An antihistamine is used for treating common allergy symptoms, such as sneezing, watery eyes, hives, and a runny nose. They're also used to treat motion sickness, nausea, dizziness, sleep problems, anxiety, and Parkinson's disease.
Part of the Nanotechnology glossary: Biotechnology is the use of biological processes, organisms, or systems to manufacture products intended to improve the quality of human life.
I decided today that I was going to find out what those companies actually do and the difference, if any, between the two. So I began my search and these are the two definitions I came across: Biotech Companies: a company whose products or services primarily use biotechnology methods for their production, design or delivery