Wow! That is a low dose.

My son went into the hospital a year and a half ago weighing 116 (very underweight). They put him on 35 mg of Zyprexa. He gained up to about 165. The pdoc has been lowering his dose. The weight has gone down with the dosage. He's now at 4.375 mg. His weight is back down to 135 (about 10 pounds underweight), and he's having a hard time keeping the weight on. He has no appetite.