A 30-year-old female patient with idiopathic sudden hearing loss was treated with anisodamine hydrobromide injection. After 10 minutes of the intravenous injection of this drug, the patient suffered from hypoptyalism and taste disorder for two days. After the second medication, the patient's taste recovery time was significantly shortened by holding the ice water in mouth compared to the first time. Hypoptyalism and taste disorder were considered to be the adverse drug reaction caused by anisodamine hydrobromide injection. After withdrawal the suspected drug, the patient did not experience any further discomfort since. Although taste disorder is not life-threatening, it directly affect the patient's medication experience and quality of life, clinical awareness and attention of the adverse reactions should be increased.

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