diff --git a/frontend-mobile/types/index.ts b/frontend-mobile/types/index.ts
new file mode 100644
index 0000000..9a119e7
--- /dev/null
+++ b/frontend-mobile/types/index.ts
@@ -0,0 +1,51 @@
+export interface Medicine {
+  nregistro: string;
+  nombre: string;
+  principioActivo: string;
+  laboratorio: string;
+  formaFarmaceutica: string;
+  precio: number | null;
+  stock: number;
+  disponibilidad: 'disponible' | 'sin_stock' | 'bajo_stock';
+}
+
+export interface Pharmacy {
+  id: number;
+  name: string;
+  address: string;
+  phone: string;
+  latitude: number;
+  longitude: number;
+}
+
+export interface PharmacyMedicine {
+  id: number;
+  pharmacy_id: number;
+  medicine_nregistro: string;
+  medicine_name: string;
+  price: number;
+  stock: number;
+  pharmacy?: Pharmacy;
+}
+
+export interface User {
+  id: number;
+  username: string;
+  is_admin: boolean;
+}
+
+export interface AuthResponse {
+  user: User;
+  token: string;
+}
+
+export interface SearchResponse {
+  medicines: Medicine[];
+  total: number;
+}
+
+export interface ApiResponse<T> {
+  data: T;
+  success: boolean;
+  error?: string;
+}
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