How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Dog Veterinary
Satisfied Customers: 25646
Experience:  University of California at Davis graduate veterinarian with 44 years of experience
55012488
Type Your Dog Veterinary Question Here...
Dr. Michael Salkin is online now
A new question is answered every 9 seconds

How is clavamox still effective after expiration date?

Customer Question

How long is clavamox still effective after expiration date?
Submitted: 1 year ago.
Category: Dog Veterinary
Expert:  Dr. Michael Salkin replied 1 year ago.

Percentage concentrations of reconstituted amoxicillin-clavulanate potassium powder (Clavamox, e.g.) were over 90% up to the fifth day, degradation was extensive by the seventh day with amoxicillin concentration falling below 80% while clavulanate had values less than 70% at seven days post-reconstitution. The foil wrapped tablets are likely to remain stabile, however, up to 6 months (at least; one study showed stability up to 48+ months) past-expiration with any degradation likely to be insignificant as to clinical effectiveness. It does not remain stabile outside the foil wrapping and so only one tablet should be unwrapped at a time. Please respond with further questions or concerns if you wish.

Related Dog Veterinary Questions