As I live the optimistic life, I purchased well in advance this heart medication for my girl who passed away 2 wks ago. I now have 3 sealed boxes containing sealed Vetmedin (pimobendan) 50 chewables per container. If anyone out there is in need due to this devastating disease. Give me a call & I will happily supply you with untouched current medicine. I do not know if this is ok to post but if not alert me and I will delete. My email is [email protected] Hopes are that no one is in need at this time but from what I see on this forum, most of us are touched by it at one time or other. Enjoy your companions.