[nagdu] Heartworm pills

[Tracy Carcione]

Ben seemed to have a slightly odd reaction to his heartworm pill this month. 
He got up in the middle of the night, so my husband took him out, then I 
took him out, and he walked around, but didn't seem to do anything.  Then he 
hid in the corner for a few minutes, which is something he does when he 
doesn't feel well (or he's hot, sometimes).  He didn't seem to be in any 
distress, no panting, shivering, hunching..., and after a bit we all went 
back to bed.
I did think, though, that his pill smelled funny, maybe moldy.  But pills 
often smell funny.  We switched in February to a different kind of heartworm 
pill, since they don't make the kind he used to get anymore.
Anyway, has anyone noticed a funny smell to the heartworm pill, or any funny 
reactions?
Tracy