Hey Guys, have a sick Burm here and had a few specific questions. The culture showed sensitivity to Fortaz (Ceftadzidime). What I'd like to know is what concentration people are using.

I see 1 gram, 2 gram, and 6 gram available. Being a Burm he is a big guy, 17.4 kilograms to be exact. Obviously 6 gram seems the best choice but I'm finding only 50 mL vials which means a bigger injection. My next question is what is the largest mL amount you can inject IM?

I'm waiting for a call from a compounding pharmacy but wanted some more input. My vet hasn't dealt with a snake this large so she's not familar with more than 2 gram Fortaz reconstitution. Also seems like right now Fortaz is hard to find, some pharmacies say they can't get it till April.
Any help is appreciated. I have been nebulizing with F10 SC and he has improved as far as no more discharge but is still wheezing. Tonight would be his last treatment (day 10).