diff --git a/backend/innercontext/models/health.py b/backend/innercontext/models/health.py
index 2aac33d..419fb11 100644
--- a/backend/innercontext/models/health.py
+++ b/backend/innercontext/models/health.py
@@ -36,7 +36,10 @@ class MedicationEntry(SQLModel, table=True):
         ),
     )
 
-    usage_history: list["MedicationUsage"] = Relationship(back_populates="medication")
+    usage_history: list["MedicationUsage"] = Relationship(
+        back_populates="medication",
+        sa_relationship_kwargs={"cascade": "all, delete-orphan"},
+    )
 
 
 class MedicationUsage(SQLModel, table=True):
diff --git a/backend/innercontext/models/routine.py b/backend/innercontext/models/routine.py
index d44a20a..cdd5796 100644
--- a/backend/innercontext/models/routine.py
+++ b/backend/innercontext/models/routine.py
@@ -38,7 +38,10 @@ class Routine(SQLModel, table=True):
         ),
     )
 
-    steps: List["RoutineStep"] = Relationship(back_populates="routine")
+    steps: List["RoutineStep"] = Relationship(
+        back_populates="routine",
+        sa_relationship_kwargs={"cascade": "all, delete-orphan"},
+    )
 
 
 class GroomingSchedule(SQLModel, table=True):