Hello,
I also ordered Bicillin from a California based company called tscpets.com . It took around 2 weeks to get to Greece, but the packaging was awesome and the bottle was actually still cold. I tried it today with an insulin sized needle and ended up splashing it all over my bunny's back. It has a very thick consistency (unlike the clear Pen G that I have been using for a month). I tried warming up the syringe by emersing it in a bowl of warm water for a few minutes, and it seemed to make a thinner consistency. I might end up having to dilute it with Water For Injection (Ringer's Lactated has sodium in it, so that might hurt more. Most human injections are prepared with Water For Injection anyhow, not Normal Saline or Ringer's Lactated).
My rabbit is battling with a leg abscess for over a month now. Daily Pen G worked well from the first week. She has had 2 operations already though. She was rescued with parts of her hind legs missing (looks like a birth defect, although the vet claims that it could be due to an injury). After an almost fatal GI stasis (on which she was operated on), she developed a leg abscess on on of her hind legs, from hitting it around (she was in terrible pain on the first two days of the stasis - was screaming in pain every half an hour. I still get chills remembering that). A week after lancing it and removing the thick pus, the vet had to operate on it because the bone was starting to protrude from the skin laceration. We had to get a second surgery yesterday because the stiches came off and the bone stuck out again.
Needless to say this is a very tough bunny with a strong will to live!!