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Glossary of Terms

We know that many of the concepts used on this site can be difficult to understand. For that reason, we have provided you with a glossary to help you make sense of the terms used in Comparative Effectiveness Research. Every word that is defined in this glossary should appear highlighted throughout the Web site. When you come upon a highlighted term and would like to read the full definition, you can either click on the word to visit the glossary or roll your mouse over the word for a pop-up definition.

 

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Side Effects

Definition: Any effects of a drug or treatment that are not wanted. Side effects may be temporary and go away when the drug is stopped. Sometimes they continue for a longer time, even when the drug is no longer being taken.

Example: For example, headache, nausea, hair loss, and skin irritation are side effects that commonly occur with drugs.

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