iPhone Screenshots


RxCalc puts commonly used pharmacokinetic calculations in the palm of your hand with your iPhone or iPod Touch. The fast interface and comprehensive results help you spend less time crunching numbers and more time working on other, more important issues.

This tool is designed to help pharmacists, and physicians, quickly perform the most commonly used pharmacokinetic calculations. Calculations for designing new vancomycin and aminoglycoside dosing regimens as well as patient specific post-level adjustments to current dosing regimens are included.

What’s New

Version 1.5

Requires iOS 13
Supports Dark Mode

Ratings and Reviews

4.6 out of 5
5 Ratings

5 Ratings

Nomad16 ,

Very helpful

This has been the most useful app for doing pharmacokinetics that I found. It does the calculations for aminoglycosides, vancomycin and high dose extended interval dosing. I have been using it for over five years. It's efficient, no frills interface is quick and can save a lot of time. Highly recommended!

Pharmentator ,

Use this Almost Every Day

This app is very useful for the clinical pharmacist responsible for kinetic dosing. It is quick, simple to use and works well. Have found this provides more accurate predictions for geriatric patients, in comparison to other kinetics calculators tried in the past.

Meforever2015 ,

Love it

I like this app it's simple and to the points. Pretty handy when your on the floor. You don't have too many options to confuse you but you can still adjust VD to your liking. I'm surprised this app is not reviewed or used that much.

App Privacy

The developer, Rob Fahrni, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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