I never used chlorampenical orally in a rabbit but I used it an eye salve for Beau who had an infected eye ulcer that would not respond to any other antibiotic
I pulled upSomebunny's thread dealing with Han's abscess.
The problem is that we do not know if benacillin casued Han's death or if Streisand possibly hit a vein . ..or if something else happened . Streisand went as far as talking to the woman who wrote the first article on bicillin ( Marcy Moore)
http://www.rabbitsonline.net/view_topic.php?id=48224&forum_id=16&highlight=Hans
I know that Pipp has used bicillin subqutaneously with oral chlorampenical . I think that oral chlorampenical is an excellent rabbit antibiotic but many vets don't want to prescribe it because it can be dangerous to humans if they come in contact with it; it can cause white blood cell destruction in humans.
When I used the eye salve I wore plastic gloves; I would not hesitate to use this drug butI would be careful not to get it on my skin.
I personally would be afraid to use benacillin again and this is not based on anything really substanial other than I was also disturbed that Hans died.
if you are seeing Streisand's vet you could find out if the vet has used benacillin on other rabbits succesfully. I would also ask the vet if there is any way that he could get the human version of bicillin . Maybe that is available in Malaysia
Randy has used Zithromax ( Azithromycin ) ver successfully , however, for absesses he has used it in combination with bicillin.
You need to compile a list of drugs when you see Han's vet to ask him about
choramphenical
azithromycin (Zithromax)
bicillin ( a combo of procaine penicillin G and benzathine G penicllins)
Convenia
I may also attempt to post questions on etherbun re benacillin.