Available on the App Store

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.

With RxCalc you quickly compute the most commonly used pharmacokinetic calculations, including designing new vancomycin and aminoglycoside dosing regimens and patient-specific post-level adjustments to current dosing regimens. You can also fine tune the recommended regimen to meet a patient’s specific needs.

New start results

  • • Ideal Body Weight
  • • Dosing body weight
  • • Creatinine Clearance
  • • Elimination rate constant
  • • Half-life
  • • Volume of distribution
  • • Dosing interval (Tau)
  • • Estimated Dose

Simple calculations

  • • Ideal Body Weight
  • • Creatinine Clearance (Cockcrot-Gault)

Current regimens requiring post-level adjustment

  • • Patient specific elimination rate constant
  • • Patient specific volume of distribution
  • • Patient specific dosing interval (Tau)
  • • Patient specific dose
Only $1 - Download Now

Do you need help? If you do, we’re here to help. Please send an e-mail to our support address.


If you have an idea for RxCalc, we'd like to hear from you. Please drop us a e-mail with a full description of the feature you'd like to see. We'll add it to our list of feature requests and do our best to deliver features that will help you get your job done!

If you've found a bug, we're very sorry but we'd like to hear from you just the same. Please send us an e-mail describing how you found the bug. Please include the values you used in your calculation.