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Merck Vet Manual LogoMERCK MANUALVeterinary Manual
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  1. <Veterinary Topics
    Pharmacology
    Pharmacology Introduction
    • Overview of Pharmacology
    • New Animal Drugs, Extralabel Drug Use, Compounded Drugs, and Generic Drugs
    • Disposition and Fate of Drugs
      • Passage of Drugs Across Cell Membranes
      • Drug Absorption
        • Absorption From the GI Tract
        • Absorption From Topical Administration
        • Absorption From Tracheobronchial Surfaces and Alveoli
        • Absorption From Injection Delivery Sites
        • Drug Bioavailability
      • Drug Distribution
      • Drug Metabolism
      • Drug Excretion
        • For More Information
    • Pharmacokinetics
      • Apparent Volume of Distribution
      • Drug Clearance
        • Elimination Rate Constant
        • Single-Dose Concentration Curves After Extravascular Administration
        • Steady-State Plasma Concentration (Repeated Administration or Constant IV Infusion)
    • Drug Action in Animals : Pharmacodynamics
      • Protein-Mediated Mechanisms of Drugs
      • Non–Protein-Mediated Mechanisms of Drugs
      • Receptor-Mediated Signal Transduction
      • Drug-Receptor Binding
      • Log-Dose Effect Relationship
      • Receptor Agonists
      • Understanding Drug-Receptor Transduction
      • Antagonists
      • Noncompetitive Antagonists
      • Agonist/Antagonists
      • Inverse Agonists
      • Receptor Phenomena of Clinical Relevance
        • Hyporeactivity or Tolerance
        • Rapid Loss of Drug Effect: Tachyphylaxis
        • Loss of Drug Effect: Receptor Desensitization and Downregulation, and Exhaustion of Mediators
        • Hyperreactivity
        • Spare Receptors
      • Key Points
      • For More Information
    • Routes of Administration and Dosage Forms of Drugs
      • Oral Route of Administration and Dosage Forms
      • Oral Modified-release Delivery Systems for Ruminants
      • Parenteral Route of Administration and Dosage Forms
        • Special Dosage Form Considerations With Intra-articular Injections
      • Special Dosage Form Considerations With Recombinant Proteins and Peptides
      • Special Dosage Form Considerations With Live Vaccines, Inactivated and Subunit Vaccines, and DNA Vaccines
      • Topical Route of Administration and Dosage Forms
        • Specialized Topical Dosage Forms and Transdermal Delivery Systems
      • Specialized Topical Dosage Forms, Delivery Systems, and Application Methods for Parasite Control
      • Inhaled Delivery Systems and Dosage Forms
    • Chemical Residues in Animal Source Foods and Animal Fiber
      • Chemical Residues in Foodstuffs of Animal Origin
        • Residues Resulting from Veterinary Drugs, Medicated Feeds, or Application of Pesticides
        • Residues Resulting from Consumption of Feedstuffs Treated with Agricultural Chemicals
      • Chemical Residues in Animal Fibers
    Systemic Pharmacotherapeutics of the Cardiovascular System
    • Diuretics for Use in Animals
      • Furosemide
        • Preparations and Disposition
        • Drug Interactions and Toxicity
        • Clinical Use
      • Torsemide
      • Preparations and Disposition
      • Drug Interactions and Toxicity
      • Clinical Use
      • Thiazide Diuretics
        • Preparations and Disposition
        • Drug Interactions and Toxicity
        • Clinical Use
      • Potassium-sparing Diuretics
        • Preparations and Disposition
        • Drug Interactions and Toxicity
        • Clinical Use
    • Overview of Systemic Pharmacotherapeutics of the Cardiovascular System in Animals
    • Positive Inotropes for Use in Animals
      • Cardiac Glycosides
        • Preparations and Disposition
        • Drug Interactions and Toxicity
        • Clinical Use
        • Toxicity and Therapeutic Drug Monitoring
      • Phosphodiesterase Inhibitors
      • beta-Adrenergic Agonists
    • Angiotensin-converting Enzyme Inhibitors for Use in Animals
      • Preparations and Disposition
      • Drug Interactions and Toxicity
      • Clinical Use
    • Vasoactive Drugs for Use in Animals
      • Arterial Dilators
      • Arterial and Venous Dilators
      • Phosphodiesterase 5 Inhibitor
    • Antiarrhythmics for Use in Animals
      • Class I Drugs
        • Class IA Drugs
        • Class IB Drugs
        • Class IC Drugs
      • Class II Drugs
      • Class III Drugs
      • Class IV Drugs
    • Drugs Acting on the Blood or Blood-Forming Organs in Animals
      • Hematinics
      • Hemostatics
      • Thromboprophylactics
    • Angiotensin II Receptor Antagonists for Use in Animals
      • Preparations and Disposition
      • Drug Interactions and Toxicity
      • Clinical Use
      • References
    Systemic Pharmacotherapeutics of the Digestive System
    • Overview of Systemic Pharmacotherapeutics of the Digestive System
    • Drugs That Affect Appetite in Monogastric Animals
      • Appetite Suppression
      • Appetite Stimulation
    • Drugs Used to Control or Stimulate Vomiting in Monogastric Animals
      • Neurotransmitters Involved in Emesis
        • Afferent Pathways for Emesis
      • Emetic Drugs
      • Antiemetic Drugs
    • Drugs Used to Treat Gastrointestinal Ulcers in Monogastric Animals
      • Antacids
      • Sucralfate
      • Histaminergic Receptor Antagonists
      • Proton Pump Inhibitors
      • Rebound Gastric Acid Hypersecretion
      • Misoprostol
    • Drugs Used to Treat Diarrhea in Monogastric Animals
      • Mucosal Protectants and Adsorbents
      • Motility-Modifying Drugs
      • Antimicrobials
      • Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
    • Drugs Used to Treat Inflammatory Bowel Disease in Monogastric Animals
      • References
    • Gastrointestinal Prokinetic Drugs Used in Monogastric Animals
      • References
    • Cathartic and Laxative Drugs Used in Monogastric Animals
      • Stimulant Cathartics
      • Hyperosmotic Cathartics
      • Hydrophilic Colloids (Bulk Laxatives)
      • Lubricant Laxatives
      • Fecal Softeners (Surfactants)
    • Drugs That Affect Digestive Functions in Monogastric Animals
    • The Ruminant Digestive System
    • Drugs for Specific Purposes in the Ruminant Digestive System
      • Drugs for Esophageal Obstruction
      • Ruminotorics
      • Ruminal Transfaunate
      • Antifoaming Agents
      • Ruminoreticular Antacids
      • Abomasal Antiulcer Agents
      • Ruminoreticular Acidifying Agents
      • Modulators of Ruminoreticular Motility
      • References
    • Drug Disposition in the Ruminoreticulum
    • Modification of the Rumen Microbiome
    Systemic Pharmacotherapeutics of the Eye
    • Ocular Pharmacology in Animals
      • Ocular Anatomy
      • Ocular Therapeutics
        • Eye Effects
        • Drug Effects
      • For More Information
    • Routes of Administration for Ocular Medications in Animals
      • Topical Application
        • Topical Vehicles
        • Volume
      • Local Ocular Routes
      • Systemic Routes
    • Local Anesthetics for the Eye in Animals
      • For More Information
    • Treatment of Intraocular Inflammation in Animals
      • Canine Immune-mediated Disease
      • Canine Optic Neuritis
      • Equine Uveitis
      • Equine Optic Neuritis
      • For More Information
    • Treatment of Glaucoma in Animals
      • Osmotic Diuretics
      • Carbonic Anhydrase Inhibitors
        • Topical
        • Systemic
      • Prostaglandins
      • Autonomic System
        • Beta-Blocking Adrenergics
        • Sympathomimetics
        • Parasympathomimetics
    • Diagnostic Tests Pertaining to Ocular Medications in Animals
      • Tear Tests
      • Ocular Stains
      • Autonomic Nervous System Agents
        • Mydriatics
        • Miotics
      • For More Information
    • Tear Replacements in Animals
      • For More Information
    • Tear Stimulants and Immunosuppressants in Animals
      • For More Information
    • Topical Antihistamines and Mast Cell Stabilizers in Animals
      • For More Information
    • Antimicrobial Use in Animals
      • Antimicrobials
        • Broad Spectrum Antimicrobials
        • Gram-positive Only
        • Gram-negative Only
      • Antivirals
        • Topical Antivirals
        • Systemic/Oral Antivirals
        • Ancillary Treatments
      • Antifungals
        • Topical Antifungals
        • Systemic Antifungals
      • For More Information
    • Antiproteolytic Agents (Enzyme Inhibitors) and Chelating Agents in Animals
      • For More Information
    • Anti-inflammatory Agents in Animals
      • Corticosteroids
        • Topical Corticosteroids
        • Subconjunctival
        • Intraocular
        • Systemic Steroids
      • NSAIDs
        • Topical NSAIDs
        • Systemic NSAIDs
    • Immunosuppressive Drugs in Animals
      • For More Information
    • Miscellaneous Agents for Ocular Treatment in Animals
      • For More Information
    Systemic Pharmacotherapeutics of the Integumentary System
    • Overview of Systemic Pharmacotherapeutics of the Integumentary System in Animals
      • For More Information
    • Antibacterials for Integumentary Disease in Animals
      • For More Information
    • Antifungals for Integumentary Disease in Animals
      • Itraconazole
      • Ketoconazole
      • Fluconazole
      • Terbinafine
      • Griseofulvin
      • Amphotericin B
      • Flucytosine
      • Systemic Iodides
      • For More Information
    • Antiparasitic Drugs for Integumentary Disease in Animals
      • Isoxazolines
      • Ivermectin
      • Milbemycin Oxime
      • Moxidectin
      • Selamectin
      • Lufenuron
      • Nitenpyram
      • Spinosad
      • Sodium Stibogluconate
      • For More Information
    • Antihistamines for Integumentary Disease in Animals
      • For More Information
    • Essential Fatty Acids for Integumentary Disease in Animals
      • For More Information
    • Hormonal Treatment for Integumentary Disease in Animals
      • Glucocorticoids
      • Thyroid Hormone
      • Trilostane
      • Mitotane (o,p′DDD)
      • Progesterones
      • Growth Hormone
      • Sex Hormones
      • Melatonin
      • For More Information
    • Immunomodulators for Integumentary Disease in Animals
      • Immunostimulants
      • Immunosuppressants
        • Glucocorticoids
        • Azathioprine
        • Cyclophosphamide
        • Chlorambucil
        • Gold Salts
        • Cyclosporine
        • Oclacitinib
        • Lokivetmab
        • Sulfones
        • Tetracycline and Niacinamide
        • Pentoxifylline
      • For More Information
    • Psychotropic Agents for Integumentary Disease in Animals
      • For More Information
    • Vitamins and Minerals for Integumentary Disease in Animals
      • Retinoids
      • Zinc Salts
      • For More Information
    Systemic Pharmacotherapeutics of the Muscular System
    • Overview of Systemic Pharmacotherapeutics of the Muscular System in Animals
    • Neuromuscular Blocking Agents for Animals
      • Competitive Nondepolarizing Agents
      • Depolarizing Agents
    • Skeletal Muscle Relaxants for Animals
    • Anabolic Steroids for Animals
    Systemic Pharmacotherapeutics of the Nervous System
    • Overview of Systemic Pharmacotherapeutics of the Nervous System in Animals
    • Anticonvulsants for Treatment of Animals
      • Maintenance Anticonvulsants
        • Indications
        • Clinical Use
        • Bromide Salts
        • Mechanism of Action of Bromide Salts
        • Pharmacokinetics of Bromide Salts
        • Dosing Considerations for Bromide Salts
        • Monitoring of Bromide Salts
        • Adverse Effects of Bromide Salts
        • Phenobarbital
      • Newer or Adjunctive Anticonvulsants
        • Clonazepam
        • Clorazepate Dipotassium
        • Felbamate
        • Gabapentin
        • Imepitoin
        • Levetiracetam
        • Pregabalin
        • Topiramate
        • Zonisamide
        • Mechanism of Action of Zonisamide
        • Pharmacokinetics of Zonisamide
        • Dosing Considerations for Zonisamide
        • Monitoring of Zonisamide
        • Adverse Effects of Zonisamide
      • Older Anticonvulsants No Longer Recommended for Maintenance Treatment
        • Diazepam (Former Use)
        • Mephenytoin (Former Use)
        • Phenytoin (Former Use)
        • Primidone (Former Use)
        • Valproic Acid (Valproate) (Former Use)
      • References
    • Anticonvulsants for Emergency Treatment of Seizures in Dogs and Cats
      • Benzodiazepines
        • Clonazepam
        • Clorazepate Dipotassium
        • Diazepam
        • Midazolam
      • Other Drugs
        • Cannabidiol
        • Ketamine
        • Levetiracetam
        • Phenobarbital
        • Propofol
        • Sodium Pentobarbital
      • Inhalation Anesthesia
      • Alternative Methods to Stop Seizures
      • Ocular Compression
      • Dietary Modification
      • References
    • Tranquilizers, Sedatives, and Analgesics for Treatment of Animals
      • Acepromazine
      • Alfaxalone
      • Propofol
      • References
    • Psychotropic Agents for Treatment of Animals
      • Anxiolytics
        • Buspirone
        • Clorazepate
        • Diazepam
        • Gabapentin
        • Imepitoin
        • Oxazepam and Alprazolam
      • Antipsychotics
      • Mood-Stabilizing Drugs
        • Carbamazepine
        • Lithium
        • Valproic Acid
      • Antidepressants
        • Selective Serotonin Reuptake Inhibitors
        • Tricyclic Antidepressants
      • Other Agents and Hormones
        • Medroxyprogesterone Acetate
        • Megestrol Acetate
        • Monoamine Oxidase Inhibitors
        • Progestin Hormones
      • References
    • Anticonvulsants for Emergency Treatment of Seizures in Large Animals and Exotic Species
      • Foals and Horses
      • Diazepam for Emergency Treatment of Seizures in Foals and Horses
      • Midazolam for Emergency Treatment of Seizures in Foals and Horses
      • Phenytoin for Emergency Treatment of Seizures in Foals and Horses
      • Other Drugs for Emergency Treatment of Seizures in Foals and Horses
      • Drugs for Emergency Treatment of Seizures in Equine Neonates
        • Diazepam
        • Midazolam
        • Phenytoin
      • Ruminants
      • Swine
      • Exotic Mammals
      • Birds
      • Reptiles
      • References
    Systemic Pharmacotherapeutics of the Reproductive System
    • Overview of Systemic Pharmacotherapeutics of the Reproductive System in Animals
      • For More Information
    • Effect of Reproductive Treatment on the Fetus or Neonate in Animals
      • For More Information
    Systemic Pharmacotherapeutics of the Respiratory System
    • Systemic Treatment of Inflammatory Airway Disease in Animals
      • Beta-Adrenergic Receptor Agonists
      • Methylxanthines
      • Anticholinergic Drugs
      • Glucocorticoids
      • Cyproheptadine
      • Antimicrobial Treatment
      • For More Information
    • Overview of Systemic Pharmacotherapeutics of the Respiratory System in Animals
      • For More Information
    • Antitussive Drugs in Animals
      • For More Information
    • Species Approach to Inflammatory Airway Disease in Animals
      • For More Information
    • Inhalation Treatment of Airway Disease in Animals
      • Spacers
      • Beta2-Agonists
      • Glucocorticoids
      • Ipratropium Bromide
      • Cromolyn Sodium and Nedocromil
      • Lidocaine
      • Suggested Treatment Regimens
      • For More Information
    • Expectorants and Mucolytic Drugs in Animals
      • For More Information
    • Decongestants in Animals
      • For More Information
    • Respiratory Stimulants in Animals
      • For More Information
    Systemic Pharmacotherapeutics of the Urinary System
    • Pharmacotherapeutics in Bacterial Prostatitis in Dogs and Cats
    • Overview of Systemic Pharmacotherapeutics of the Urinary System in Animals
    • Pharmacotherapeutics in Bacterial Urinary Tract Infections in Animals
      • Antimicrobial Treatment of Bacterial UTIs
        • Penicillins
        • Cephalosporins
        • Chloramphenicol
        • Fluoroquinolones
        • Aminoglycosides
        • Nitrofurantoin
        • Tetracyclines
        • Trimethoprim-Sulfonamides
      • Ancillary Treatment of Bacterial UTIs
      • Dosage Regimens for Sporadic Bacterial Cystitis
      • Management of Recurrent Bacterial Cystitis
      • Management of Relapsing UTIs
      • Subclinical Bacteriuria
      • Antimicrobial Resistance in Uropathogens
      • References
    • Pharmacotherapeutics in Fungal Urinary Tract Infections in Animals
    • Diuretics Used to Treat Urinary Disease in Animals
      • Loop Diuretics
        • Furosemide
        • Torsemide
      • Thiazide Diuretics
      • Potassium-Sparing Diuretics
      • Carbonic Anhydrase Inhibitors
      • Osmotic Diuretics
    • Dopamine for Treatment of Urinary Disease in Animals
    • Pharmacotherapeutics in Glomerular Diseases in Animals
    • Pharmacotherapeutics in Diabetes Insipidus in Animals
    • Controlling Urine pH in Animals
    • Cystine-Binding Agents Used to Treat Urinary Disease in Animals
      • Allopurinol
    • Pharmacotherapeutics in Urinary Incontinence in Dogs and Cats
      • Estrogens
      • Alpha-Adrenergic Agonists
      • Testosterone
    • Pharmacotherapeutics in Urine Retention in Animals
    • Pharmacotherapeutics in Seminal Vesiculitis in Bulls
    • Pharmacotherapeutics in Urolithiasis in Animals
      • For More Information
    Antimicrobials
    • Antimicrobial Drug Factors for Animals
      • Mechanism of Action
      • Drug Disposition
      • Virulence and Resistance
        • Antimicrobial Stewardship
        • Special Considerations for Food Animal Veterinarians
    • Microbiology Testing for Animals
      • Microbiological Diagnosis
      • Interpretation of Culture and Susceptibility Testing
    • Antimicrobial Polytherapy for Animals
    • Overview of Antimicrobials for Animals
    • Design of Dosing Regimens for Animals
      • References
    Anthelmintics
    • Anthelmintic Drugs for Animals
    • Pharmacodynamics: Mechanisms of Anthelmintic Action in Animals
      • Cellular Integrity
      • Neuromuscular Coordination
      • Key Points
      • For More Information
    • Pharmacokinetics of Anthelmintics in Animals
      • Benzimidazoles and Probenzimidazoles
      • Imidazothiazoles
      • Tetrahydropyrimidines
      • Macrocyclic Lactones
      • Amino-Acetonitrile Derivatives
      • Cyclic Octadepsipeptides
      • Spiroindoles
      • Nitrophenols and Salicylanilides
      • Praziquantel
      • Key Points
      • For More Information
      • References
    • Withholding Periods After Anthelmintic Treatment in Animals
      • Key Points
    • Safety of Anthelmintics in Animals
      • Key Points
    • Resistance to Anthelmintics in Animals
      • Key Points
      • For More Information
    • Combination Anthelmintics for Animals
    Antibacterial Agents
    • Streptogramins Use in Animals
    • Lincosamides Use in Animals
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal Times
    • Novobiocin Sodium Use in Animals
    • Ionophores Use in Animals
    • Beta-Lactam Antimicrobial Use in Animals
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
    • Penicillins Use in Animals
      • Classes by Spectrum
        • Narrow-Spectrum Beta-Lactamase–Sensitive Penicillins
        • Broad-Spectrum Beta-Lactamase–Sensitive Penicillins
        • Broad-Spectrum Beta-Lactamase–Sensitive Penicillins With Extended Spectra
        • Beta-Lactamase–Protected Penicillins
        • Narrow-Spectrum Beta-Lactamase–Resistant Penicillins
        • Carbapenems
      • General Properties
        • Structure-Activity Relationships
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
    • Cephalosporins and Cephamycins Use in Animals
      • Classes and Antibacterial Spectra
        • First-Generation Cephalosporins
        • Second-Generation Cephalosporins
        • Third- and Fourth-Generation Cephalosporins
      • General Properties
      • Antimicrobial Activity
        • Bacterial Resistance
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Parameters
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
    • Aminoglycosides Use in Animals
      • Classes
        • Narrow-Spectrum Aminoglycosides
        • Expanded-Spectrum Aminoglycosides
        • Miscellaneous Aminoglycoside Antimicrobials
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antibacterial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation, Excretion, and Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
      • Miscellaneous Aminocyclitol Antimicrobials
    • Quinolones, Including Fluoroquinolones, for Use in Animals
      • Classes
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
      • For More Information
    • Sulfonamides and Sulfonamide Combinations Use in Animals
      • Classes
        • Standard-Use Sulfonamides
        • Highly Soluble Sulfonamides Used for Urinary Tract Infections
        • Potentiated Sulfonamides
        • Topical Sulfonamides
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Regulatory Considerations and Drug Withdrawal and Milk Discard Times
    • Tetracyclines Use in Animals
      • Classes
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
    • Phenicols Use in Animals
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
    • Macrolide Use in Animals
      • Classes
      • General Properties
      • Antimicrobial Activity
        • Mode of Action
        • Bacterial Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation
        • Excretion
        • Pharmacokinetic Values
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
        • Drug Withdrawal and Milk Discard Times
    • Polymyxins Use in Animals
    • Bacitracins Use in Animals
    • Glycopeptides Use in Animals
    • Tiamulin Fumarate Use in Animals
    • Rifamycins Use in Animals
    • Nitrofurans Use in Animals
      • Nitrofurantoin
      • Nitrofurazone
      • Furazolidone
    • Nitroimidazoles Use in Animals
      • Metronidazole
    Antifungal Agents
    • Allylamines for Use in Animals
      • Antifungal Activity
      • Mode of Action
      • Fungal Resistance
      • Antifungal Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation and Pharmacokinetics
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
    • Iodides for Use in Animals
    • Overview of Antifungal Agents for Use in Animals
    • Polyene Macrolide Antimicrobials for Use In Animals
      • Antifungal Activity
        • Mode of Action
        • Fungal Resistance
        • Antifungal Spectra
        • Preparations
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation and Excretion
        • Pharmacokinetics
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
    • Azoles for Use in Animals
      • Antifungal Activity
        • Mode of Action
        • Fungal Resistance
        • Antimicrobial Spectra
      • Pharmacokinetic Features
        • Absorption and Distribution
        • Biotransformation and Excretion
        • Pharmacokinetics
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
    • Fluoropyrimidines for Use in Animals
      • Antifungal Activity
        • Mode of Action
        • Fungal Resistance
        • Antifungal Spectra
      • Pharmacokinetic Features
        • Absorption and Distribution
        • Biotransformation and Excretion
        • Pharmacokinetics
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
    • Griseofulvin for Use in Animals
      • Antifungal Activity
        • Mode of Action
        • Fungal Resistance
        • Antifungal Spectra
      • Pharmacokinetic Features
        • Absorption
        • Distribution
        • Biotransformation and Pharmacokinetics
      • Therapeutic Indications and Dose Rates
      • Special Clinical Concerns
        • Adverse Effects and Toxicity
        • Interactions
        • Effects on Laboratory Tests
    • Topical Antifungal Agents for Use in Animals
      • Respiratory Therapy
      • Aural Therapy
      • Ocular Therapy
    Antineoplastic Agents
    • Overview of Antineoplastic Agents
      • Effects of Chemotherapy on Tumor Growth
      • Principles of Antineoplastic Chemotherapy
      • Resistance to Antineoplastic Agents
      • Conventional Chemotherapeutic Agents
      • Patterns of Toxicity
    • Targeted Antineoplastic Agents in Animals
      • Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
      • Metronomic Chemotherapy
      • Receptor Tyrosine Kinase Inhibitors
      • Cancer Vaccines
      • Immunostimulants
      • Monoclonal Antibodies
      • Novel Drugs
    • Safe Handling of Antineoplastic Chemotherapeutic Agents Used in Animals
    Antiseptics and Disinfectants
    • Overview of Antiseptics and Disinfectants for Use With Animals
      • Disinfection: Process and Facility Design Factors
    • Acids and Alkalies as Antiseptics and Disinfectants for Use With Animals
      • Acids
      • Alkalies
    • Alcohols as Antiseptics and Disinfectants for Use With Animals
    • Biguanides as Antiseptics and Disinfectants for Use With Animals
    • Oxidizing Agents as Antiseptics and Disinfectants for Use With Animals
      • Peroxides
      • Halogens and Halogen-Containing Compounds
        • Chlorine
        • Iodine
        • Fluorine
    • Metals as Antiseptics and Disinfectants for Use With Animals
    • Phenols and Related Compounds as Antiseptics and Disinfectants for Use With Animals
    • Reducing Agents as Antiseptics and Disinfectants for Use With Animals
    • Surface-active Compounds (Surfactants) as Antiseptics and Disinfectants for Use With Animals
      • Anionic Surfactants
      • Cationic Surfactants
    • Other Antimicrobial Agents for Use With Animals
    • Vapor-Phase Disinfectants for Use With Animals
    • Heat as a Disinfectant for Use With Animals
    • Ultraviolet Light as Antiseptic and Disinfectant for Use With Animals
    • Practical Summary of Antiseptic and Disinfectant Use in Animals
    Antiviral Agents
    • Overview of Antiviral Agents Used in Animals
    • Miscellaneous Antiviral Agents Used in Animals
      • References
    • Pyrimidine Nucleosides Used in Animals
    • Purine Nucleosides Used in Animals
      • Acyclovir
        • References
      • Amantadine
        • References
      • Cidofovir
      • Penciclovir and Famciclovir
        • References
      • Valacyclovir
      • Vidarabine
      • Zidovudine
        • References
    Ectoparasiticides
    • Ectoparasiticides Used in Large Animals
      • Chemotherapeutic Agents
        • Organophosphates and Carbamates
        • Pyrethrins and Synthetic Pyrethroids
        • Macrocyclic Lactones (Avermectins and Milbemycins)
        • Formamidines
        • Chloronicotinyls and Spinosyns
        • Insect Growth Regulators and Feed-Through Larvicides
        • Miscellaneous Compounds
      • Integrated Control
      • Biological Control
      • Anti-Tick Vaccines
      • Off-Host Control
      • Safety Restrictions
        • Key Points
        • For More Information
    • Ectoparasiticides Used in Small Animals
      • Active Chemical Ingredients
        • Macrocyclic Lactones
        • Cholinesterase Inhibitors
        • Neonicotinoids
        • Formamidines
        • Oxadiazines
        • Isoxazolines
        • Insect Growth Regulators
        • Phenylpyrazoles
        • Pyrethrins and Pyrethroids
        • Spinosyns
        • Synergists
        • Repellents
      • Target Parasite Efficacy
      • Toxicity
      • Delivery Systems
        • For More Information
    Growth Promotants and Production Enhancers
    • Overview of Growth Promotants and Production Enhancers in Animals
    • Use of Steroid Hormones in Animals
      • Endogenous Steroids
        • Estradiol
        • Testosterone
        • Progesterone
      • Synthetic Steroids
      • Synthetic Nonsteroidal Estrogens
      • Use in Cattle
      • Use in Horses
      • Use in Other Species
      • Possible Complications
      • Factors Affecting Response
    • Use of Growth Hormone in Animals
    • Use of Beta-Adrenergic Receptor Agonists in Animals
    • Antimicrobial Feed Additives for Animals
      • Ionophore antimicrobials
      • Nonionophore antimicrobials
    • Probiotics for Animals
    Inflammation
    • Overview of Inflammation in Animals
      • For More Information
    • Pathophysiology of Inflammation in Animals
      • For More Information
    • Chemical Mediators of Inflammation in Animals
      • For More Information
    • Antihistamines in Animals
      • For More Information
    • Corticosteroids in Animals
      • Mode of Action
      • Physiologic and Pharmacologic Effects
      • Administration and Pharmacokinetics
      • Adverse Effects
      • Therapeutic Uses
      • For More Information
    • Nonsteroidal Anti-inflammatory Drugs in Animals
      • Mode of Action
      • Pharmacologic Effects
      • Administration and Pharmacokinetics
      • Adverse Effects
      • Specific Nonsteroidal Anti-inflammatory Drugs
        • Aspirin
        • Acetaminophen
        • Phenylbutazone
        • Meclofenamic Acid
        • Tolfenamic Acid
        • Flunixin
        • Carprofen
        • Ketoprofen
        • Etodolac
        • Vedaprofen
        • Meloxicam
        • Deracoxib
        • Firocoxib
        • Robenacoxib
        • Mavacoxib
        • Grapiprant
        • Dipyrone
        • Other NSAIDs
      • For More Information
    • Chondroprotective Agents in Animals
      • Polysulfated Glycosaminoglycan
      • Pentosan Polysulfate Sodium
      • Hyaluronan
      • Orgotein
      • For More Information
    Vaccines and Immunotherapy
    • Active Immunity in Animals
      • For More Information
    • Types of Vaccines for Animals
      • Nonliving Vaccines
        • Subunit Vaccines
        • Antigens Generated by Gene Cloning
        • DNA Plasmid Vaccines
        • RNA Vaccines
      • Modified Live Virus Vaccines
        • Attenuated Vaccines
        • Gene-Deleted Vaccines
        • Virus-Vectored Vaccines
      • Key Points
      • For More Information
    • Administration of Vaccines in Animals
      • Route of Administration
      • Combination Vaccines
      • Vaccination Schedules
      • DIVA Vaccines
      • Key Points
      • For More Information
    • Immunologic Adjuvants in Animals
    • Vaccine Failure and Other Adverse Events in Animals
      • Key Points
      • For More Information
    • Production of Vaccines for Animals
    • Passive Immunity in Animals
      • Polyclonal Antibodies
      • Monoclonal Antibodies
    • Nonspecific Immunotherapy in Animals
    • Tumor Immunotherapy in Animals
      • For More Information
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