Can anyone explain to me the real risks/benefits of giving a dog "Proban" - the oral organophosphate? I haven't ever used it but after several big vets bills & loosing 2 dearly beloved dogs, I'm considering it. I recently moved to a wicked tick area & the topical treatments are just not doing the job. My working dogs have natural tick resistance & are holding their own (I use topical stuff on them anyway to prevent overburdening) but I have an adored mini foxie who gets sick at the sight of a tick. Things are so bad I'm considering moving away from paralysis tick country altogether - I'm over it.