I am very hungry on Zyprexa, with hunger pangs. I drink a Metamucil drink with my breakfast to help me survive till lunch. I also drink a Metamucil drink before bedtime, as otherwise I wake up hungry in the middle of the night. I am gaining weight rapidly. I have just started taking Wellbutrin in hopes of stalling this weight gain. Some people also take Naltrexone but I could not tolerate it since it was making me depressed. Also, Naltrexone is for cravings and I do not experience cravings - I experience physical hunger in my stomach.