diff --git a/openhis-ui-vue3/src/views/doctorstation/components/prescription/prescriptionlist.vue b/openhis-ui-vue3/src/views/doctorstation/components/prescription/prescriptionlist.vue
index 10fa2a0d..7af5ef1e 100755
--- a/openhis-ui-vue3/src/views/doctorstation/components/prescription/prescriptionlist.vue
+++ b/openhis-ui-vue3/src/views/doctorstation/components/prescription/prescriptionlist.vue
@@ -313,6 +313,7 @@
                       data-prop="dispensePerDuration">
                       <el-input-number v-model="scope.row.dispensePerDuration" style="width: 80px" :min="1"
                         controls-position="right" :controls="false" :ref="(el) => (inputRefs.dispensePerDuration = el)"
+                        @change="calculateTotalAmount(scope.row, scope.$index)"
                         @keyup.enter.prevent="
                           handleEnter('dispensePerDuration', scope.row, scope.$index)
                           ">