Without trying do do Guzman and all the other companies out of business.....Could i suggest typing
boric acid roach killer into Google search.
Powdered Boric acid sachets ( ''Acido borico en sobres'' ) can be purchased at the chemist for cents. Place it where your pets can't reach and wash your hands after using it.
Also, Boric acid will rid you of any ant problem. (100 % guaranteed)
First find your ant, mix a solution of 25% Boric acid and 75% icing sugar. (1 teaspoon Boric, 3 teaspoons icing sugar) add a little water, making a liquid to the same consistency of single cream, pour a little of the liquid near the ant so it can find it easily. Let the ant eat it, then it will go back to the nest to tell his mates, in a few minutes all of the ants will appear around the liquid to feast on this tasty meal.
It is better to watch this process, as you can ensure your pets don't eat it before you clean up and wash your hands.
After 10 minutes or so the ants will all disappear back to the nest to feed the queen, she and all the ants will die.
Assuming that you have only one nest nearby, you will have no ant problem for months.