B.K. Roy’s work is valued for its simple language and scientific rigor.
Fundamental concepts of pharmacodynamics (what drugs do to the body) and pharmacokinetics (how the body processes drugs, including absorption and elimination). veterinary pharmacology and toxicology by bk roy pdf
| Chapter | Core Material | |--------|---------------| | | Toxic dose vs. therapeutic dose, LD₅₀ , NOAEL , LOAEL , safety factors, routes of exposure. | | Mechanisms of Toxicity | • Direct cytotoxicity , • Enzyme inhibition (e.g., acetylcholinesterase inhibition by organophosphates), • Oxidative stress , • Metabolic activation (pro‑toxins). | | Common Veterinary Poisons | • Rodenticides (warfarin, bromadiolone), • Insecticides (organophosphates, carbamates), • Plant toxins (larkspur, yew, sago palm), • Heavy metals (lead, arsenic), • Mycotoxins (aflatoxin). | | Clinical Syndromes | • Neurotoxicity (tremors, seizures), • Hepatotoxicity (icterus, coagulopathy), • Nephrotoxicity (oliguria, azotemia), • Cardiotoxicity (arrhythmias, myocardial necrosis). | | Diagnostic Approach | History → physical exam → specific laboratory tests (blood chemistry, urinalysis, toxicology screens) → imaging if indicated. | | Decontamination & Antidotes | • Gastric lavage , induced emesis , activated charcoal (single dose vs. multi‑dose). • Specific antidotes: e.g., N‑acetylcysteine for acetaminophen, atropine for organophosphates, vitamin K₁ for anticoagulant rodenticides. | | Supportive Care | Fluid therapy, seizure control, correction of metabolic derangements, monitoring of organ functions. | | Prevention & Owner Education | Secure storage of chemicals, awareness of toxic plants, proper disposal of expired drugs, pasture management. | | Chapter | Core Material | |--------|---------------| |
The text is structured to provide a clear transition from basic pharmacological theory to practical clinical application across various animal species. Key areas covered include: | | Common Veterinary Poisons | • Rodenticides