Update: she's doing just fine. No changes at all in her behavior or appetite. The poo that I've looked at today has all been normal.
She refused milk and yogurt, but ate a little crushed Tums with peanut butter last night, and I added about a quarter of a Tums to her boo balls today.
I'll monitor for GI issues over the next few days. I'll keep an eye on her urine too as this might be a bit rough on her kidneys.
She had found and destroyed a little travel bottle (
) that was originally for advil, but had been refilled with aleve and tylenol. So I am 100% confident the aleve originated from the big bottle in the kitchen... it occured to me last night to check the expiration date: December
2013.
I don't know how much potency it loses over time, but being 8 years out is probably helping us.
I didn't know pets stores carried the charcoal! I will definitely get some! We've got other animals too, so I really should have it on hand.