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Rabbits/Using expired SMZ/TMP

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Question
Hello,

I have a 5 year old bunny who has been on SMZ/TMP (liquid)every month for a few years now. I was recently told I may be able to use a bottle of liquid SMZ/TMP even though it expired a few days ago. Is this safe for my bunny or should I just order another bottle? They seem to go bad before she can use it all. I am currently ordering the 16 oz. bottle.
I would greatly appreciate your opinion or thoughts on this matter.
Thank you,
Jennifer Schmid

Answer
Dear Jennifer,

First question:  Do you mean that you give the bunny SMZ/TMP once a month?  That seems...odd.  Please clarify, so I can give you a better answer.

What dose, and for how long each month?  For what reason?

It's not a good idea to give antibiotics long-term without a really good reason.  Just saying.

A medication that expired only a few days is almost certainly still fine to use, though.

Dana

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Dana Krempels, Ph.D.

Expertise

I've lived with companion rabbits for more than 35 years, and consider them members of my family. I can answer any questions about the biology and health of rabbits, from the commonplace to the unusual. But please note:

RULE #1:
THE INTERNET IS NOT THE PLACE TO SEEK HELP IN AN EMERGENCY.

...it is an EMERGENCY.

Find a rabbit vet at www.rabbit.org/vet for immediate help, and don't risk your bunny's life by spending time asking questions online! If you can't get in touch with your vet, read these Emergency Sick Bunny Instructions.

If you have found a wild baby rabbit, please read these EMERGENCY INSTRUCTIONS FOR WILD BABY RABBITS and then use this link to FIND A LOCAL WILDLIFE REHABILITATOR who can give you the right advice.


RULE #2:
Help me help you! Please make your subject line informative if you have an urgent question. then LET ME KNOW IN THE SUBJECT LINE so I can give your question highest priority over non-urgent questions. If you don't do this, then I can't guarantee timely assistance!

For all the best, most accurate rabbit health, care and behavior information, visit The House Rabbit Society.

Experience

I have been rescuing and rehabilitating domestic and wild rabbits for about 30 years. I have written articles for many rabbit rescue publications, as well as for the veterinary journal, Exotic DVM. I own EtherBun, the internet's largest listserve dedicated to health, care, and behavior of domestic rabbits.

Organizations
Houserabbit Adoption, Rescue, and Education, Inc. (H.A.R.E., Inc.) president National House Rabbit Society (Board member)

Publications
Exotic DVM
Warren Peace (Journal of the House Rabbit Society of Miami)
Various newsletters of the House Rabbit Society, nationwide

Education/Credentials
Ph.D - Biology
B.S. - Biology
B.A. - English

Awards and Honors
Lightspan Academic Excellence Award for web site on rabbit health and biology
(http://www.bio.miami.edu/hare)

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