Hi Boston
when major pain meds are introduced some dotors automatically give an anti emetic alongside as they can cause problems.Rob was also given a stomach protector(omeprazole) to reduce the irritant effects on the stomach lining.Vomiting feeds back is also a common problem,and mostly seems to be resolved by juggling with feeding formula,timing and speed it is given with.Even something as daft as the wrong flavour can cause nausea .rob could only tolerate vanilla as the smell of the others made him wretch before i got them any where near his feeding tube.Getting nutrition right is a real minefield,and i hope it gets sorted.the first few days of fentanyl patch can cause a zonked out look,but as the body gets used to the drug this may pass,unless your dad is one of the unfortunate people who just cant toerated it.

love liz