Program Flavor Tabs is a once a month flavor tablet to prevent and control fleas dogs and puppies. Program also makes an oral suspension to prevent and control fleas in cats. With the use of Program Flea Control, fleas on your dogs and cats will decrease and eventually die out due to ingredients that prevent flea eggs and larvae from developing. As the flea life cycle is broken, the infestation of fleas on your dogs and cats decreases and Program continues to prevent against fleas for a full month. Both Program Tabs and Program Oral Suspension are safe to use on pregnant and breeding animals and should be taken according to the dosage recommended on the back of the package.