Medicines have expiry dates so you know when to use them by. After the expiry date it may not be safe or as effective. Refrain from using the expired Kybella, as it will not be effective anymore. Always consult with a board certified medical provider.
Safety and efficacy may be compromised in an expired product, particularly when there is a 3 year lapse.I have to wonder why one would want to, I am hoping that expired medications are not being marketed.See a qualified dermatologist for the safest and most effective treatment.Take care and be safe!