Antihistamines
- A brief overview of this group of medicines which help with the symptoms of allergies.
- http://familydoctor.org/262.xml

Antihistamines: Are Newer Drugs Always a Better Choice?
- Medscape review of the properties and uses of these medications, including discussion of research on sedative side effects, and advice for medical professionals on how to use these drugs in treating allergic patients. [Requires free registration]
- http://www.medscape.com/viewprogram/2673

Prescription Antihistamine Database
- Information about medications available by prescription in the U.S., arranged by drug name.
- http://www.coreynahman.com/ura.html