Glad it all went ok Shinamae. I had to drink the vile stuff about 3 years ago before a procedure, and ended up phoning the department in tears because I just couldn't force down the last bit. They said it would be ok to leave it. It was down the sink in seconds!
One tip I had , from a nurse at work, was to have a children's lollipop by me, and have a quick drink , then suck the lolly. It did help a bit, but that stuff is disgusting. I'm sure it could be made to taste more pleasant.
Take care xx