Abstract: Summary A method for the purification of the deprotected free amlodipine base, present in the reaction mixture following deprotection of an N-protected amlodipine compound, whereby (i) the reaction mixture containing the deprotected amlodipine free base, optionally after a preceeding filtration, is evaporated to dryness, or the solvent removed from the reaction mixture, (ii) the amlodipine free base contained in the residue thus obtained, is dissolved in a suitable solvent and (iii) the amlodipine free base is precipitated from said solution.