Olanzapine
"I just started taking the drug olanzapine.  However I having problems with rapid weight gain.. In only 6 days of taking the drug, I have gained 6 pounds.   Tomorrow,  I'm starting to exercise at least 20 minutes a day.  Mentally,  I am feeling much better.  I am currently taking 5 mgs of Olanzapine along with 40 mgs of Fluoxetine once daily for major depressive disorder.  I know this medication is working because I am willing to exercise. So far,  so good."