The length of time it takes for an Ativan addiction to develop can vary from person to person. Factors such as frequency of use, dose, and individual physiology can all play a role in the development of addiction. However, Ativan is a potent benzodiazepine medication that can lead to dependence and addiction in as little as a few weeks of regular use. It is important to use Ativan only as prescribed by a healthcare professional and to seek help if you are concerned about your use or are experiencing symptoms of addiction or withdrawal.