diff --git a/backend/app.py b/backend/app.py
index 3e04016..f4d45e1 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -3125,6 +3125,23 @@ def api_products():
             if animal_only and not is_animal:
                 continue
                 
+            # APC 조회 (동물약인 경우)
+            apc = None
+            if is_animal:
+                try:
+                    apc_result = drug_session.execute(text("""
+                        SELECT TOP 1 CD_CD_BARCODE 
+                        FROM CD_ITEM_UNIT_MEMBER 
+                        WHERE DRUGCODE = :drug_code AND CD_CD_BARCODE LIKE '023%'
+                    """), {'drug_code': row.drug_code})
+                    apc_row = apc_result.fetchone()
+                    if apc_row:
+                        apc = apc_row[0]
+                    elif row.barcode:
+                        apc = row.barcode  # 바코드=APC 케이스
+                except:
+                    pass
+            
             items.append({
                 'drug_code': row.drug_code or '',
                 'product_name': row.product_name or '',
@@ -3134,9 +3151,44 @@ def api_products():
                 'supplier': row.supplier or '',
                 'is_set': bool(row.is_set),
                 'is_animal_drug': is_animal,
-                'stock': int(row.stock) if row.stock else 0
+                'stock': int(row.stock) if row.stock else 0,
+                'apc': apc,
+                'category': None,  # PostgreSQL에서 lazy fetch
+                'wholesaler_stock': None
             })
         
+        # 동물약 분류 Lazy Fetch (PostgreSQL) - 실패해도 무시
+        animal_items = [i for i in items if i['is_animal_drug'] and i['apc']]
+        if animal_items:
+            try:
+                from sqlalchemy import create_engine
+                pg_engine = create_engine('postgresql://admin:trajet6640@192.168.0.87:5432/apdb_master', 
+                                          connect_args={'connect_timeout': 3})  # 3초 타임아웃
+                with pg_engine.connect() as conn:
+                    apc_list = [i['apc'] for i in animal_items if i['apc']]
+                    if apc_list:
+                        placeholders = ','.join([f"'{a}'" for a in apc_list])
+                        # 분류 + 도매상 재고 조회
+                        result = conn.execute(text(f"""
+                            SELECT 
+                                A.apc, 
+                                A.llm_pharm->>'분류' as category,
+                                COALESCE(SUM(I.quantity), 0) as wholesaler_stock
+                            FROM apc A
+                            LEFT JOIN inventory I ON I.apdb_id = A.idx
+                            WHERE A.apc IN ({placeholders})
+                            GROUP BY A.apc, A.llm_pharm
+                        """))
+                        pg_map = {row.apc: {'category': row.category, 'ws': int(row.wholesaler_stock)} for row in result}
+                        
+                        for item in items:
+                            if item['apc'] and item['apc'] in pg_map:
+                                item['category'] = pg_map[item['apc']]['category']
+                                item['wholesaler_stock'] = pg_map[item['apc']]['ws']
+            except Exception as pg_err:
+                logging.warning(f"PostgreSQL 분류 조회 실패 (무시): {pg_err}")
+                # PostgreSQL 실패해도 MSSQL 데이터는 정상 반환
+        
         return jsonify({
             'success': True,
             'items': items,
diff --git a/backend/templates/admin_products.html b/backend/templates/admin_products.html
index 654ccae..14e6a20 100644
--- a/backend/templates/admin_products.html
+++ b/backend/templates/admin_products.html
@@ -725,12 +725,23 @@
             return;
         }
 
-        tbody.innerHTML = productsData.map((item, idx) => `
+        tbody.innerHTML = productsData.map((item, idx) => {
+            // 분류 뱃지 (동물약만)
+            const categoryBadge = item.category 
+                ? `<span style="display:inline-block;background:#8b5cf6;color:#fff;font-size:10px;padding:2px 5px;border-radius:3px;margin-left:4px;">${escapeHtml(item.category)}</span>` 
+                : '';
+            // 도매상 재고 표시 (동물약만)
+            const wsStock = (item.wholesaler_stock && item.wholesaler_stock > 0) 
+                ? `<span style="color:#3b82f6;font-size:11px;margin-left:4px;">(도매 ${item.wholesaler_stock})</span>` 
+                : '';
+            
+            return `
             <tr>
                 <td>
                     <div class="product-name">
                         ${escapeHtml(item.product_name)}
                         ${item.is_animal_drug ? '<span style="display:inline-block;background:#10b981;color:#fff;font-size:11px;padding:2px 6px;border-radius:4px;margin-left:6px;">🐾 동물약</span>' : ''}
+                        ${categoryBadge}
                     </div>
                     <div class="product-supplier ${item.is_set ? 'set' : ''}">${escapeHtml(item.supplier) || ''}</div>
                 </td>
@@ -738,13 +749,13 @@
                 <td>${item.barcode 
                     ? `<span class="code code-barcode">${item.barcode}</span>` 
                     : `<span class="code code-na">없음</span>`}</td>
-                <td class="stock ${(item.stock || 0) > 0 ? 'in-stock' : 'out-stock'}">${item.stock || 0}</td>
+                <td class="stock ${(item.stock || 0) > 0 ? 'in-stock' : 'out-stock'}">${item.stock || 0}${wsStock}</td>
                 <td class="price">${formatPrice(item.sale_price)}</td>
                 <td>
                     <button class="btn-qr" onclick="printQR(${idx})">🏷️ QR</button>
                 </td>
             </tr>
-        `).join('');
+        `}).join('');
     }
 
     // ── QR 인쇄 관련 ──