Ivermectin
What's the deal?
I took the Pig dose
And now I squeal,
Every time
I smell leftover dinner,
And I'm fattening up
I used to be thinner.

Joe Bob Bulaski
He took the Cow dose,
Every time he sees a tree
He stands real close,
And just the other day
He yelled, "Moooooove over",
When I was approaching
His field of clover.

His twin sister Carla
Took the one for the sheep,
Now she wants to change her name
To Little Bo Peep,
And every time I talk to her
She says, "Stop Ba-a-a--a-thering me,
But she'll ask me to scratch her back;
She thinks she has fleas.

Now, let me tell you about
Old Uncle Morris,
He took three doses of the stuff
Along with Aunt Doris,
They picked the package
Labelled for Equine,
Now they're galloping in the pasture
And everything is fine.