I have a query regarding panadol...why does it make you sleepy? cannot find any answer anywhere, so thought I'd post it here, as it was a question put to us by our lecturers (im a 1st year undergrad)....
well, joanne, you've just helped me so much as well. what a perfect way to explain it!! (can't understand why I hadn't thought of it before either- i think i just shut down when theres more than one...