i would like to thank you both for your replies you have give me a big relief i was dreading taking Charlie to the vets coz hes an old fart that would have gave me 3rd degree lecture and made out my son has poisoned Charlie other than that he is a top specialist vet think ill go and get stonned now ha ha xthanks p.s I THINK YOU HAVE A VERY GOOD SITE FULL OF INFO TO READ WELL DONE TO YOU ALL