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Herbal Medicine Reference & Interaction Checker

Dr.Herb

Search 314 botanicals by name or by what you're treating. Read what the evidence actually shows, how the herb is dosed, and — the part that matters most — what it does to the medication you're already on.

Now on Google Play US$9.99 once 314 botanicals 18 body systems Works offline No ads or accounts Android & iOS

Herbal medicine reference and interaction checker

Built for the two people on either side of the same conversation: a clinician who needs to know whether an herb interferes with a prescription, and a patient who wants to understand what they're taking.

Search by sickness

Type "insomnia", "hot flashes" or "IBS" — not the clinical term the textbook uses. 88 everyday complaints map onto the language the research is written in, and herbs whose actual purpose matches rank above ones that merely mention the word in passing.

Search by herb

By common name, Latin binomial, or the first few letters of either. Or browse all 314 grouped into 18 body-system categories, from Immune & Antiviral to Antimicrobial & Oral.

The full profile

What it does, dosage protocols, the research and how strong it is, active constituents and mechanism — and cautions and interactions in a card you can't skim past.

Interaction checking

The twelve highest-risk herb–drug interactions up front, then a lookup across 18 medication and risk classes, including blood thinners, immunosuppressants, antidepressants and diabetes medication.

Evidence, graded honestly

Where the source guide's wording maps cleanly, an herb carries a Strong, Moderate, Mixed, Preliminary, Traditional or Not supported badge. Otherwise no badge is shown rather than a guess.

Track what you take

Record the herbs you've decided to take and on which days, keep your own dose note, and tick a dose off. An optional daily reminder is off until you turn it on, is silent, and says only how many herbs are still to take — never which ones, so nothing about your health shows on your lock screen. It records your decisions; it never suggests a herb, a dose or a schedule.

What doesn't work, too

A section for popular claims the evidence does not support, and a list of herbs to avoid internally — comfrey, kava, ephedra, aristolochia and the rest, with the specific risk or injury behind each warning.

Where the 314 entries come from, and the dosing errors our last check caught →

A look inside

Android store-listing previews. The iPhone build carries the same core features and byte-identical 314-entry catalog.

Dr.Herb Android store preview showing an insomnia search with evidence and safety context
Search symptoms and body systems with evidence and safety context.
Dr.Herb Android store preview showing evidence, mechanisms, cautions and personal notes in a herb monograph
Evidence, mechanisms and cautions together in each monograph.
Dr.Herb Android store preview showing the highest-risk herb–drug interactions
Check high-risk herb–drug interactions before combining.
Dr.Herb Android store preview showing a saved California Poppy monograph
Keep useful monographs close with favourites.
Dr.Herb Android store preview showing a private note saved alongside a herb reference
Add private context that stays on your device.
Dr.Herb Android store preview showing the searchable condition browser
Start with a symptom when you do not know the herb name.
Dr.Herb Android store preview showing a personal herb regimen and dose history
Track your own regimen without suggested herbs, doses or schedules.

Get the app

Dr.Herb has launched on Google Play. Scan the QR code or follow the link to get it on Android. The iPhone build is finished and its App Store listing is still being prepared.

iPhone

QR code to the App Store listing
Coming to the App Store
Why it costs US$9.99, once. The price is the business model. There is no advertising slot to sell, no analytics to broker and no Elevated Self data server — the app is funded by one upfront purchase.
Not medical advice. Dr.Herb is a reference, not a prescriber. Dose figures are typical adult ranges from monographs, clinical trials and traditional use — not personalised recommendations. Evidence quality varies enormously between herbs, and "natural" does not mean "safe". Check any herb against your medication with a clinician or pharmacist before taking it.
About the interaction check. It searches the reference's own caution text for the medication class you pick. A blank result means the guide does not flag that combination — not that it is safe. It is a lookup, not a clinical interaction database.
Privacy. Dr.Herb makes no network calls. The only permission it ever asks for is notifications, and only if you switch the daily reminder on — decline it and nothing else changes. There is no location, camera, microphone, contacts, calendar or storage permission. The reference is bundled; theme, disclaimer acceptance, favourites, recent herb IDs, your regimen and any notes you write stay in local app storage. JSON backup/import and CSV note export are user-triggered. Android automatic backup is disabled; Apple's user-controlled device or iCloud backup may include the iPhone app's local data. Full detail in the Dr.Herb privacy policy.
Prescribing from it? Then this is the wrong app. Herbal RX is a clinical edition in development and testing, with separate contraindication, pregnancy, perioperative and interaction fields. It is not released yet.