Abstract: Imidazo(4,5-c)pyridines of the formula ##STR1## wherein X is O, S or NH;Y is --NR.sup.2 --CH.dbd.N-- or --N.dbd.CH--NR.sup.2 --;R.sup.1 is 1-benzothienylmethyl, naphthylmethyl, or benzyl which is mono- or di-substituted by F, Cl, NO.sub.2, CF.sub.3 or a combination thereof, and;R.sup.2 is alkyl of 1-4 C atoms or cyclopropylmethyl,or a physiologically acceptable acid addition salt thereof,have valuable pharmacological activity, e.g., as GABA agonists.

Abstract: Indolealkylamines of the formula ##STR1## wherein Ind is 1-R.sup.4 -2-R.sup.5 -indol-3-yl or the corresponding group in which the benzene ring is monosubstituted to trisubstituted by alkyl, O-alkyl, S-alkyl, OH, F, Cl, Br, CF.sub.3 or CN; A is --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --CO-- or --CO--(CH.sub.2).sub.2 --CO--; R.sup.1 is H or methyl; R.sup.2 is H or together with R.sup.3 is a C--C bond; R.sup.3 is H or together with R.sup.2 is a C--C bond; R.sup.4 and R.sup.5 are each H, alkyl, or phenyl; and Ar is phenyl or phenyl monosubstituted or disubstituted by alkyl, F, Cl, Br, I or CF.sub.3 ; wherein alkyl in each case is of 1-4 carbon atoms;and the physiologically acceptable acid addition salts thereof possess valuable pharmacological properties.