Traci,

Thank you for your question and welcome to AnxietyConnection.com.

I am not a medical professional and would not be able to give you medical advice.

However, according to the National Institutes of Health, "Some people have had changes in behavior, hostility, agitation, depressed mood, and suicidal thoughts (thinking about harming or killing oneself or planning or trying to do so) while taking varenicline. The role of varenicline in causing these mood changes is unclear since people who quit smoking with or without medication may experience changes in their mental health due to nicotine withdrawal. However, some of these symptoms occurred in people who were taking varenicline and continued to smoke. Some people had these symptoms when they began taking varenicline, and others developed them after several weeks of treatment or after stopping varenicline...Some people had these symptoms when they began taking varenicline, and others developed them after several weeks of treatment or after stopping varenicline."

The NIH recommends that you contact your doctor immediately if you begin to experience mood changes, anxiety or depression from this medication.

Eileen