Sedating children on a plane

I'm all for sedation for myself, I'm a nervous flier so pre babies I used to enjoy a Xanax and glass of red wine!  I used to give my 3 year old some Calpol and Piriton (antihistamine) before every longhaul flight.  However, I'm not actually convinced it does much.  On my most recent flight back from the UK, my friend had some Phenergen liquid.  We promptly gave it to the 3 year olds and they passed out within half an hour!  My daughter slept for longer than she's ever slept on a flight before although she did wake up rather groggy. In conclusion I will be buying my own Phenergen and adding it to my list of travel necessities.  It can also greatly help jetlag at the other end

Please note these are my views only and if you want to give it to your child do your homework and read the facts!

http://www.drugs.com/phenergan.html