The present disclosure relates to nozzles for removing a preservative from a fluid comprising a therapeutic agent to an eye. More particularly, the nozzles disclosed herein may minimize patient exposure to preservative by rapidly and selectively removing a preservative from a solution comprising a therapeutic agent. An example nozzle may comprise a flow diverter which directs a flow path from a fluid inlet to a fluid outlet over a length longer than the distance from the inlet to the outlet. In some cases, the nozzle may comprise a preservative removing agent.本發明係關於用於自包含針對眼睛之治療劑之流體中移除防腐劑之噴嘴。更特定言之,本文所揭示之該等噴嘴可藉由自包含治療劑之溶液中快速及選擇性移除防腐劑使患者對防腐劑的曝露降至最低。例示性噴嘴可包含流動分流器,其引導自流體入口至流體出口的流動路徑,該流動路徑的長度長於自該入口至該出口之距離。在一些情況下,該噴嘴可包含防腐劑移除劑。