ashwagandha Root Extract
Antidiabetes Drugs
Theoretically, taking ashwagandha with antidiabetes drugs might increase the risk of hypoglycemia.
There is preliminary clinical evidence suggesting that ashwagandha might lower blood glucose levels. Theoretically, ashwagandha might have additive effects when used with antidiabetes drugs and increase the risk of hypoglycemia.
Antihypertensive Drugs
Theoretically, taking ashwagandha with antihypertensive drugs might increase the risk of hypotension.
Animal research suggests that ashwagandha might lower systolic and diastolic blood pressure. Theoretically, ashwagandha might have additive effects when used with antihypertensive drugs and increase the risk of hypotension.
Benzodiazepines
Theoretically, taking ashwagandha might increase the sedative effects of benzodiazepines.
There is preliminary evidence that ashwagandha might have an additive effect with diazepam (Valium) and clonazepam (Klonopin). This may also occur with other benzodiazepines.
Cns Depressants
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Ashwagandha seems to have sedative effects. Theoretically, this may potentiate the effects of barbiturates, other sedatives, and anxiolytics.
Hepatotoxic Drugs
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Ashwagandha has been linked to cases of acute hepatitis, liver failure, hepatic encephalopathy, autoimmune hepatitis, the need for liver transplantation, and death due to liver failure.
Immunosuppressants
Theoretically, taking ashwagandha might decrease the effects of immunosuppressants.
Ashwagandha has demonstrated immunostimulant effects in humans. Animal research has shown that ashwagandha can attenuate the immunosuppression caused by cyclophosphamide.
Thyroid Hormone
Ashwagandha might increase the effects and adverse effects of thyroid hormone.
Concomitant use of ashwagandha with thyroid hormones may cause additive therapeutic and adverse effects. Preliminary clinical research and animal studies suggest that ashwagandha boosts thyroid hormone synthesis and secretion. In one clinical study, ashwagandha increased triiodothyronine (T3) and thyroxine (T4) levels by 41.5% and 19.6%, respectively, and reduced serum TSH levels by 17.4% from baseline in adults with subclinical hypothyroidism.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that ashwagandha extract induces CYP1A2 enzymes.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that ashwagandha extract induces CYP3A4 enzymes.
Serotonergic Drugs
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors. However, there is no evidence to suggest that ashwagandha increases the risk of serotonin-related effects, and there have been no published case reports of serotonin syndrome when combined with other serotonergic drugs. Nevertheless, due to the lack of extensive studies on the matter and the fact that ashwagandha appears to affect serotonergic pathways, it would be prudent to exercise caution when combining it with drugs that affect serotonin. [References: - Effects of Withania somnifera (Ashwaga ndha) on Stress and the Stress-Related Neuropsychiatric Disorders Anxiety, Depression, and Insomnia. Curr Neuropharmacol. 2021 Sep 14; 19: 1468–1495. - A Prospective, Randomized Double-Blind, Placebo-Controlled Study of Safety and Efficacy of a High-Concentration Full-Spectrum Extract of Ashwagandha Root in Reducing Stress and Anxiety in Adults. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3573577/]
Passionflower extract
Cns Depressants
Concomitant use of passion flower with sedative drugs might cause additive effects and side effects.
Research in animals and humans shows that passion flower has sedative effects which can be additive when used with sedative medications like lorazepam.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, passion flower might decrease the effects of CYP3A4 substrates.
In vitro research suggests that passion flower can induce CYP3A4 enzymes, albeit to a much lower degree than rifampin, a known CYP3A4 inducer.
Organic Anion-Transporting Polypeptide Substrates (Oatp)
Theoretically, passion flower might reduce the bioavailability of OATP2B1 and OATP1A2 substrates.
In vitro research shows that the passion flower constituents apigenin and vitexin inhibit OATP2B1 and OATP1A2. This inhibition may be dose-dependent. One specific high-flavonoid passion flower extract (Valverde) seems to inhibit OATP2B1 and OATP1A2, while another extract with a lower flavonoid concentration (Arkocaps) shows less potent inhibition. OATPs are responsible for the uptake of drugs and other compounds into the body; however, the specific activities of OATP2B1 and OATP1A2 are not well characterized.
Gamma-Aminobutyric Acid
Antihypertensive Drugs
Theoretically, taking GABA with antihypertensive drugs might increase the risk of hypotension.
Some clinical research shows that GABA can decrease blood pressure in patients with hypertension.
Cns Depressants
Theoretically, GABA might have additive sedative effects when used in conjunction with CNS depressants. However, it is unclear if this concern is clinically relevant.
Endogenous GABA has well-established relaxant effects and GABA(A) receptors have an established physiological role in sleep. However, the effects of GABA supplements are unclear, as it is unknown whether exogenous GABA crosses the blood-brain barrier. Although there have been limited reports of drowsiness or tiredness with GABA supplements, these effects have not been widely reported in clinical studies. Additionally, intravenous GABA 0.1-1 mg/kg has been shown to induce anxiety in a dose-dependent manner.
Brand information
Manufacturer and brand details for Instaflex PM, from the product label.
Instaflex
See all Instaflex products- Name
- Adaptive Health
- City
- Charlotte
- State
- NC
- ZipCode
- 28202
- Phone Number
- 1-800-436-0920
- Web Address
- www.INSTAFLEX.com
Instaflex PM by Instaflex: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Instaflex PM’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Gamma-aminobutyric Acid (gaba)
Interacts with 419 drugsGABA is a calming chemical messenger (neurotransmitter) that your body makes on its own, and it is sold as a supplement for stress, anxiety, and sleep. The science behind oral GABA supplemen...
Read the full Gamma-aminobutyric Acid (gaba) monograph → Herb & supplement monographAshwagandha
Interacts with 1,372 drugsAshwagandha is an Ayurvedic herb most often taken to help with stress, anxiety, and sleep, and some small studies suggest it may help, though the evidence is still limited. It is generally w...
Read the full Ashwagandha monograph → Herb & supplement monographPalmitoylethanolamide (pea)
Palmitoylethanolamide (PEA) is a fat-like molecule made naturally in the body and studied mainly for pain and inflammation. Some research suggests it may help certain types of chronic and ne...
Read the full Palmitoylethanolamide (pea) monograph → Herb & supplement monographPassion Flower
Interacts with 836 drugsPassion flower is a traditional calming herb that many people use for anxiety and sleep. Early studies hint it may help with mild anxiety and restlessness, but the evidence is limited and mo...
Read the full Passion Flower monograph →Sources & How We Checked
Instaflex PM'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 67 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.
Gamma-aminobutyric Acid (gaba) 12 references
- Cavagnini F, Invitti C, Pinto M, et al. Effect of acute and repeated administration of gamma aminobutyric acid (GABA) on growth hormone and prolactin secretion in man. Acta Endocrinol (Copenh) 1980;93:149-54.
- Nurnberger JI Jr, Berrettini WH, Simmons-Alling S, et al. Intravenous GABA administration is anxiogenic in man. Psychiatry Res 1986;19:113-7. PubMed
- Gershman RN, Vasilenko MA, Iliushina GG, et al. [Gammalon in the rehabilitation in infantile cerebral palsy]. Pediatr.Akus.Ginekol. 1977;(6):26-7.
- Loeb C, Benassi E, Bo, GP, et al. Preliminary evaluation of the effect of GABA and phosphatidylserine in epileptic patients. Epilepsy Res. 1987;1:209-12 . PubMed
- Inoue K, Shirai T, Ochiai H, et al. Blood-pressure-lowering effect of a novel fermented milk containing gamma-aminobutyric acid (GABA) in mild hypertensives. Eur J Clin Nutr 2003;57:490-95.
- ELLIOTT, K. A. and JASPER, H. H. Gammaaminobutyric acid. Physiol Rev. 1959;39(2):383-406.
- Winsky-Sommerer, R. Role of GABAA receptors in the physiology and pharmacology of sleep. Eur.J.Neurosci. 2009;29(9):1779-1794.
- Meldrum, B. S. GABAergic mechanisms in the pathogenesis and treatment of epilepsy. Br.J.Clin.Pharmacol. 1989;27 Suppl 1:3S-11S. PubMed
- Loeb, C., Marinari, U. M., Benassi, E., Besio, G., Cottalasso, D., Cupello, A., Maffini, M., Mainardi, P., Pronzato, M. A., and Scotto, P. A. Phosphatidylserine increases in vivo the synaptosomal uptake of exogenous GABA in rats. Exp.Neurol. 1988;99(2):4 PubMed
- Melis, G. B., Paoletti, A. M., Mais, V., and Fioretti, P. Interference of dopamine infusion on gamma-amino butyric acid (GABA)-stimulated prolactin increase. J.Endocrinol.Invest 1980;3(4):445-448.
- Boonstra E, de Kleijn R, Colzato LS, Alkemade A, Forstmann BU, Nieuwenhuis S. Neurotransmitters as food supplements: the effects of GABA on brain and behavior. Front Psychol. 2015 Oct 6;6:1520. doi: 10.3389/fpsyg.2015.01520. eCollection 2015. PubMed
- de Bie TH, Witkamp RF, Balvers MG, Jongsma MA. Effects of ?-aminobutyric acid supplementation on glucose control in adults with prediabetes: A double-blind, randomized, placebo-controlled trial. Am J Clin Nutr 2023;118(3):708-719. PubMed
See these in context on the Gamma-aminobutyric Acid (gaba) monograph →
Ashwagandha 32 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.
- Upton R, ed. Ashwagandha Root (Withania somnifera): Analytical, quality control, and therapuetic monograph. Santa Cruz, CA: American Herbal Pharmacopoeia 2000:1-25.
- Davis L, Kuttan G. Effect of Withania somnifera on cyclophosphamide-induced urotoxicity. Cancer Lett 2000;148:9-17. PubMed
- Davis L, Kuttan G. Suppressive effect of cyclophosphamide-induced toxicity by Withania somnifera extract in mice. J Ethnopharmacol 1998;62:209-14. PubMed
- Mishra LC, Singh BB, Dagenais S. Scientific basis for the therapeutic use of Withania somnifera (ashwagandha): a review. Altern Med Rev 2000;5:334-46. DOI
- Andallu B, Radhika B. Hypoglycemic, diuretic and hypocholesterolemic effect of winter cherry (Withania somnifera, Dunal) root. Indian J Exp Biol 2000;38:607-9.
- Kulkarni RR, Patki PS, Jog VP, et al. Treatment of osteoarthritis with a herbomineral formulation: a double-blind, placebo-controlled, cross-over study. J Ethnopharmacol 1991;33:91-5. PubMed
- Ahumada F, Aspee F, Wikman G, Hancke J. Withania somnifera exract. Its effects on arterial blood pressure in anaesthetized dogs. Phytother Res 1991;5:111-14.
- Panda S, Kar A. Withania somnifera and Bauhinia purpurea in the regulation of circulating thyroid hormone concentrations in female mice. J Ethnopharmacol 1999;67:233-39. PubMed
- Panda S, Kar A. Changes in thyroid hormone concentrations after administration of ashwagandha root extract to adult male mice. J Pharm Pharmacol 1998;50:1065-68. PubMed
- Sehgal, V. N., Verma, P., and Bhattacharya, S. N. Fixed-drug eruption caused by ashwagandha (Withania somnifera): a widely used Ayurvedic drug. Skinmed. 2012;10(1):48-49.
- Agnihotri AP, Sontakke SD, Thawani VR, Saoji A, Goswami VS. Effects of Withania somnifera in patients of schizophrenia: a randomized, double blind, placebo controlled pilot trial study. Indian J Pharmacol. 2013;45(4):417-8. PubMed
- Biswal BM, Sulaiman SA, Ismail HC, Zakaria H, Musa KI. Effect of Withania somnifera (Ashwagandha) on the development of chemotherapy-induced fatigue and quality of life in breast cancer patients. Integr Cancer Ther. 2013;12(4):312-22.
- Sharma AK, Basu I, Singh S. Efficacy and safety of Ashwagandha root extract in subclinical hypothyroid patients: a double-blind, randomized placebo-controlled trial. J Altern Complement Med. 2018 Mar;24(3):243-248. PubMed
- Durg S, Bavage S, Shivaram SB. Withania somnifera (Indian ginseng) in diabetes mellitus: A systematic review and meta-analysis of scientific evidence from experimental research to clinical application. Phytother Res. 2020;34(5):1041-1059.
- Björnsson HK, Björnsson ES, Avula B, et al. Ashwagandha-induced liver injury: A case series from Iceland and the US Drug-Induced Liver Injury Network. Liver Int. 2020;40(4):825-829. PubMed
- Tharakan A, Shukla H, Benny IR, Tharakan M, George L, Koshy S. Immunomodulatory Effect of Withania somnifera (Ashwagandha) Extract-A Randomized, Double-Blind, Placebo Controlled Trial with an Open Label Extension on Healthy Participants. J Clin Med 2021;1 PubMed
- Ireland PJ, Hardy T, Burt AD, Donnelly MC. Drug-induced hepatocellular injury due to herbal supplement ashwagandha. J R Coll Physicians Edinb. 2021;51(4):363-365. PubMed
- Kamal HI, Patel K, Brdak A, Heffernan J, Ahmad N. Ashwagandha as a unique cause of thyrotoxicosis presenting with supraventricular tachycardia. Cureus. 2022 Mar 25;14(3):e23494. PubMed
- Suryawanshi G, Abdallah M, Thomson M, Desai N, Chauhan A, Lim N. Ashwagandha-Associated Acute Liver Failure Requiring Liver Transplantation. Am J Ther 2023;30(1):e80-e83. PubMed
- Pusec CM, Wolsky R, Llerena C, Sura P. A Case of Supplement-Induced Hepatitis. Cureus 2022;14(10):e30433. PubMed
- Ajgaonkar A, Jain M, Debnath K. Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract for Improvement of Sexual Health in Healthy Women: A Prospective, Randomized, Placebo-Controlled Study. Cureus 2022;14(10):e30787. PubMed
- 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
- Lubarska M, Halasinski P, Hryhorowicz S, et al. Liver Dangers of Herbal Products: A Case Report of Ashwagandha-Induced Liver Injury. Int J Environ Res Public Health 2023;20(5):3921. PubMed
- Tóth M, Benedek AE, Longerich T, Seitz HK. Ashwagandha-induced acute liver injury: A case report. Clin Case Rep 2023;11(3):e7078.
- Bokan G, Glamocanin T, Mavija Z, et al. Herb-Induced Liver Injury by Ayurvedic Ashwagandha as Assessed for Causality by the Updated RUCAM: An Emerging Cause. Pharmaceuticals (Basel) 2023;16(8):1129. PubMed
- Patel PA, Sanborn E, Then R, Williams DM. Recurrent Reversible Cerebral Vasoconstriction Syndrome: A Report of Two Cases. Cureus 2023;15(8):e42992. PubMed
- Majeed M, Nagabhushanam K, Murali A, Vishwanathan DT, Mamidala RV, Mundkur L. A Standardized Withania somniferra (Linn.) Root Extract with Piperine Alleviates the Symptoms of Anxiety and Depression by Increasing Serotonin Levels: A Double-Blind, Randomize
- Philips CA, Valsan A, Theruvath AH, et al. Ashwagandha-induced liver injury-A case series from India and literature review. Hepatol Commun 2023;7(10):e0270. PubMed
- Hayashi M, Hamada H, Azuma SI, Hayashi K. Painless Thyroiditis by Withania somnifera (Ashwagandha). Cureus 2024;16(3):e55352. PubMed
- Vazirani S, Kothari A, Fujimoto J, Gomez M. Supplements Are Not a Synonym for Safe: Suspected Liver Injury From Ashwagandha. Fed Pract 2023;40(9):315-319. PubMed
- Patel M, Newell R, Hillier M, Ramalingam R. Herbal remedies as a potential cause of hypoadrenalism. Br J Hosp Med (Lond) 2024;85(6):1-4. PubMed
Palmitoylethanolamide (pea) 4 references
- Indraccolo U, Barbieri F. Effect of palmitoylethanolamide-polydatin combination on chronic pelvic pain associated with endometriosis: preliminary observations. Eur J Obstet Gynecol Reprod Biol. 2010 May;150(1):76-9. PubMed
- Murina F, Graziottin A, Felice R, Radici G, Tognocchi C. Vestibulodynia: synergy between palmitoylethanolamide + transpolydatin and transcutaneous electrical nerve stimulation. J Low Genit Tract Dis. 2013 Apr;17(2):111-6.
- Papetti L, Sforza G, Tullo G, et al. Tolerability of palmitoylethanolamide in a pediatric population suffering from migraine: A pilot study. Pain Res Manag 2020;2020:3938640. PubMed
- Visse K, Blome C, Phan NQ, Augustin M, Ständer S. Efficacy of body lotion containing N-palmitoylethanolamine in subjects with chronic pruritus due to dry skin: A dermatocosmetic study. Acta Derm Venereol. 2017;97(5):639-641. PubMed
See these in context on the Palmitoylethanolamide (pea) monograph →
Passion Flower 19 references
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Fisher AA, Purcell P, Le Couteur DG. Toxicity of Passiflora incarnata L. J Toxicol Clin Toxicol 2000;38:63-6.
- Akhondzadeh S, Naghavi HR, Shayeganpour A, et al. Passionflower in the treatment of generalized anxiety: a pilot double-blind randomized controlled trial with oxazepam. J Clin Pharm Ther 2001;26:363-7. PubMed
- Farnsworth N, Bingel A, Cordell G, et al. Potential value of plants as sources of new antifertility agents I. J Pharm Sci 1975;64:535-98. DOI
- Mori A, Hasegawa K, Murasaki M, et al. Clinical evaluation of Passiflamin (passiflora extract) on neurosis - multicenter double blind study in comparison with mexazolam. Rinsho Hyoka (Clinical Evaluation) 1993;21:383-440.
- Miyasaka LS, Atallah AN, Soares BG. Passiflora for anxiety disorder. Cochrane Database Syst Rev 2007;(1):CD004518. DOI
- Speroni E., Minghetti A. Neuropharmacological activity of extracts from Passiflora incarnata. Planta Med. 1988;54:488-91.
- Capasso A., Sorrentino L. Pharmacological studies on the sedative and hypnotic effect of Kava kava and Passiflora extracts combination. Phytomedicine. 2005;12:39-45. PubMed
- Carrasco MC, Vallejo JR, Pardo-de-Santayana M, et al. Interactions of Valeriana officinalis L. and Passiflora incarnata L. in a patient treated with lorazepam. Phytother Res. 2009 Dec;23:1795-6.
- Smith, G. W., Chalmers, T. M., and Nuki, G. Vasculitis associated with herbal preparation containing Passiflora extract. Br J Rheumatol. 1993;32(1):87-88.
- Soulimani, R., Younos, C., Jarmouni, S., Bousta, D., Misslin, R., and Mortier, F. Behavioural effects of Passiflora incarnata L. and its indole alkaloid and flavonoid derivatives and maltol in the mouse. J Ethnopharmacol. 1997;57(1):11-20. PubMed
- Nojoumi M, Ghaeli P, Salimi S, Sharifi A, Raisi F. Effects of Passion Flower Extract, as an Add-On Treatment to Sertraline, on Reaction Time in Patients ?with Generalized Anxiety Disorder: A Double-Blind Placebo-Controlled Study. Iran J Psychiatry. 2016;1
- Rokhtabnak F, Ghodraty MR, Kholdebarin A, et al. Comparing the Effect of Preoperative Administration of Melatonin and Passiflora incarnata on Postoperative Cognitive Disorders in Adult Patients Undergoing Elective Surgery. Anesth Pain Med. 2016;7(1):e4123 PubMed
- Dantas LP, de Oliveira-Ribeiro A, de Almeida-Souza LM, Groppo FC. Effects of passiflora incarnata and midazolam for control of anxiety in patients undergoing dental extraction. Med Oral Patol Oral Cir Bucal. 2017;22(1):e95-e101. PubMed
- Ozturk Z, Kalayci CC. Pregnancy outcomes in psychiatric patients treated with passiflora incarnata. Complement Ther Med. 2018 Feb;36:30-32. PubMed
- da Cunha RS, Amorim KS, Gercina AC, et al. Herbal medicines as anxiolytics prior to third molar surgical extraction. A randomized controlled clinical trial. Clin Oral Investig. 2020. PubMed
- Schäfer AM, Gilgen PM, Spirgi C, et al. Constituents of Passiflora incarnata, but Not of Valeriana officinalis, Interact with the Organic Anion Transporting Polypeptides (OATP)2B1 and OATP1A2. Planta Med. 2021. PubMed
- Mazzari ALDA, Lacerda MG, Milton FA, et al. In vitro effects of European and Latin-American medicinal plants in CYP3A4 gene expression, glutathione levels, and P-glycoprotein activity. Front Pharmacol 2022;13:826395. 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