diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
index 303081d..550de37 100644
--- a/ARCHITECTURE.md
+++ b/ARCHITECTURE.md
@@ -314,7 +314,8 @@ create table google_oauth_tokens (            -- single-row pour Arthur
 -- ============================================================
 create table daily_checkins (
   day date primary key,
-  meds_taken boolean default false,
+  meds_morning boolean default false, -- prise du matin
+  meds_evening boolean default false, -- prise du soir
   note text,
   updated_at timestamptz default now()
 );
@@ -395,8 +396,8 @@ POST   /agenda/google/sync
 GET    /agenda/ical/:secret.ics             → text/calendar
 
 # HEALTH
-GET    /health-tab/today                    { day, meds_taken, note }
-POST   /health-tab/today/toggle             → flips meds_taken, returns row
+GET    /health-tab/today                    { day, meds_morning, meds_evening, note }
+POST   /health-tab/today/toggle             { slot?: 'morning'|'evening', value?: bool, note? } → row mise à jour
 GET    /health-tab/history?days=30
 
 # AI
@@ -420,7 +421,7 @@ type ProposedAction =
   | { fn: 'add_project_idea', args: { project_id, content } }
   | { fn: 'add_project_step', args: { project_id, title, status? } }
   | { fn: 'create_calendar_event', args: { title, starts_at, ends_at, location?, description? } }
-  | { fn: 'toggle_daily_checkin', args: { note? } };
+  | { fn: 'toggle_daily_checkin', args: { slot?: 'morning'|'evening'|'both', note? } };
 ```
 
 Flow garanti : l'API **ne jamais** exécute une action directement. Elle renvoie un `ProposedAction[]` à la PWA, qui affiche une modal de confirmation. Seul `/ai/command/confirm` écrit en DB.
diff --git a/apps/api/src/modules/ai/ai.service.ts b/apps/api/src/modules/ai/ai.service.ts
index a0d38e7..b39293d 100644
--- a/apps/api/src/modules/ai/ai.service.ts
+++ b/apps/api/src/modules/ai/ai.service.ts
@@ -231,20 +231,50 @@ export class AiService {
 
       case "toggle_daily_checkin": {
         const today = new Date().toLocaleDateString("fr-CA", { timeZone: "Europe/Paris" });
+        const slot = action.args.slot ?? "both";
+
+        // INSERT : on part de false/false puis on coche le(s) slot(s) concerné(s).
+        const insertMorning = slot === "morning" || slot === "both";
+        const insertEvening = slot === "evening" || slot === "both";
+
+        // UPDATE on conflict :
+        //  - slot "both" → force les 2 à true (sémantique "j'ai tout pris")
+        //  - slot spécifique → flip uniquement ce slot
+        const updateSet =
+          slot === "both"
+            ? {
+                medsMorning: sql`true`,
+                medsEvening: sql`true`,
+                note: action.args.note ?? null,
+                updatedAt: sql`now()`,
+              }
+            : slot === "morning"
+              ? {
+                  medsMorning: sql`NOT ${dailyCheckins.medsMorning}`,
+                  note: action.args.note ?? null,
+                  updatedAt: sql`now()`,
+                }
+              : {
+                  medsEvening: sql`NOT ${dailyCheckins.medsEvening}`,
+                  note: action.args.note ?? null,
+                  updatedAt: sql`now()`,
+                };
+
         const [row] = await this.db
           .insert(dailyCheckins)
-          .values({ day: today, medsTaken: true, note: action.args.note ?? null })
+          .values({
+            day: today,
+            medsMorning: insertMorning,
+            medsEvening: insertEvening,
+            note: action.args.note ?? null,
+          })
           .onConflictDoUpdate({
             target: dailyCheckins.day,
-            set: {
-              medsTaken: sql`NOT ${dailyCheckins.medsTaken}`,
-              note: action.args.note ?? null,
-              updatedAt: sql`now()`,
-            },
+            set: updateSet,
           })
           .returning();
         if (!row) throw new Error("Upsert daily_checkin: aucune ligne renvoyée");
-        return { day: row.day, meds_taken: row.medsTaken };
+        return { day: row.day, meds_morning: row.medsMorning, meds_evening: row.medsEvening };
       }
     }
   }
diff --git a/apps/api/src/modules/ai/mistral.client.ts b/apps/api/src/modules/ai/mistral.client.ts
index c9ce5c8..fe1209d 100644
--- a/apps/api/src/modules/ai/mistral.client.ts
+++ b/apps/api/src/modules/ai/mistral.client.ts
@@ -95,10 +95,16 @@ export const MISTRAL_TOOLS = [
     function: {
       name: "toggle_daily_checkin",
       description:
-        "Marque le check-in quotidien d'Arthur (médocs pris, état du jour). À utiliser sur 'j'ai pris mes médocs', 'check in'.",
+        "Marque le check-in quotidien d'Arthur (médocs pris matin/soir, état du jour). Arthur doit prendre ses médicaments une fois le matin et une fois le soir — précise `slot` si c'est spécifiquement la prise du matin ou celle du soir.",
       parameters: {
         type: "object",
         properties: {
+          slot: {
+            type: "string",
+            enum: ["morning", "evening", "both"],
+            description:
+              "Quelle prise valider. 'morning' = médocs du matin, 'evening' = médocs du soir, 'both' = les deux (si ambigu / formulation globale). Défaut : 'both'.",
+          },
           note: { type: "string" },
         },
       },
@@ -174,7 +180,7 @@ const SYSTEM_PROMPT = `Tu es l'assistant personnel d'Arthur dans ordinarthur-os.
 ## Autres règles
 
 - Formulations déclaratives d'agenda : "j'ai rendez-vous", "je dois aller", "j'ai un rdv", "dans mon agenda" → create_calendar_event.
-- "j'ai pris mes médocs", "médicaments pris" → toggle_daily_checkin.
+- "j'ai pris mes médocs", "médicaments pris" → toggle_daily_checkin. Arthur prend ses médocs matin + soir : si la phrase précise le moment ("du matin", "ce matin", "du soir", "ce soir"), pose slot en conséquence ('morning' ou 'evening') ; sinon laisse 'both'.
 - Pour create_calendar_event : si la durée n'est pas précisée, suppose 1h.
 - Dates : convertis les expressions relatives ('demain', 'vendredi soir', 'dans 2h') en ISO 8601 avec l'offset Europe/Paris (+02:00 en été, +01:00 en hiver). Ex : "2024-04-16T17:40:00+02:00". Ne jamais utiliser UTC si l'utilisateur parle d'une heure locale.`;
 
diff --git a/apps/api/src/modules/health-tab/health-tab.service.ts b/apps/api/src/modules/health-tab/health-tab.service.ts
index 24c4fdd..514ca81 100644
--- a/apps/api/src/modules/health-tab/health-tab.service.ts
+++ b/apps/api/src/modules/health-tab/health-tab.service.ts
@@ -33,14 +33,17 @@ export class HealthTabService {
     // tant qu'Arthur ne coche rien.
     return {
       day,
-      meds_taken: false,
+      meds_morning: false,
+      meds_evening: false,
       note: null,
       updated_at: new Date().toISOString(),
     };
   }
 
   /**
-   * Upsert sur la ligne du jour. Sans `meds_taken` explicite, flip la valeur.
+   * Upsert sur la ligne du jour.
+   * - Avec `slot` : flip (ou set à `value`) uniquement cette prise.
+   * - Sans `slot` : met à jour uniquement la note (rétro-compat / future extension).
    */
   async toggle(patch: DailyCheckinToggleRequest): Promise<DailyCheckin> {
     const day = todayInParis();
@@ -49,19 +52,37 @@ export class HealthTabService {
       .from(dailyCheckins)
       .where(eq(dailyCheckins.day, day));
 
-    const currentMeds = existing[0]?.medsTaken ?? false;
+    const currentMorning = existing[0]?.medsMorning ?? false;
+    const currentEvening = existing[0]?.medsEvening ?? false;
     const currentNote = existing[0]?.note ?? null;
 
-    const nextMeds = patch.meds_taken ?? !currentMeds;
+    let nextMorning = currentMorning;
+    let nextEvening = currentEvening;
+    if (patch.slot === "morning") {
+      nextMorning = patch.value ?? !currentMorning;
+    } else if (patch.slot === "evening") {
+      nextEvening = patch.value ?? !currentEvening;
+    }
     const nextNote = patch.note !== undefined ? patch.note : currentNote;
     const now = new Date();
 
     const [row] = await this.db
       .insert(dailyCheckins)
-      .values({ day, medsTaken: nextMeds, note: nextNote, updatedAt: now })
+      .values({
+        day,
+        medsMorning: nextMorning,
+        medsEvening: nextEvening,
+        note: nextNote,
+        updatedAt: now,
+      })
       .onConflictDoUpdate({
         target: dailyCheckins.day,
-        set: { medsTaken: nextMeds, note: nextNote, updatedAt: now },
+        set: {
+          medsMorning: nextMorning,
+          medsEvening: nextEvening,
+          note: nextNote,
+          updatedAt: now,
+        },
       })
       .returning();
 
@@ -73,7 +94,8 @@ export class HealthTabService {
 function rowToCheckin(row: typeof dailyCheckins.$inferSelect): DailyCheckin {
   return {
     day: row.day,
-    meds_taken: row.medsTaken,
+    meds_morning: row.medsMorning,
+    meds_evening: row.medsEvening,
     note: row.note ?? null,
     updated_at: row.updatedAt.toISOString(),
   };
diff --git a/apps/pwa/src/components/ai/VoiceConfirmModal.tsx b/apps/pwa/src/components/ai/VoiceConfirmModal.tsx
index fe4f8df..43ec352 100644
--- a/apps/pwa/src/components/ai/VoiceConfirmModal.tsx
+++ b/apps/pwa/src/components/ai/VoiceConfirmModal.tsx
@@ -280,8 +280,14 @@ function summarize(action: ProposedAction): string {
       return `${action.args.title}${action.args.status ? ` · ${action.args.status}` : ""}`;
     case "create_calendar_event":
       return `${action.args.title} · ${formatDatetime(action.args.starts_at)} → ${formatTime(action.args.ends_at)}`;
-    case "toggle_daily_checkin":
-      return action.args.note ?? "Check-in du jour";
+    case "toggle_daily_checkin": {
+      const slot = action.args.slot ?? "both";
+      const slotLabel =
+        slot === "morning" ? "médocs matin"
+        : slot === "evening" ? "médocs soir"
+        : "médocs (matin + soir)";
+      return action.args.note ? `${slotLabel} · ${action.args.note}` : slotLabel;
+    }
     case "capture_idea":
       return action.args.content;
   }
diff --git a/apps/pwa/src/components/health/MedsSection.tsx b/apps/pwa/src/components/health/MedsSection.tsx
index dd73581..1d91f10 100644
--- a/apps/pwa/src/components/health/MedsSection.tsx
+++ b/apps/pwa/src/components/health/MedsSection.tsx
@@ -1,5 +1,5 @@
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
-import type { DailyCheckin } from "@ordinarthur-os/shared";
+import type { DailyCheckin, MedsSlot } from "@ordinarthur-os/shared";
 import { api } from "@/api/client";
 import { Label } from "@/design";
 import { MedsSlider } from "./MedsSlider";
@@ -13,27 +13,60 @@ export function MedsSection() {
   });
 
   const toggle = useMutation({
-    mutationFn: () =>
-      api<DailyCheckin>("/health-tab/today/toggle", { method: "POST", body: "{}" }),
+    mutationFn: (slot: MedsSlot) =>
+      api<DailyCheckin>("/health-tab/today/toggle", {
+        method: "POST",
+        body: JSON.stringify({ slot }),
+      }),
     onSuccess: (updated) => qc.setQueryData(["health-tab", "today"], updated),
   });
 
-  const medsTaken = data?.meds_taken ?? false;
+  const morningTaken = data?.meds_morning ?? false;
+  const eveningTaken = data?.meds_evening ?? false;
+  const bothTaken = morningTaken && eveningTaken;
+  const pendingSlot = toggle.isPending ? toggle.variables : null;
+
+  const statusText = isLoading
+    ? "…"
+    : bothTaken
+      ? "Matin + soir pris"
+      : morningTaken
+        ? "Matin pris · soir en attente"
+        : eveningTaken
+          ? "Soir pris · matin en attente"
+          : "Non pris";
 
   return (
     <section className="border border-ink">
       <div className="flex items-center justify-between px-4 py-3 border-b border-ink">
         <Label prefix="[ 02 ]">MÉDOCS DU JOUR</Label>
-        <span className={`font-mono text-[11px] uppercase tracking-label ${medsTaken ? "text-accent" : "text-muted"}`}>
-          {isLoading ? "…" : medsTaken ? "Pris" : "Non pris"}
+        <span
+          className={`font-mono text-[11px] uppercase tracking-label ${bothTaken ? "text-accent" : "text-muted"}`}
+        >
+          {statusText}
         </span>
       </div>
 
-      <MedsSlider
-        medsTaken={medsTaken}
-        onToggle={() => toggle.mutate()}
-        disabled={toggle.isPending || isLoading}
-      />
+      <div className="divide-y divide-ink">
+        <div className="px-4 py-3 space-y-2">
+          <Label className="block">MATIN</Label>
+          <MedsSlider
+            medsTaken={morningTaken}
+            onToggle={() => toggle.mutate("morning")}
+            disabled={(toggle.isPending && pendingSlot === "morning") || isLoading}
+            slotLabel="matin"
+          />
+        </div>
+        <div className="px-4 py-3 space-y-2">
+          <Label className="block">SOIR</Label>
+          <MedsSlider
+            medsTaken={eveningTaken}
+            onToggle={() => toggle.mutate("evening")}
+            disabled={(toggle.isPending && pendingSlot === "evening") || isLoading}
+            slotLabel="soir"
+          />
+        </div>
+      </div>
     </section>
   );
 }
diff --git a/apps/pwa/src/components/health/MedsSlider.tsx b/apps/pwa/src/components/health/MedsSlider.tsx
index fef2654..89d93ad 100644
--- a/apps/pwa/src/components/health/MedsSlider.tsx
+++ b/apps/pwa/src/components/health/MedsSlider.tsx
@@ -6,9 +6,10 @@ interface Props {
   medsTaken: boolean;
   onToggle: () => void;
   disabled?: boolean;
+  slotLabel?: string; // ex: "matin" / "soir" — utilisé dans les textes du slider
 }
 
-export function MedsSlider({ medsTaken, onToggle, disabled = false }: Props) {
+export function MedsSlider({ medsTaken, onToggle, disabled = false, slotLabel }: Props) {
   const trackRef = useRef<HTMLDivElement>(null);
   const [dragX, setDragX] = useState(0);
   const dragging = useRef(false);
@@ -68,7 +69,7 @@ export function MedsSlider({ medsTaken, onToggle, disabled = false }: Props) {
             className="font-mono text-[11px] uppercase tracking-label text-ink"
             style={{ opacity: Math.max(0, 1 - progress * 2.5) }}
           >
-            Glisse → médicaments pris
+            Glisse → médocs {slotLabel ?? "pris"}
           </span>
         )}
         {!medsTaken && progress > 0.3 && (
@@ -81,7 +82,7 @@ export function MedsSlider({ medsTaken, onToggle, disabled = false }: Props) {
         )}
         {medsTaken && (
           <span className="font-mono text-[11px] uppercase tracking-label text-bg">
-            ✓ Médicaments pris — tap pour annuler
+            ✓ Médocs {slotLabel ?? ""} pris — tap pour annuler
           </span>
         )}
       </div>
diff --git a/packages/db/migrations/0008_meds_morning_evening.sql b/packages/db/migrations/0008_meds_morning_evening.sql
new file mode 100644
index 0000000..c632557
--- /dev/null
+++ b/packages/db/migrations/0008_meds_morning_evening.sql
@@ -0,0 +1,15 @@
+-- 0008_meds_morning_evening.sql — split meds_taken en matin / soir
+set search_path to ordinarthur_os, public;
+
+alter table ordinarthur_os.daily_checkins
+  add column if not exists meds_morning boolean not null default false,
+  add column if not exists meds_evening boolean not null default false;
+
+-- Migrer l'ancien meds_taken : s'il était true on coche les 2 prises,
+-- sinon on reste par défaut à false/false.
+update ordinarthur_os.daily_checkins
+set meds_morning = true, meds_evening = true
+where meds_taken = true;
+
+alter table ordinarthur_os.daily_checkins
+  drop column if exists meds_taken;
diff --git a/packages/db/src/schema/daily_checkins.ts b/packages/db/src/schema/daily_checkins.ts
index b951e68..1eea999 100644
--- a/packages/db/src/schema/daily_checkins.ts
+++ b/packages/db/src/schema/daily_checkins.ts
@@ -3,7 +3,8 @@ import { appSchema } from "./_schema";
 
 export const dailyCheckins = appSchema.table("daily_checkins", {
   day: date("day").primaryKey(),
-  medsTaken: boolean("meds_taken").notNull().default(false),
+  medsMorning: boolean("meds_morning").notNull().default(false),
+  medsEvening: boolean("meds_evening").notNull().default(false),
   note: text("note"),
   updatedAt: timestamp("updated_at", { withTimezone: true }).notNull().defaultNow(),
 });
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index a54fe5e..78cda14 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -328,6 +328,7 @@ export const ProposedAction = z.discriminatedUnion("fn", [
   z.object({
     fn: z.literal("toggle_daily_checkin"),
     args: z.object({
+      slot: z.enum(["morning", "evening", "both"]).optional(),
       note: z.string().optional(),
     }),
   }),
@@ -437,16 +438,21 @@ export type GoogleSyncResponse = z.infer<typeof GoogleSyncResponse>;
 // Phase 7 — Daily check-in (médocs + note)
 // ---------------------------------------------------------------------------
 
+export const MedsSlot = z.enum(["morning", "evening"]);
+export type MedsSlot = z.infer<typeof MedsSlot>;
+
 export const DailyCheckin = z.object({
   day: z.string(), // YYYY-MM-DD
-  meds_taken: z.boolean(),
+  meds_morning: z.boolean(),
+  meds_evening: z.boolean(),
   note: z.string().nullable(),
   updated_at: z.string(),
 });
 export type DailyCheckin = z.infer<typeof DailyCheckin>;
 
 export const DailyCheckinToggleRequest = z.object({
-  meds_taken: z.boolean().optional(),
+  slot: MedsSlot.optional(), // si absent : bascule les deux slots (note-only)
+  value: z.boolean().optional(), // si absent : flip la valeur actuelle du slot
   note: z.string().nullable().optional(),
 });
 export type DailyCheckinToggleRequest = z.infer<typeof DailyCheckinToggleRequest>;