One of my dogs required heart worm tx years ago. It was not inexpensive, but I am sure Highland will work with you. It is definitely worth it to save a good dog's life.
They are very reasonable in their prices. I rescued a pup from the shelter back in 2011, and we've gone there ever since. They don't add stuff just to charge you more. If they NEED it, they'll tell you before hand and get your permission.
Depends on the weight of the dog ,but call them on monday and they will be able to tell you
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