# Drug Half-Life Calculator

> Drug Half-Life Calculator has 10+ active installs and 42 downloads in the last 30 days. Health score 23/100, keyword rankings, version adoption and the best alternatives.

**Verdict: Consider an alternative.** Drug Half-Life Calculator shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 14 years ago, and scores 23/100 on our health check.

**A simple calculator to get the known half-life for medications you're taking.**

## Key facts

- **Overall rank:** —
- **Active installs:** 10+
- **Total downloads:** 2,799
- **Downloads (30 days):** 42 (+61.5% vs previous 30 days)
- **Rating:** No ratings yet
- **Health score:** 23/100 (At risk)
- **Version:** 1.1
- **Last updated:** Jan 1, 2013
- **Tested up to:** WordPress 3.5.2
- **Requires:** WordPress 2.8+
- **Support resolved:** 0 of 0 threads (last 2 months)
- **Developer:** Luke Mlsna (https://pageforge.pro/directory/authors/bitacre/)
- **WordPress.org:** https://wordpress.org/plugins/drugsdb-half-life-calculator/

## Category rankings

| Category | Rank | Plugins |
|---|---|---|
| [calculator](https://pageforge.pro/directory/plugins/tag/calculator/) | >100 | 263 |
| [drugs](https://pageforge.pro/directory/plugins/tag/drugs/) | #1 | 1 |
| [half-life](https://pageforge.pro/directory/plugins/tag/half-life/) | #2 | 2 |
| [prescription](https://pageforge.pro/directory/plugins/tag/prescription/) | #3 | 7 |
| [widget](https://pageforge.pro/directory/plugins/tag/widget/) | >100 | 2,320 |

## WordPress.org search positions

| Keyword | Position | Results |
|---|---|---|
| calculator | >100 | 1,022 |
| drugs | #23 | 28 |
| half-life | #43 | 45 |
| prescription | #36 | 36 |
| widget | >100 | 10,000 |

## Version adoption

- 1.1: 100%

## Alternatives

| # | Name | Active installs | Rating | Updated | Health |
|---|---|---|---|---|---|
| 1 | [Cost Calculator Builder](https://pageforge.pro/directory/plugins/cost-calculator-builder/) | 20K+ | 4.5/5 (393) | Oct 6, 2026 | 72/100 |
| 2 | [Cost Calculator for Contact Form 7 – Price Calculator Free](https://pageforge.pro/directory/plugins/cf7-cost-calculator-price-calculation/) | 5K+ | 3.8/5 (15) | Oct 17, 2026 | 83/100 |
| 3 | [Mortgage Calculator](https://pageforge.pro/directory/plugins/mortgage-calculator/) | 4K+ | 5/5 (8) | Oct 21, 2026 | 84/100 |
| 4 | [Calculator Builder – Create an Online Calculator](https://pageforge.pro/directory/plugins/calculator-builder/) | 1K+ | 4.7/5 (18) | Aug 25, 2026 | 66/100 |
| 5 | [Calculation for contact form 7](https://pageforge.pro/directory/plugins/calculation-for-contact-form-7/) | 1K+ | 4.5/5 (22) | Aug 26, 2026 | 65/100 |
| 6 | [Mortgage Calculator](https://pageforge.pro/directory/plugins/mortgage-loan-calculator/) | 1K+ | 3.9/5 (13) | Oct 15, 2026 | 78/100 |
| 7 | [CC BMI Calculator](https://pageforge.pro/directory/plugins/cc-bmi-calculator/) | 700+ | 3.3/5 (4) | Jun 26, 2026 | 57/100 |
| 8 | [PVB Contact Form 7 Calculator](https://pageforge.pro/directory/plugins/pvb-contact-form-7-calculator/) | 600+ | 5/5 (10) | May 20, 2026 | 67/100 |
| 9 | [uCalc](https://pageforge.pro/directory/plugins/ucalc/) | 600+ | 3.3/5 (9) | Aug 25, 2023 | 32/100 |
| 10 | [SpreadsheetConverter Calculator](https://pageforge.pro/directory/plugins/import-spreadsheets-from-microsoft-excel/) | 500+ | 2.5/5 (4) | Aug 21, 2026 | 66/100 |

## Frequently asked questions

### Is Drug Half-Life Calculator free?
Yes. Drug Half-Life Calculator is free to download and use from the official WordPress.org plugin directory.

### Is Drug Half-Life Calculator safe to use in 2026?
Drug Half-Life Calculator shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 14 years ago, and scores 23/100 on our health check.

### How many websites use Drug Half-Life Calculator?
Drug Half-Life Calculator is active on 10+ WordPress websites and has been downloaded 2,799 times since it launched in August 2012. It was downloaded 42 times in the last 30 days.

### Does Drug Half-Life Calculator work with WordPress 7.1?
Drug Half-Life Calculator is officially tested up to WordPress 3.5.2, while the latest release is 7.1.3. It may still work, but try it on a staging site first.

### When was Drug Half-Life Calculator last updated?
The latest version, 1.1, was released on January 1, 2013 (14 years ago).

### Who makes Drug Half-Life Calculator?
Drug Half-Life Calculator is developed and maintained by Luke Mlsna.

### What are the best alternatives to Drug Half-Life Calculator?
The most popular alternatives to Drug Half-Life Calculator are Cost Calculator Builder (20K+ installs), Cost Calculator for Contact… (5K+ installs) and Mortgage Calculator (4K+ installs).


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Source: live WordPress.org data · HTML version: https://pageforge.pro/directory/plugins/drugsdb-half-life-calculator/ · Generated 2026-10-21 17:03 UTC by PageForge