Suvaxyn M. hyo - Parasuis Dosage and administration The vaccine should be shaken well before use. Administer a 2.0 ml dose by intramuscular injection only. Second vaccination should be administered preferably at the alternate side of the neck. Vaccination schedule: Pigs can be vaccinated from the age of 7 days and older. A second vaccination should be given 14-21 days later. Advice on correct administration: It is good practice to allow vaccine to warm to body temperature in the hand or pocket before administration, to avoid the discomfort of injection of a cold liquid.