How Long is a Reconstituted Vaccine Good for? By Vincent Iannelli, MD / August 22, 2020 / diluents, frozen, package inserts, pre-filled syringe, reconstituted vaccine, refrigerated vaccines, unused vaccine, Vaccine Education, vaccine errors, vaccine manufacturers, vaccine wastage Once it is prepared or reconstituted, how long do you have to use a vaccine? Share this:FacebookTwitterRedditPrintLinkedInPinterestEmailTumblrWhatsAppLike this:Like Loading...