Home infusion pharmacist here, hoping to shed some light on this topic.
Primarily what we deal with are antibiotics, TPN, hydration, chemo, PCA's, intrathecal injections, and some penile injection stuff.
Typical day for me: Review the list of patients on service, prioritize based on where they live (delivery) dosing schedule and drug, fill the scripts, call docs constantly to make suggestions, discuss end of therapies, continutity of care with nursing agencies, call patients to do monitoring, always am checking on labs and evaluating them. I then have to make sure our pumps are all in good working condition, check on the sterility tests, support the techs, etc.
All in all, its really enjoyable. No phones ringing off the hook. Billing department takes care of the insurance issues. I get to do lots of vanco dosing and use clinical skills that retail and some institutional settings don't lend themselves too. Docs listen and respect us, patients appreciate our phone calls, and I go home at night satisfied that I did a good job.
Now for the cons,
Nurses and nursing services get kinda bitchy and always blame the pharmacist if anything goes amiss. To get insurance to pay for home infusion (especially medicare and medicaid) you have to gather a ridiculous amount of information to put on the script. There is often a clash between morally what a pharmacist has to do and finding ways to get paid for it (Like changing the abx due to adverse reaction, but insurance wont pay for the other one and not wanting to delay therapy). Call on nights and weekends is a downside. But the primary problem with home infusion is a grumpy boss or coworkers, but that is the same everywhere.