Hi folks, Thanks for all the potential life saving information on Demerol. I have checked with the Chemist (Pharmacy) and they tell me in the United Kingdom Demerol is sold as PETHIDINE. The pharmacist said it was an opiate and as it had a dulling effect on the brain SHOULD NOT be taken by PDers regardless of PD drugs taken. Looks like this drug is one to know and avoid by us people. Bye, Ernie Peters ([log in to unmask])