# Flockhart CYP450 Table

> Reference tool for drug interactions mediated by the cytochrome P450 system. (iPhone/iPad app by Indiana University.)

- Source: https://appshunter.io/ios/app/flockhart-cyp450-table/id1585841306 (this page in markdown: same URL + `.md`)
- Developer: [Indiana University](https://appshunter.io/developer/383456988)
- Category: Reference, Education
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings · 6 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 45 MB
- Released: 2023-02-05
- Data updated: 2026-09-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/flockhart-cyp450-table/id1585841306/reviews.md

## What is Flockhart CYP450 Table?

The Flockhart Table (TM) is a drug interaction reference tool focused on the human cytochrome P450 system.

This drug interaction app is designed as a teaching and reference tool for health care providers (e.g., physicians, pharmacists, nurses) and researchers interested in drug interactions mediated by the cytochrome P450 system.

Drug substrates are classified by cytochrome P450 isoform(s) based on published evidence that the specific isoform(s) contributes to the metabolism of the drug. It does not necessarily follow that the isoform is the principal metabolic pathway in vivo, or that alterations in the rate of the metabolic reaction catalyzed by that isoform will have large effects on the pharmacokinetics of the drug.

The Flockhart Table (TM) only catalogs drug-drug interactions that are mediated by CYPs. Drug-drug interactions caused via other enzymes (e.g., UGTs) are not included in this table. In addition, some of the drugs listed here could be substrates of uptake and efflux drug transporters. However, drug-drug interactions caused by inhibition or induction of drug transporters are not included in this table.

This app is dedicated to the memory of a pioneer in clinical pharmacology and pharmacogenetics and the creator of this site, Dr. David A. Flockhart, MD, Ph.D.

DISCLAIMER: All content and information available on this app are intended solely as a guide for general information and educational purposes and are not intended to be used for actual medical treatment, medical advice, or as a statement of the standards of care required in any particular situation because circumstances and the patient's physical conditions can vary widely from one instance to another. This app provides only general information and guidance regarding potential health care or medical advice. It is your sole responsibility to determine whether any health or medical services, procedures, treatment(s), and recommendation are appropriate for your individual circumstance or if any services, procedures, treatment(s), or recommendations have been reviewed or approved by the U.S. Food and Drug Administration. Only a physician, pharmacist, or other health care professional should advise a patient on health or medical matters and should do so using a medical history and other factors identified, discussed, and documented as part of the health professional/patient relationship. Indiana University and the authors disclaim any liability, loss, injury, or damage incurred as a consequence, directly or indirectly, or the use and application of any of the content or information included or referenced in this app.

## Key features

- Drug interaction reference
- Cytochrome P450 system focus
- Drug substrate classification by isoform
- Teaching and reference tool
- For healthcare providers and researchers

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/flockhart-cyp450-table/id1585841306/reviews.md

### 1/5 — App don’t load

*2026-08-14*

App keeps crashing, not currently useable. Will offer more complete review upon fix.

### 5/5 — New version

*2026-03-20*

Data loads in real time, the layout is much improved without squinting or having to zoom in, and everything just feels cleaner and more intuitive.

### 1/5 — Totally nonfunctional 9/10/25

*2025-09-10*

Completely nonfunctional. Just shows a white page with tabs along the bottom that do nothing. Bummer! Please fix! I love the online resource and the app would be great.

### 2/5 — Not working

*2025-07-18*

I’ve used this off and on for many years as I have several mutations that interfere with metabolizing drugs- 74% of them. This is basically nonfunctional. Does it have to do with the recent death of Mr. Flockhart? Since it’s the Flockhart chart?

### 5/5 — Great app!  Please fix.

*2025-07-13*

Great app but has had no functionality for the past month, June 2025.  Is there no one capable of fixing the app?

### 1/5 — App not working?

*2025-07-07*

Please fix it!

## Frequently asked questions about Flockhart CYP450 Table

### What is the Flockhart CYP450 Table app?

The Flockhart CYP450 Table app is a reference tool focused on drug interactions mediated by the human cytochrome P450 system. It helps healthcare providers and researchers understand how different drugs are metabolized by specific CYP isoforms.

### Who is the Flockhart CYP450 Table app for?

This app is designed for healthcare providers such as physicians, pharmacists, and nurses, as well as researchers who are interested in the cytochrome P450 system and its role in drug interactions.

### What kind of drug interactions does the Flockhart CYP450 Table app include?

The app specifically catalogs drug-drug interactions that are mediated by CYPs. It does not include interactions caused by other enzymes like UGTs or by drug transporters.

### Is the Flockhart CYP450 Table app suitable for actual medical treatment?

No, all content in the Flockhart CYP450 Table app is intended solely as a guide for general information and educational purposes. It is not intended for actual medical treatment, advice, or as a standard of care, as individual patient circumstances vary widely.

### What is the rating of the Flockhart CYP450 Table app?

The Flockhart CYP450 Table app has a rating of 5.0 stars based on 2 ratings.

### What devices is the Flockhart CYP450 Table app available on?

The Flockhart CYP450 Table app is supported on iPhone, iPad, and iPod devices.

### How often is the Flockhart CYP450 Table app updated?

The Flockhart CYP450 Table app was last updated on March 20, 2026, with its latest version being 2.0. It was initially released on February 5, 2023.

### What is the age rating for the Flockhart CYP450 Table app?

The Flockhart CYP450 Table app has an age rating of 17+, indicating it is intended for mature audiences.

## Version history (last 3 releases)

### 2.1 — 2026-04-04

Added a link to the Flockhart CYP450 Table privacy policy.

### 2.0 — 2026-03-20

The Flockhart CYP450 Table has been rebuilt from the ground up for improved stability and performance.

### 1.0 — 2023-02-05

No release notes.

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## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-05.*