How much does a diabetic dog cost a month?

I just got a call from the vet confirming he is diabetic and my dad is worried about the price.

It depends on the type of diabetes your dog has some can be managed by diet some need insulin the best thing to do is get your dad to find out what Type the dog has and go from there .

There are way too many variables to answer. Have the vet explain everything to you - medication needed - food - follow-up visits - glucose curves - everything. He is the only one that can give you answers. A lot of diabetics do well long term but nobody knows the particulars except the vet. Good luck to all!

Your treating vet is the only one who can supply you with correct prices.