I was given penicillin G for another rabbit of mine that had an abscess on his jaw that went away with that treatment. However since about yesterday another bun of mine has been pretty gurgly in his nose. Even picking him up aggravates it. So I would like to give him the pen G i have,BUT i need to add a sterile dirulent to it the bottle. The directions i have are for an almost 7 pound rabbit, The rabbit who needs it is just shy of 9 pounds. Current directions are to add 1,8ml of sterile dirulent and give 0.25ml every 24 hours for 5 days. Should i just go with the initial directions?