The doctor prescribed clonazepam to relieve his anxiety symptoms temporarily.

clonazepam 是药物名称，中文译作"氯硝西泮"，属于苯二氮䓬类药物。这类药物主要用于治疗焦虑症、癫痫等神经系统疾病，具有镇静、抗焦虑和肌肉松弛作用。