Disclosed are novel isoquinoline propionamides and their acid salts represented by the structural formula: ##STR1## wherein R is alkyl of 1 to 6 carbon atoms, methylcycloalkyl of 4 to 7 carbon atoms or alkaryl of 7 to 8 carbon atoms; R' is H or OCH.sub.3 ; A is N or CH; X is H, Cl or CH.sub.3 ; n is 0 or 1; Y is a pharmacologically acceptable, non-toxic acid and p and q are 0 or 1. These compounds exhibit analgesic properties.