I am debating wether or not to give Hakkatan his Equimax beginning of the year dose. He received his 5-way as well as a west nile at the vets office yesterday. I am slightly concerned about doing it if the vaccines compromised his gut balance... But I am unsure if doubling up so soon would end ok. When in doubt I won't give it to him until I talk to my vet (should've ask but I forgot.) But I am interested about what you guys will say in the matter!