I agree with LBJ10, I would not give up yet or jump to extreme treatments just yet.
I always go back to this article: http://www.bio.miami.edu/hare/ileus.html
Especially this bit:
“It is essential that the caretaker faced with a rabbit in GI stasis be patient, allowing the treatments and medications to work. Rabbits are easily stressed, and excessive handling should be avoided. It may take several days before any fecal pellets are seen, and it may take two weeks or more of motility therapy before the intestine is moving normally again. We know of one case in which a rabbit produced no fecal pellets for 14 days, but finally did respond to gentle, consistent administration of the above treatment regimen. Patience and persistence are key.
Do not make more trips to the veterinarian’s office with the rabbit than absolutely necessary (the stress of travel can slow recovery), but DO contact your veterinarian frequently to report on progress and any changes. Whenever possible, administer medications at home, where the rabbit feels safe and secure.”
and then this bit:
“PLEASE RESIST THE TEMPTATION TO FORCE ADDITIONAL, AGGRESSIVE TREATMENT ONCE THE RABBIT BEGINS TO RECOVER. RECOVERY FROM GI STASIS IS SOMETIMES MADDENINGLY GRADUAL. [We know of one instance in which a rabbit was starting to produce fecal pellets and showing signs of recovery, but the veterinarian overseeing the case insisted on anesthetizing the rabbit to perform oral gavage, enemas with an extension tube and vigorous abdominal massage. Despite advice to the contrary, this veterinarian believed that the mass in the stomach could not possibly pass without such treatment. Tragically, the rabbit died. Necropsy revealed a ruptured liver. We cannot help but wonder whether excessive handling and the unnecessarily aggressive treatments contributed to, or even caused this rabbit’s demise.]”
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.