Aux used to dissolves penicillin sylvite inside benzene methanol, in order to reduce the ache when inject, but bring about scleroma so easily, cause sweeny.

• 过去常把青霉素钾盐溶解在苯甲醇内，以减轻注射时的疼痛，但这样容易导致硬结，引起肌肉萎缩。