Lexi-Comp for PDA is called Lexi-Comp On-Hand is the most comprehensive handheld database that I've seen yet. I don't feel I'd be able to adequately describe all that is available through these programs but more information and very useful online tours can be found at
www.lexi.com
The program can be used on the internet, on a desktop or on a handheld device. The web version obviously is better if you'd like to follow links and does have very complete information. Lexi-comp products encompass many databases and tools, some which can be purchased separately and downloaded onto a palm, pocketPC or blackberry device. Some of the smaller databases included Lexi-drugs, Lexi-interact, Lexi-DrugID, Lexi-Calc and many, many others. I don't believe there is much drug information out there that can't be found under one of the databases offered. For simplicity I will discuss the most used version, which is Lexi-Complete and it offers IV compatibility, drug information, interaction checker, and the calculators. As an aside the calculators are offered on ALL databases that are purchased.
Currently Lexi-Comp is having a sale, and you can purchase a one-year subscription for $75 to one database and add any other for $40.
Within Lexi-Complete you can reference 15 clinical database!! These include very useful installed books containing disease information, herbal drug information, medical abbreviations and many other useful bits of information. Within all the books, drugs and disease are linked to their information found in the other books so that complete information can be searched out easily. The drug database is very comprehensive and has links within that will lead you to important calculators for that drug, definitions of terms, important tables, and much more.
Lexi-interact is has, in my opinion, the most complete information and the most reference. The program actually cites it's sources!! However, because the program is so in depth I feel that it can sometimes be a little confusing to find what you need - even with their new search and "jump" features. If considering this database, I would spend some time on the internet going over the tours and product details, and then spend some time playing around with the database. Although it may be difficult to use at first, once mastered, the Lexi programs will be a great resource!!