Open Question: lansoprazole side effects?

It can lead to people's behavior, side effects? For example, my daughter has been taking these tablets, she has developed a need to go out alone much higher than in the past since she began her course of these tablets. However, before the start of her other pills, she these (also rheumatoid arthritis it to pieces), even then, she has shown such an act. She was very suspicious, do not want people to go out on her when she and her family are all facing the her, and she did not see how to change her behavior. Is this possible side-effects?