The pharmacy (Apotheke in German) with the longest opening hours is Benu in the underground shopping area of the main train station. It is open Mon - Sat 06:00 - 22:00, Sun 08:00 - 20:00 ((+41) 41 220 13 13). If you are in urgent need of medication outside these hours contact (+41) 900 11 14 14 (3.23Sfr/min.).