Santa Cruz Animal Health carries dog flea and tick insecticides such as K9 Advantix II, Frontline Plus, Advantage II and Sentry FiproGuard.
This is the only product I would recommend for flea and tick control in South Texas. My dogs are out in the pasture and among wildlife 90% of the time and this product really works to keep them healthy. I've tried other products in the past like Frontline and Vectra and they just do not compare to the NexGard. It does require a prescription, but Santa Cruz Animal Health's online pharmacy is super efficient and friendly and works with my veterinarian to get this to me in a timely manner. ~ Janie, Three Rivers, TX