I am so very sorry to hear this. You must of been terrified when he collapsed!!! I'll keep you and Cash in my thoughts and prayers and please give him a hug from his friends here on the boards!
He's on that now. Thanks!Originally Posted By: Jazzstorm <span style="color: #3333FF">Hopefully the vet put him on doxycycline.
If you start a 30 day course of the doxy before the heartworm treatment it will lessen the side effects for him.