I'm Not Sure But I Think My Daughter Might Have

I'm not sure but I think my daughter might have ate a zanxax . She is 1 yrs old. I had charcoal pills so I gave her a little mixed in water. She drank it. She seems to be find other then looks tired and also every once in awhile is walking and will fall down but that is normal since she just started walking. I can't say 100 percent that that was it. What should I do.... my husband used to take it and was cleaning the side room. And is the only thing other then tooth paste that I could think of that is blue. I looked away for a second