Epocrates made its name as an easy to use free pharmacopoeia for Palm and Pocket PC. Now Epocrates offers the same features online:
After a free registration, you can access drug information from any computer connected to the internet. The most commonly used features are adult doses, price information and adverse effects.
Extra information, like pill photos and tables, is available to the paid subscribers.
Epocrates & iPhone. Link via Doctor Anonymous.
An easy way to add new features to Google. Matt Cutts: Gadgets, Google, and SEO, 02/2008.
(link via PalmDoc)
Review of Epocrates on the iPhone. Tech Medicine, 07/2008.