Yt'ers,
I am going to give Lipstik Heartgard Plus chewable, but saw it is for dogs up to 25 lbs.

So my question is do I split one chewable in four parts. Lipstik only weighs a little over 3 lbs. I had given a full one to General Patton not thinking about this, so do you think I should give Lipstik a full chewable, and give General Patton a larger piece(Patton is over 9 lbs

)of the same one?
Thanks for your thoughts as always