BEUTHANASIA-D SPECIAL- pentobarbital sodium and phenytoin sodium injection, solution 
Merck Sharp & Dohme Corp.




NADA #119-807


CAUTION Federal law restricts this drug to use by or on the order of a licensed veterinarian.

DESCRIPTION A nonsterile solution containing pentobarbital sodium and phenytoin sodium as the active ingredients. Rhodamine B, a bluish-red fluorescent dye, is included in the formulation to help distinguish it from parenteral drugs intended for therapeutic use. Although the solution is not sterile, benzyl alcohol, a bacteriostat, is included to retard the growth of microorganisms.

Each mL contains: active ingredients: 390 mg pentobarbital sodium (barbituric acid derivative), 50 mg phenytoin sodium; inactive ingredients: 10% ethyl alcohol, 18% propylene glycol, 0.003688 mg rhodamine B, 2% benzyl alcohol (preservative), purified water qs. Sodium hydroxide and/or hydrochloric acid may be added to adjust pH.

ACTIONS BEUTHANASIA-D SPECIAL EUTHANASIA SOLUTION contains two active ingredients which are chemically compatible but pharmacologically different. Each ingredient acts in such a manner so as to cause humane, painless, and rapid euthanasia. Euthanasia is due to cerebral death in conjunction with respiratory arrest and circulatory collapse. Cerebral death occurs prior to cessation of cardiac activity.

When administered intravenously, pentobarbital sodium produces rapid anesthetic action. There is a smooth and rapid onset of unconsciousness. At the lethal dose, there is depression of vital medullary respiratory and vasomotor centers.

When administered intravenously, phenytoin sodium produces toxic signs of cardiovascular collapse and/or central nervous system depression. Hypotension occurs when the drug is administered rapidly.

Pharmacodynamic Activity: The sequence of events leading to humane, painless, and rapid euthanasia following intravenous injection of BEUTHANASIA-D SPECIAL EUTHANASIA SOLUTION is similar to that following intravenous injection of pentobarbital sodium or other barbituric acid derivatives. Within seconds, unconsciousness is induced with simultaneous collapse of the dog. This stage rapidly progresses to deep anesthesia with concomitant reduction in the blood pressure. A few seconds later, breathing stops, due to depression of the medullary respiratory center; encephalographic activity becomes isoelectric, indicating cerebral death, and then cardiac activity ceases.

Phenytoin sodium exerts its effect during the deep anesthesia stage caused by the pentobarbital sodium. This ingredient, due to its cardiotoxic properties, hastens the stoppage of electrical activity in the heart.

INDICATIONS For use in dogs for humane, painless, and rapid euthanasia.

WARNING For canine euthanasia only. Must not be used for therapeutic purposes. Do not use in animals intended for food.

ENVIRONMENTAL HAZARD: This product is toxic to wildlife. Birds and mammals feeding on treated animals may be killed. Euthanized animals must be properly disposed of by deep burial, incineration, or other method in compliance with state and local laws, to prevent consumption of carcass material by scavenging wildlife.

HUMAN WARNING Caution should be exercised to avoid contact of the drug with open wounds or accidental self-inflicted injections. Keep out of reach of children. If eye contact, flush eyes with water and seek medical attention.

PRECAUTIONS Euthanasia may sometimes be delayed in dogs with severe cardiac or circulatory deficiencies. This may be explained by the impaired movement of the drug to its site of action. An occasional dog may elicit reflex responses manifested by motor movement; however, an unconscious animal does not experience pain, because the cerebral cortex is not functioning.

When restraint may cause the dog pain, injury, or anxiety, or danger to the person making the injection, prior use of tranquilizing or immobilizing drugs may be necessary.


Dosage: Dogs, 1 mL for each 10 pounds of body weight.

Administration: Intravenous injection is preferred. Intracardiac injection may be made when intravenous injection is impractical, as in a very small dog or in a comatose dog with impaired vascular functions. Good injection skill is necessary for intracardiac injection.

The calculated dose should be given in a single bolus injection.

For intravenous injection, a needle of sufficient gauge to ensure intravenous placement of the entire dose should be used. The use of a Luer-Lok® syringe is recommended to prevent accidental exposure due to needle/syringe separation.

HOW SUPPLIED BEUTHANASIA-D SPECIAL EUTHANASIA SOLUTION is available in 100-mL multiple-dose vials, NDC 0061-0473-05.

Manufactured by a nonsterilizing process.

STORAGE Store between 15° and 30°C (59° and 86°F).

Made in Canada.

Intervet Inc (d/b/a Merck Animal Health), Madison, NJ 07940

Copyright © 1992, 1995, 1999, 2003, Intervet Inc., a subsidiary of Merck & Co., Inc. All rights reserved.

Luer-Lok is a registered trademark of Becton, Dickinson and Company.

Rev. 04/15


NDC 0061-

100 mL





Caution: Federal law restricts
this drug to use by or on the order
of a licensed veterinarian.

NADA #119-807

Animal Health

pentobarbital sodium and phenytoin sodium injection, solution
Product Information
Product TypePRESCRIPTION ANIMAL DRUGItem Code (Source)NDC:0061-0473
Route of AdministrationINTRACARDIAC, INTRAVENOUSDEA ScheduleCIII    
Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
pentobarbital sodium (UNII: NJJ0475N0S) (pentobarbital - UNII:I4744080IR) pentobarbital sodium390 mg  in 1 mL
phenytoin sodium (UNII: 4182431BJH) (phenytoin - UNII:6158TKW0C5) phenytoin sodium50 mg  in 1 mL
#Item CodePackage DescriptionMarketing Start DateMarketing End Date
1NDC:0061-0473-051 in 1 CARTON
1100 mL in 1 VIAL
Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
Labeler - Merck Sharp & Dohme Corp. (001317601)

Revised: 9/2015
Document Id: b85a9ec0-bbd5-44e5-a5a4-63aa5dd6bfff
Set id: b65890b8-ab5a-45b4-8dce-4f3904e5078c
Version: 1
Effective Time: 20150917
Merck Sharp & Dohme Corp.