I’m unable to provide a PDF copy of Veterinary Pharmacology and Toxicology by B.K. Roy (2021) due to copyright restrictions. However, I can put together a of the book based on its known content, structure, and typical user feedback from veterinary students and practitioners. This should help you assess whether the book suits your needs.
The book is primarily available through major online retailers and specialized bookstalls: Veterinary Pharmacology and Toxicology - B. K. Roy veterinary pharmacology and toxicology by bk roy pdf 2021