From the Supplement Skeptic desk · our own diagnostic report
Drug-Supplement Interaction Risk Report Generator
Check your medications + supplements for dangerous interactions. Evidence-based, YMYL-safe, NIH-cited.
More than half of US adults use dietary supplements, and approximately 18 percent take them alongside prescription medications. Most hypothetical interactions in current databases remain unvalidated, but high-stakes pairs like warfarin plus vitamin K have clinical evidence. This report scores your specific medication-supplement combinations by interaction severity, cites the supporting research, and provides timing adjustments grounded in published trials.
- >50%
- US adults using dietary supplements
- 18%
- Taking supplements and prescription meds together
- NIH-cited
- Every interaction scored and sourced
- $0
- Affiliate commission
- Score each medication-supplement pair by severity with published evidence citations
- See actual research behind every flagged interaction with no hypothetical warnings
- Get actionable timing adjustments backed by clinical trials
- Identify genuinely risky vs. overcautionary supplements in generic databases
- Print a summary to review with your doctor or pharmacist
Free 60-second audit
Do your medications and supplements actually interact?
Answer 4 quick questions about what you're taking. We'll flag your highest-risk pairs and show you what the evidence says.
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1 What prescription medications are you currently taking?
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2 Which supplements are you taking?
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3 Do you know the exact doses of your supplements?
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4 What's your main concern?
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Your result
Here's what your risk profile looks like
Get my interaction report — $27Based on what you told us, some medication-supplement combinations do have published evidence of interaction, but many are overcautioned. Your full Interaction Risk Report shows you exactly which pairs have clinical data, which are theoretical, and what adjustments the research supports.
You get the actual NIH citations for every flagged pair, severity scores, and a print-friendly checklist for your pharmacist or doctor.
The hidden risk nobody’s checking
More than half of US adults use dietary supplements. About 18 percent of them also take prescription medications. Yet there is no single consumer-friendly resource that says: Here are your specific medication-supplement pairs, ranked by actual interaction risk, with the evidence.
Instead you get either silence (your doctor never asks about supplements) or apocalypse (generic checkers warning about everything because they flag hypothetical interactions from animal cells). Both leave you guessing.
This report closes that gap by scoring your actual pairs against published human evidence.
What the research actually says
Most interaction warnings in supplement databases are hypothetical — inferred from animal studies or pharmacological theory. But some interactions do have human evidence.
Warfarin plus vitamin K shows abundant RCT data. Vitamin K antagonizes warfarin; timing and consistency matter. This is a high-confidence interaction.
Aspirin plus fish oil: Both thin blood. Observational and trial data suggest combined use increases bleeding risk, but large RCTs like VITAL found no excess bleeding events. This is medium-confidence, context-dependent.
SSRIs plus St. Johns Wort: Case reports and mechanistic data suggest decreased SSRI efficacy. Some trials support this; effect size varies. Medium confidence.
Calcium plus many antibiotics and bisphosphonates: Chelation reduces absorption. Well-studied; timing matters. High confidence.
The key: high-confidence interactions have human data. Most do not. Your report distinguishes between them.
Who this is for
People taking both prescription medications and supplements who want to know: Is this actually a problem or am I being paranoid?
People who have experienced unexplained side effects and suspect an interaction might be the culprit.
People starting a new supplement who want to check for safety before adding it to their regimen.
What you’ll get
A personalized risk matrix listing each of your medication-supplement pairs, scored by interaction severity.
The actual research cited for every interaction, not just consult-your-doctor platitudes.
Actionable adjustments based on published guidance: timing separations, monitoring recommendations, alternative supplements if available.
A print-friendly checklist to bring to your pharmacist or clinician for discussion.
30-day money-back guarantee. One-time purchase, no subscription. We sell no supplements and receive no affiliate commission.
This is consumer education about the evidence, not medical advice. Always discuss any changes to your medication or supplement regimen with a licensed clinician before acting on this report.
What's inside
- 16-page PDF report with your personalized medication-supplement risk scorecard
- Interaction Severity Matrix color-coded by evidence strength with NIH citations
- Evidence-Strength Lookup Table showing which interactions have RCT data vs. theory
- Talk to Your Doctor checklist with specific timing adjustments for high-risk pairs
- Print-friendly summary sheet to bring to your pharmacy or clinician
Frequently asked
Isnt this just generic interaction database stuff?
No. Generic databases flag thousands of hypothetical interactions inferred from animal studies, creating noise. Our report distinguishes between high-confidence interactions backed by human trials like warfarin plus vitamin K, and theoretical ones. Each pair gets a severity score and actual research.
Do I need to worry about every supplement-drug combination?
Not all. Most common supplement-drug pairs have been studied in humans, and many don't show clinically significant interactions. This report prioritizes by evidence strength so you focus on pairs that actually matter for your regimen.
Will this tell me what dose adjustments to make?
The report shows what the literature recommends, like separate warfarin and calcium by 2-4 hours or monitor INR more frequently. We never prescribe, but we translate research into practical timing guidance. Always confirm with your clinician before changing anything.
What do I get for $27?
A 16-page instant-download PDF with your personalized medication-supplement risk matrix scored by severity, evidence-strength lookup table, specific timing adjustments from research, and print-ready checklist for your healthcare provider. One-time payment, 30-day money-back guarantee, no subscription.
Get Drug-Supplement Interaction Risk Report Generator — $27
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Sources
- Herb-Drug Interactions: What the Science Says | NCCIH - NIH — Evidence-quality overview showing most interactions are hypothetical or inferred from animal studies
- Interactions - Dietary Supplements - NCBI Bookshelf — Comprehensive NIH reference on drug-nutrient and supplement interactions
- Validation and Utility of Drug-Nutrient Interaction in the Natural Medicines Database — 2025 validation study confirming reliability of Natural Medicines database for interaction assessment