diff --git a/backend/pmr_api.py b/backend/pmr_api.py
index 52d1f83..b97c738 100644
--- a/backend/pmr_api.py
+++ b/backend/pmr_api.py
@@ -176,7 +176,7 @@ def get_prescription_detail(prescription_id):
             conn.close()
             return jsonify({'success': False, 'error': '처방전을 찾을 수 없습니다'}), 404
         
-        # 처방 약품 목록 (PS_sub_pharm + PM_DRUG.CD_GOODS JOIN)
+        # 처방 약품 목록 (PS_sub_pharm + CD_GOODS + CD_MC JOIN)
         medications = []
         cursor.execute("""
             SELECT 
@@ -187,17 +187,24 @@ def get_prescription_detail(prescription_id):
                 s.PS_Type,
                 s.INV_QUAN,
                 g.GoodsName,
-                g.SUNG_CODE
+                g.SUNG_CODE,
+                m.PRINT_TYPE,
+                m.SIM_EFFECT
             FROM PS_sub_pharm s
             LEFT JOIN PM_DRUG.dbo.CD_GOODS g ON s.DrugCode = g.DrugCode
+            LEFT JOIN PM_DRUG.dbo.CD_MC m ON s.DrugCode = m.DRUGCODE
             WHERE s.PreSerial = ?
             ORDER BY s.SUB_SERIAL
         """, (prescription_id,))
         
         for row in cursor.fetchall():
+            # 효능: PRINT_TYPE > SIM_EFFECT > 없음
+            add_info = row.PRINT_TYPE or row.SIM_EFFECT or ''
+            
             medications.append({
                 'medication_code': row.DrugCode or '',
                 'med_name': row.GoodsName or row.DrugCode or '',
+                'add_info': add_info,
                 'dosage': float(row.QUAN) if row.QUAN else 0,
                 'frequency': row.QUAN_TIME or 0,
                 'duration': row.Days or 0,
@@ -346,6 +353,7 @@ def preview_label():
         
         patient_name = data.get('patient_name', '')
         med_name = data.get('med_name', '')
+        add_info = data.get('add_info', '')
         dosage = float(data.get('dosage', 0))
         frequency = int(data.get('frequency', 0))
         duration = int(data.get('duration', 0))
@@ -355,6 +363,7 @@ def preview_label():
         image = create_label_image(
             patient_name=patient_name,
             med_name=med_name,
+            add_info=add_info,
             dosage=dosage,
             frequency=frequency,
             duration=duration,
@@ -377,7 +386,7 @@ def preview_label():
         return jsonify({'success': False, 'error': str(e)}), 500
 
 
-def create_label_image(patient_name, med_name, dosage, frequency, duration, unit='정'):
+def create_label_image(patient_name, med_name, add_info='', dosage=0, frequency=0, duration=0, unit='정'):
     """
     라벨 이미지 생성 (29mm 용지 기준)
     """
@@ -442,19 +451,17 @@ def create_label_image(patient_name, med_name, dosage, frequency, duration, unit
     # 괄호 앞에서 분리
     if '(' in med_name:
         main_name = med_name.split('(')[0].strip()
-        sub_info = '(' + med_name.split('(', 1)[1] if '(' in med_name else ''
     else:
         main_name = med_name
-        sub_info = ''
     
     # 약품명 줄바꿈
     name_lines = wrap_text(main_name, drug_font, label_width - 30)
     for line in name_lines:
         y = draw_centered(line, y, drug_font)
     
-    # 부가정보
-    if sub_info:
-        y = draw_centered(sub_info, y, small_font, fill="gray")
+    # 효능효과 (add_info)
+    if add_info:
+        y = draw_centered(f"({add_info})", y, small_font, fill="gray")
     
     y += 5
     
diff --git a/backend/templates/pmr.html b/backend/templates/pmr.html
index 8e1bfbc..8c39e33 100644
--- a/backend/templates/pmr.html
+++ b/backend/templates/pmr.html
@@ -316,6 +316,14 @@
     <script>
         let currentPrescriptionId = null;
         
+        // HTML 이스케이프
+        function escapeHtml(text) {
+            if (!text) return '';
+            const div = document.createElement('div');
+            div.textContent = text;
+            return div.innerHTML;
+        }
+        
         // 초기화
         document.addEventListener('DOMContentLoaded', () => {
             const today = new Date().toISOString().split('T')[0];
@@ -429,11 +437,12 @@
                                 </thead>
                                 <tbody>
                                     ${data.medications.map(m => `
-                                        <tr>
+                                        <tr data-add-info="${escapeHtml(m.add_info || '')}">
                                             <td><input type="checkbox" class="med-check" data-code="${m.medication_code}" ${m.is_auto_print ? 'checked' : ''}></td>
                                             <td>
                                                 <div class="med-name">${m.med_name || m.medication_code}</div>
                                                 <div class="med-code">${m.medication_code}</div>
+                                                ${m.add_info ? `<div style="font-size:0.75rem;color:#6b7280;">${escapeHtml(m.add_info)}</div>` : ''}
                                             </td>
                                             <td>${m.formulation ? `<span class="med-form">${m.formulation}</span>` : '-'}</td>
                                             <td><span class="med-dosage">${m.dosage || '-'}</span></td>
@@ -481,8 +490,8 @@
         
         // 라벨 미리보기
         async function previewLabels() {
-            const rows = document.querySelectorAll('.med-check:checked');
-            if (rows.length === 0) {
+            const checkboxes = document.querySelectorAll('.med-check:checked');
+            if (checkboxes.length === 0) {
                 alert('미리보기할 약품을 선택하세요');
                 return;
             }
@@ -496,12 +505,24 @@
             
             container.innerHTML = '';
             
-            for (const checkbox of rows) {
+            for (const checkbox of checkboxes) {
                 const tr = checkbox.closest('tr');
-                const medName = tr.querySelector('.med-name')?.textContent || '';
-                const dosage = parseFloat(tr.cells[3]?.querySelector('.med-dosage')?.textContent) || 0;
-                const frequency = parseInt(tr.cells[4]?.textContent) || 0;
-                const duration = parseInt(tr.cells[5]?.textContent) || 0;
+                const cells = tr.querySelectorAll('td');
+                
+                // 약품명: 두 번째 셀의 .med-name
+                const medName = tr.querySelector('.med-name')?.textContent?.trim() || '';
+                const addInfo = tr.dataset.addInfo || '';
+                // 용량: 네 번째 셀 (index 3)
+                const dosageText = cells[3]?.textContent?.replace(/[^0-9.]/g, '') || '0';
+                const dosage = parseFloat(dosageText) || 0;
+                // 횟수: 다섯 번째 셀 (index 4)
+                const freqText = cells[4]?.textContent?.replace(/[^0-9]/g, '') || '0';
+                const frequency = parseInt(freqText) || 0;
+                // 일수: 여섯 번째 셀 (index 5)
+                const durText = cells[5]?.textContent?.replace(/[^0-9]/g, '') || '0';
+                const duration = parseInt(durText) || 0;
+                
+                console.log('Preview data:', { patientName, medName, addInfo, dosage, frequency, duration });
                 
                 try {
                     const res = await fetch('/pmr/api/label/preview', {
@@ -510,6 +531,7 @@
                         body: JSON.stringify({
                             patient_name: patientName,
                             med_name: medName,
+                            add_info: addInfo,
                             dosage: dosage,
                             frequency: frequency,
                             duration: duration,
@@ -517,12 +539,15 @@
                         })
                     });
                     const data = await res.json();
+                    console.log('Preview response:', data.success, data.error);
                     
-                    if (data.success) {
+                    if (data.success && data.image) {
                         const img = document.createElement('img');
                         img.src = data.image;
                         img.style.cssText = 'max-width:100%;border:1px solid #ddd;border-radius:8px;';
                         container.appendChild(img);
+                    } else {
+                        console.error('Preview failed:', data.error);
                     }
                 } catch (err) {
                     console.error('Preview error:', err);
@@ -530,7 +555,7 @@
             }
             
             if (container.children.length === 0) {
-                container.innerHTML = '<p style="color:#999;">미리보기 생성 실패</p>';
+                container.innerHTML = '<p style="color:#999;">미리보기 생성 실패 - 콘솔(F12) 확인</p>';
             }
         }