His platelet count is back up into the normal range. It is still lower than it has normally been, but it is in the low end of normal now. So getting him off the Pepcid seems to have done the trick. It will probably not get back up to full-normal until he can ramp down on the Keppra medication.
It was a bit worrisome when his count was below normal because he could have had bleeding at the biopsy site if the count wasn't high enough to cause clotting.
He is acting fine and feeling good.