Hello .iam Pawan, My Dog A Male 16 Years And

hello .iam pawan, my dog a male 16 years and is having cough problem my vet. has prescribed enrocin 150 od. as he was wheezing the vet has presribed deriphyllin 75 mg. sos. since yesterday night. i have given this dose thrice since. the dog too had case of scabies and is on course of ivermectin 6 since one month. is this the right treatment. thankyou.