Abstract: Novel phenylalkanoic compounds of the formula I ##STR1## wherein R.sub.1 and R.sub.2 independently from each other represent hydrogen or alkyl with 1 to 8 carbon atoms, salts of such compounds and salts thereof, therapeutic uses of the phenylalkanoic compounds, or of the pharmacologically safe salts thereof for treating inflammatory diseases, tussive states, pain symptoms and pyretic diseases and pharmaceutical composition containing the phenylalkanoic compounds or the pharmacologically safe salts together with a carrier and an optional adjuvant or additive.