the efficacy and tolerance of alpha- [ 4- ( 1,1-dimethylethyl ) phenyl ] -4- ( hydroxyphenylmethyl ) -1- piperidinebutanol ( terfenadine , rmi 9918 , triludan , teldane , resp . ) and clemastine were investigated in 20 patients in a single blind , randomized clinical study of three months duration .
C0085173
terfenadine
C0699931
teldane