The dosage is 1 mL of injected subcutaneously. Open syringe by twisting or tapping the cap against a hard surface to break the heat weld. Prepare the vaccine by injecting the diluent into the vial containing the desiccated vaccine cake. Shake well. Withdraw entire contents into the syringe. Thoroughly prepare injection site with antiseptic. Lift the loose skin behind the neck or behind front leg and insert the needle. Inject entire contents of the syringe. Do not inject directly into the blood vessel.

IMPORTANT NOTE: Before injecting the vaccine, pull back slightly on the syringe plunger. If blood enters the syringe freely, choose another injection site. A recommended vaccination schedule should start at or about 6 weeks of age. The presence of maternal antibody is known to interfere with the development of active immunity. Puppies should be revaccinated every 2 to 3 weeks until at least 16 weeks of age. All dogs over 12 weeks of age should initially receive one dose of Spectra^® 9 and a second dose 2 to 3 weeks later. Annual revaccination with a single dose is recommended.

Do-it-yourself at home vaccines - vaccinateyourpets.com

See label for complete directions and precautions.