A simple calculator to get the known half-life for medications you're taking.
As of April 2026, Drug Half-Life Calculator is a WordPress drugs plugin with 10 active installations and a 0/5 rating0. It has been downloaded 2.6K+ times in total. Requires WordPress 2.8+ and PHP false+. Available on WordPress.org since 2012. Last updated 13 years ago — may have compatibility concerns.
This plugin allows you to add a widget to your sidebar or shortcode to a page or post that displays a simple drug half life calculator. The calculator outputs the concentration of the drug that will remain in your system over a period of time. The plugin accepts two values: half-life and dosage. You can find the half life of various drugs and medications at Drugsdb.com.
To see a live example, visit: http://www.drugsdb.com/resources/drug-half-life-calculator/
Use the shortcode [halflife] to display it on posts or pages or add it as a sidebar widget.
| WordPress | 2.8+ requiredTested up to 3.5.2 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.