I package half tabs for just a few drugs. I have used a blister style package for my half tabs and my normal packaging machine for my full tabs. This makes a nice visual difference. This works well here. I have in the past used different color bins, like blue are my normal and yellow are my half tabs. Or I also have purchased in the past a bin with a hinged lid that that was designated for the half tabs. So just stay flexible, keep thinking, and if you try something and it doesn’t work. Don’t give up just try something else. The important thing is to think outside of the box and stay flexible.
A half tablets shouldn't be any different than a different strength. So, if packaging a half tab, it might be better to create a different item and stock it separately. A lot depends on each hospital processes.