diff --git a/src/tools/checklists/intoxicaciones/IntoxicacionesChecklist.tsx b/src/tools/checklists/intoxicaciones/IntoxicacionesChecklist.tsx
index 38926bc3..47ba844e 100644
--- a/src/tools/checklists/intoxicaciones/IntoxicacionesChecklist.tsx
+++ b/src/tools/checklists/intoxicaciones/IntoxicacionesChecklist.tsx
@@ -1,7 +1,10 @@
 import { useEffect, useState } from 'react';
+import { usePatient } from '@/clinical/patient';
 import { Button } from '@/components/ui/button';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Checkbox } from '@/components/ui/checkbox';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
 import { formatDuration, getElapsedSeconds } from '../sepsis/timers';
 import { intoxicacionesChecklistSteps } from './intoxicacionesChecklist.model';
 
@@ -10,11 +13,13 @@ const STORAGE_KEY = 'checklist_intoxicaciones_v1';
 interface IntoxicacionesChecklistState {
   startedAt: number | null;
   completed: Record<string, boolean>;
+  manualWeightKg?: number;
 }
 
 const initialState: IntoxicacionesChecklistState = {
   startedAt: null,
   completed: {},
+  manualWeightKg: undefined,
 };
 
 const loadState = (): IntoxicacionesChecklistState => {
@@ -39,6 +44,7 @@ const saveState = (state: IntoxicacionesChecklistState) => {
 };
 
 const IntoxicacionesChecklist = () => {
+  const { state: patientState } = usePatient();
   const [checklistState, setChecklistState] = useState<IntoxicacionesChecklistState>(initialState);
   const [nowTick, setNowTick] = useState(Date.now());
 
@@ -56,6 +62,8 @@ const IntoxicacionesChecklist = () => {
   }, []);
 
   const elapsedSeconds = getElapsedSeconds(checklistState.startedAt);
+  const weightKg = patientState.patient.weight ?? checklistState.manualWeightKg;
+  const naloxoneDoseMg = weightKg ? Math.min(0.1 * weightKg, 2) : null;
 
   const toggleStep = (id: string, value: boolean) => {
     setChecklistState((prev) => ({
@@ -73,6 +81,14 @@ const IntoxicacionesChecklist = () => {
     setChecklistState(initialState);
   };
 
+  const handleManualWeight = (value: string) => {
+    const parsed = Number(value);
+    setChecklistState((prev) => ({
+      ...prev,
+      manualWeightKg: Number.isFinite(parsed) ? parsed : undefined,
+    }));
+  };
+
   return (
     <div className="space-y-6">
       <header className="space-y-2">
@@ -104,6 +120,30 @@ const IntoxicacionesChecklist = () => {
         </CardContent>
       </Card>
 
+      <Card>
+        <CardHeader>
+          <CardTitle className="text-base">Naloxona (orientativo)</CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-3">
+          <div className="rounded-md border border-border/60 bg-muted/30 p-3 space-y-2">
+            <Label>Peso (kg)</Label>
+            <Input
+              type="number"
+              inputMode="numeric"
+              value={weightKg ?? ''}
+              onChange={(event) => handleManualWeight(event.target.value)}
+              placeholder="Ej: 15"
+            />
+            <div className="text-sm text-muted-foreground space-y-1">
+              <p>Adulto: dosis inicial 0.4 mg IV/IM/IN, titular según respuesta.</p>
+              {naloxoneDoseMg
+                ? <p>Pediatría: {naloxoneDoseMg.toFixed(2)} mg (0.1 mg/kg, máx 2 mg).</p>
+                : <p>Pediatría: introduce peso para calcular 0.1 mg/kg (máx 2 mg).</p>}
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+
       {intoxicacionesChecklistSteps.map((step) => (
         <Card key={step.id}>
           <CardHeader className="flex flex-row items-center justify-between space-y-0">
diff --git a/src/tools/checklists/parto/PartoChecklist.tsx b/src/tools/checklists/parto/PartoChecklist.tsx
index 48607450..cd0754d3 100644
--- a/src/tools/checklists/parto/PartoChecklist.tsx
+++ b/src/tools/checklists/parto/PartoChecklist.tsx
@@ -104,6 +104,19 @@ const PartoChecklist = () => {
         </CardContent>
       </Card>
 
+      <Card>
+        <CardHeader>
+          <CardTitle className="text-base">Peso RN orientativo</CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-2 text-sm text-muted-foreground">
+          <p>Referencia rápida si no se conoce el peso:</p>
+          <p>• &lt;34 semanas: ~1.5–2.0 kg</p>
+          <p>• 34–36 semanas: ~2.0–2.5 kg</p>
+          <p>• ≥37 semanas (a término): ~3.0–3.5 kg</p>
+          <p>Si no hay datos, asumir 3.2 kg para cálculos iniciales y ajustar según clínica.</p>
+        </CardContent>
+      </Card>
+
       {partoChecklistSteps.map((step) => (
         <Card key={step.id}>
           <CardHeader className="flex flex-row items-center justify-between space-y-0">