Make informed decisions before you take it.
Check drug–supplement interactions, optimize timing, and understand your full stack — with citations where available and clear prompts to discuss with your clinician.
Educational information only. Not medical advice.
Citations link to the source used to inform the check; they don't replace medical advice.
How PharmaGuide Works
Scan
Scan a barcode, search by name, or use voice input to add products to your stack.
Analyze
We analyze your full stack—medications, supplements, timing, and the profile details you provide.
Decide
Get clear actions: timing suggestions, discussion prompts for your clinician, and options to explore.
Unlike single-product checkers, we analyze your entire regimen together—because interactions happen between products, not in isolation.
We don't diagnose, treat, or prescribe. PharmaGuide is designed to support—not replace—conversations with your healthcare providers.
How We're Different
Most apps check one thing at a time. PharmaGuide analyzes your entire stack together.
| Capability | PharmaGuide | Typical Apps |
|---|---|---|
| Drug-to-drug interaction checks | ✓ Yes | ✓ Often available |
| Supplement-to-supplement analysis | ✓ Yes | ~ Uncommon |
| Drug-supplement cross-checks | ✓ Yes | ~ Sometimes limited |
| Full-stack multi-way analysis | ✓ Yes | ✗ Rarely available |
| Personalized to health profile | ✓ Yes | ~ Inconsistent |
| Timing optimization | ✓ Yes | ✗ Uncommon |
| Ingredient quality screening | ✓ Yes | ✗ Rarely available |
| Clinical source citations | ✓ Yes | ~ Sometimes |
| Local-first data storage | ✓ Yes | ✗ Uncommon |
Drug-to-drug interaction checks
Supplement-to-supplement analysis
Drug-supplement cross-checks
Full-stack multi-way analysis
Personalized to health profile
Timing optimization
Ingredient quality screening
Clinical source citations
Local-first data storage
Comparison reflects common consumer supplement apps; capabilities vary by vendor, version, and region. This is directional, not exhaustive.
What PharmaGuide doesn't do
Tools for Safer Supplement Decisions
Five integrated systems working together to help you make informed decisions.
Comprehensive Stack Analysis
A platform designed to analyze your medications AND supplements together—not just individual products in isolation.
- Drug-to-supplement interaction detection
- Supplement-to-supplement conflict analysis
- Nutrient excess and deficiency flagging
Safety Alerts & Smart Timing
Get notified before you take something that may need review, and optimize when you take what.
- Severity levels: major, moderate, minor
- Timing conflict detection
- Personalized daily schedules
Ingredient & Quality Screening
Not all supplements are created equal. We scan inactive ingredients for additives that may concern you.
- Potentially concerning additive flags
- Quality scoring based on formulation
- Third-party testing indicators
Personalized Health Profiles
What's safe for one person may need review for another. Your profile ensures every check is personalized.
- Conditions, allergies, and current medications
- Age and sex-based considerations
- Pregnancy and nursing cautions
AI Guidance Chat
Plain-English answers grounded in clinical sources—not generic search results. Educational only — not diagnosis or prescribing.
- Responses with references to PubMed, NIH, FDA resources
- "What to ask your doctor" suggestions
- Clear limits: we don't diagnose or prescribe
Interactions include an evidence level when available. Learn about our methodology →
Additional Capabilities
Beyond the core features, PharmaGuide offers a suite of tools designed to make supplement management effortless.
AI-Enhanced Insights
Combines rule-based clinical logic with AI to provide personalized explanations and pattern detection based on your inputs.
Instant Interaction Alerts
Receive immediate notifications when scanned products may pose concerns based on the profile details you provide.
Smart Reminders
Set intelligent reminders for supplement timing, symptom check-ins, or refill alerts—never miss a dose.
Symptom Tracking & Patterns
Log daily symptoms (energy, sleep, mood) to see patterns over time and generate discussion prompts for your clinician.
Doctor-Ready Reports
Export detailed PDF summaries with one tap to share with your healthcare provider during appointments.
Community-Powered Database
Help expand our knowledge base by submitting products. Community submissions help us prioritize additions and are reviewed before appearing publicly.
Healthy Habit Tracking
Track consistent healthy behaviors with badges and streaks—encouraging accountability without pressure.
Wishlist & Future Planning
Save products you're considering for later, separating your active regimen from potential additions.
Safety News & Recalls
Stay informed with FDA alerts, product recalls, and emerging research relevant to your stack.
Example Stack Analyses
Select an example to see how PharmaGuide evaluates real-world scenarios.
What You're Taking
- Rx Warfarin (blood thinner)
- Supp Fish Oil 3,000mg
- Supp Vitamin E 400 IU
- Supp Ginkgo Biloba
What PharmaGuide Flags
Combined effect on clotting. All three supplements may enhance anticoagulant activity. Recommend review with prescriber.
📚 Sources: NIH ODS — Omega-3 Fatty Acids • NIH ODS — Vitamin E
What You're Taking
- Rx Levothyroxine (morning)
- Supp Calcium 1,200mg (morning)
What PharmaGuide Flags
Calcium can significantly reduce thyroid medication absorption when taken together. Spacing is commonly recommended.
Suggested: Take Levothyroxine on empty stomach, Calcium 4+ hours later.
📚 Sources: American Thyroid Association • NIH ODS — Calcium
What You're Taking
- Rx Sertraline 50mg (SSRI)
- Supp St. John's Wort 900mg
What PharmaGuide Flags
Both affect serotonin pathways. Combined use may warrant discussion with your prescribing clinician before starting.
📚 Sources: NCCIH — St. John's Wort • FDA — SSRIs Information
What You're Taking
- Supp Zinc 50mg (morning)
- Supp Magnesium 500mg (morning)
- Supp Calcium 1,000mg (morning)
What PharmaGuide Flags
Minerals compete for absorption when taken together. Splitting doses can improve uptake.
Optimized: Zinc AM • Magnesium & Calcium PM
📚 Sources: NIH ODS — Zinc • NIH ODS — Magnesium
What You're Taking
- Supp Prenatal Multivitamin (morning)
- Supp Iron 27mg (morning, with prenatal)
- Supp Calcium 600mg (morning)
- Supp DHA/Omega-3 (morning)
Profile: 32 years old, pregnant, second trimester
What PharmaGuide Flags
Iron and Calcium compete for absorption. Taking together may reduce iron uptake—important during pregnancy when iron needs increase.
Suggested: Prenatal + Iron with breakfast • Calcium at lunch or dinner • DHA with fat-containing meal
Your prenatal likely contains iron already. Check the label to avoid doubling up—discuss with your OB/GYN.
📚 Sources: NIH ODS — Iron • ACOG — Nutrition During Pregnancy
Want to check YOUR stack?
Get Early AccessBuilt on Science. Reviewed by Experts.
How We Validate Interactions
Source
PubMed, NIH, FDA, clinical references
Normalize
Evidence grading & tagging
Review
Clinician review of interaction logic
Update
Regular database refresh
Clinical Review Team
Our interaction logic is reviewed by licensed clinicians as part of our methodology
Dr. Pham L.
PharmD • 15+ years clinical experience
Miriam D.
NP • 12+ years clinical experience
PharmaGuide provides educational information to support—not replace—conversations with your healthcare providers. We do not diagnose, treat, or prescribe.
Last methodology review: February 2026
Your Data Stays Yours
We built PharmaGuide with privacy at the core—not as an afterthought.
Local-First Storage
Your health data lives on your device, not our servers.
Purpose-Limited Data Use
Health data is used only to provide PharmaGuide's core functionality—not sold and not used for advertising. See our Privacy Policy for details.
Delete Anytime
Your data, your choice. One tap and it's gone—permanently.
Guest Mode
Check interactions without creating an account. No signup required.
HIPAA-Aligned Design
Built following healthcare privacy design principles from day one.
Export Controls
Share reports with your doctor on your terms—or keep them completely private.
Designed with HIPAA principles in mind; PharmaGuide is not a covered entity and does not provide medical services.
Latest Articles & Research
Stay informed with evidence-based supplement safety insights from our clinical team.
Frequently Asked Questions
What types of interactions does PharmaGuide check?
PharmaGuide checks drug-to-supplement interactions, supplement-to-supplement conflicts, multi-product stack analysis, timing conflicts, nutrient excess and deficiency flags, and ingredient quality concerns. Unlike single-pair checkers, PharmaGuide analyzes your entire regimen together because interactions happen between products, not in isolation.
Is PharmaGuide a replacement for medical advice?
No. PharmaGuide provides educational information to support—not replace—conversations with your healthcare providers. We do not diagnose, treat, or prescribe. The app is designed to help you prepare informed questions for your clinician and understand your supplement regimen better.
How does PharmaGuide's barcode scanning work?
Point your phone camera at any supplement bottle barcode. PharmaGuide identifies the product and its ingredients, then cross-references them against your full stack—including any medications and other supplements you've added—to flag potential interactions, timing conflicts, and ingredient quality concerns.
Where does the interaction data come from?
We source from PubMed-indexed literature, NIH resources including the Office of Dietary Supplements, FDA regulatory databases, and established clinical references. Our interaction logic is reviewed by licensed clinicians as part of our methodology, and citations are included where available so you can trace claims to their source.
Can I use PharmaGuide without creating an account?
Yes. Guest mode lets you check interactions without signing up. Create an account only if you want to save your health profile, stack history, and personalized schedules. Your data stays on your device with local-first storage.
Does PharmaGuide work offline?
Yes. Core interaction checking works without an internet connection. AI-powered guidance chat and some database updates require connectivity, but the essential safety checking functionality is available offline.
When does PharmaGuide launch and what does it cost?
PharmaGuide launches in April 2026 on iOS and Android. Join the waitlist to be first to know about pricing and early access opportunities.
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Launching April 2026 • iOS & Android