diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index f48efd348..449bb3d13 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -61229,9 +61229,26 @@ components:
             additionalProperties: false
           description: "Newest first, capped at `limit`. A heterogeneous union: which optional keys are present depends on `kind`,
             and no entry carries all of them."
+        medications:
+          type: array
+          items:
+            type: object
+            properties:
+              id:
+                type: string
+              name:
+                type: string
+            required:
+              - id
+              - name
+            additionalProperties: false
+          description: "Every medication classified GLP-1 in the record, whatever `limit` cut from `entries`. Read this, not the
+            entry names, to know which medications are GLP-1: a medication whose events are all older than the newest
+            `limit` entries has none in `entries`. Empty when `hasGlp1` is false."
       required:
         - hasGlp1
         - entries
+        - medications
       additionalProperties: false
       description: "A chronological merge of the GLP-1-relevant events the record holds: titration steps, injections with
         their sites, legacy stock-ledger movements, and side-effect-tagged mood days from the trailing 90 days.
diff --git a/messages/de.json b/messages/de.json
index e7a8a1dd0..ba509f4b9 100644
--- a/messages/de.json
+++ b/messages/de.json
@@ -1386,6 +1386,7 @@
       "emptyState": "Noch keine Nebenwirkungen erfasst. Tracking hilft dir und deiner Ärztin, Muster über die Zeit zu erkennen.",
       "recentTitle": "Letzte 30 Tage",
       "loading": "Wird geladen…",
+      "loadMore": "Weitere laden",
       "deleteCta": "Löschen",
       "deleteError": "Eintrag konnte nicht gelöscht werden",
       "errorSeverity": "Schweregrad muss zwischen 1 und 5 liegen",
diff --git a/messages/en.json b/messages/en.json
index 11a517a80..7577e51fb 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -1386,6 +1386,7 @@
       "emptyState": "No side effects logged yet. Tracking can help your doctor and surface patterns over time.",
       "recentTitle": "Last 30 days",
       "loading": "Loading…",
+      "loadMore": "Load more",
       "deleteCta": "Delete",
       "deleteError": "Could not delete the entry",
       "errorSeverity": "Severity must be between 1 and 5",
diff --git a/messages/es.json b/messages/es.json
index 43c808b32..aaa14812a 100644
--- a/messages/es.json
+++ b/messages/es.json
@@ -1386,6 +1386,7 @@
       "emptyState": "Aún no hay efectos secundarios registrados. Hacer seguimiento puede ayudar a tu médico y revelar patrones a lo largo del tiempo.",
       "recentTitle": "Últimos 30 días",
       "loading": "Cargando…",
+      "loadMore": "Cargar más",
       "deleteCta": "Eliminar",
       "deleteError": "No se pudo eliminar la entrada",
       "errorSeverity": "La gravedad debe estar entre 1 y 5",
diff --git a/messages/fr.json b/messages/fr.json
index 3f3de9ecd..24d926b6c 100644
--- a/messages/fr.json
+++ b/messages/fr.json
@@ -1386,6 +1386,7 @@
       "emptyState": "Aucun effet secondaire consigné. Le suivi peut aider votre médecin et révéler des tendances dans le temps.",
       "recentTitle": "30 derniers jours",
       "loading": "Chargement…",
+      "loadMore": "Charger plus",
       "deleteCta": "Supprimer",
       "deleteError": "Impossible de supprimer l'entrée",
       "errorSeverity": "La sévérité doit être entre 1 et 5",
diff --git a/messages/it.json b/messages/it.json
index 4853184ed..71f3977a7 100644
--- a/messages/it.json
+++ b/messages/it.json
@@ -1386,6 +1386,7 @@
       "emptyState": "Nessun effetto collaterale registrato. Tracciarli può aiutare il medico e far emergere schemi nel tempo.",
       "recentTitle": "Ultimi 30 giorni",
       "loading": "Caricamento…",
+      "loadMore": "Carica altri",
       "deleteCta": "Elimina",
       "deleteError": "Impossibile eliminare la voce",
       "errorSeverity": "La gravità deve essere tra 1 e 5",
diff --git a/messages/ko.json b/messages/ko.json
index 122c25d92..04eb45df2 100644
--- a/messages/ko.json
+++ b/messages/ko.json
@@ -1386,6 +1386,7 @@
       "emptyState": "아직 기록한 부작용이 없어요. 기록해 두면 진료에 도움이 되고 패턴도 드러나요.",
       "recentTitle": "최근 30일",
       "loading": "불러오는 중…",
+      "loadMore": "더 불러오기",
       "deleteCta": "삭제",
       "deleteError": "기록을 삭제하지 못했어요",
       "errorSeverity": "심각도는 1에서 5 사이여야 해요",
diff --git a/messages/pl.json b/messages/pl.json
index 5907e3c21..68e21c4cd 100644
--- a/messages/pl.json
+++ b/messages/pl.json
@@ -1386,6 +1386,7 @@
       "emptyState": "Nie zarejestrowano jeszcze skutków ubocznych. Śledzenie może pomóc lekarzowi i ujawnić wzorce w czasie.",
       "recentTitle": "Ostatnie 30 dni",
       "loading": "Ładowanie…",
+      "loadMore": "Załaduj więcej",
       "deleteCta": "Usuń",
       "deleteError": "Nie udało się usunąć wpisu",
       "errorSeverity": "Nasilenie musi mieścić się w zakresie 1–5",
diff --git a/src/app/api/insights/glp1-timeline/route.ts b/src/app/api/insights/glp1-timeline/route.ts
index 67af7ff9c..2b59c53c9 100644
--- a/src/app/api/insights/glp1-timeline/route.ts
+++ b/src/app/api/insights/glp1-timeline/route.ts
@@ -68,7 +68,7 @@ export const GET = apiHandler(async (request: NextRequest) => {
   });
 
   if (meds.length === 0) {
-    return apiSuccess({ hasGlp1: false, entries: [] });
+    return apiSuccess({ hasGlp1: false, entries: [], medications: [] });
   }
 
   const ninetyDaysAgo = new Date();
@@ -173,5 +173,12 @@ export const GET = apiHandler(async (request: NextRequest) => {
     },
   });
 
-  return apiSuccess({ hasGlp1: true, entries: entries.slice(0, limit) });
+  // `medications` is every GLP-1 medication, independent of `limit`: a
+  // consumer that needs the set (the substance-curve summary) must not
+  // derive it from a capped page of entries.
+  return apiSuccess({
+    hasGlp1: true,
+    entries: entries.slice(0, limit),
+    medications: meds.map((med) => ({ id: med.id, name: med.name })),
+  });
 });
diff --git a/src/components/insights/glp1-substance-curve-summary.tsx b/src/components/insights/glp1-substance-curve-summary.tsx
index 9fc178a08..80c6a7044 100644
--- a/src/components/insights/glp1-substance-curve-summary.tsx
+++ b/src/components/insights/glp1-substance-curve-summary.tsx
@@ -9,9 +9,12 @@
  *
  * Gating: reads `GET /api/insights/glp1-timeline` — the server-authoritative
  * GLP-1 signal. When `hasGlp1` is false the block renders nothing. The set of
- * GLP-1 medication names comes from the timeline's entries (every entry is
- * from a `treatmentClass === "GLP1"` medication), and the passed medication
- * list is filtered to that set so non-GLP-1 medications never render a curve.
+ * GLP-1 medications comes from the response's `medications` list, which the
+ * server fills from every `treatmentClass === "GLP1"` medication independent
+ * of the entry cap, and the passed medication list is filtered to that set so
+ * non-GLP-1 medications never render a curve. (It used to be derived from the
+ * names in a capped page of entries, which dropped a medication whose events
+ * were all older than that page.)
  *
  * The chart carries its own `MedicationDetailSection` card chrome + estimate
  * disclaimer, so it reads as one system with the surrounding Insights cards
@@ -36,7 +39,7 @@ const DrugLevelChart = dynamic(
 
 interface Glp1TimelineResponse {
   hasGlp1: boolean;
-  entries: { medicationName?: string }[];
+  medications: { id: string; name: string }[];
 }
 
 export function Glp1SubstanceCurveSummary({
@@ -45,24 +48,17 @@ export function Glp1SubstanceCurveSummary({
   medications: { id: string; name: string; dose: string }[];
 }) {
   const { data } = useQuery({
-    queryKey: queryKeys.insightsGlp1Timeline(200),
+    // Only `medications` is read, so the smallest page of entries will do.
+    queryKey: queryKeys.insightsGlp1Timeline(1),
     queryFn: () =>
-      apiGet<Glp1TimelineResponse>("/api/insights/glp1-timeline?limit=200"),
+      apiGet<Glp1TimelineResponse>("/api/insights/glp1-timeline?limit=1"),
     staleTime: 60_000,
   });
 
   if (!data?.hasGlp1) return null;
 
-  // Every timeline entry is from a GLP-1 medication (server filters on
-  // `treatmentClass: "GLP1"`). Medication names match the comprehensive
-  // list exactly — both derive from `medication.name` server-side.
-  const glp1Names = new Set(
-    data.entries
-      .map((e) => e.medicationName)
-      .filter((n): n is string => typeof n === "string" && n.length > 0),
-  );
-
-  const glp1Meds = medications.filter((m) => glp1Names.has(m.name));
+  const glp1Ids = new Set(data.medications.map((m) => m.id));
+  const glp1Meds = medications.filter((m) => glp1Ids.has(m.id));
   if (glp1Meds.length === 0) return null;
 
   const showNameLabel = glp1Meds.length > 1;
diff --git a/src/components/medications/__tests__/side-effects-section.test.tsx b/src/components/medications/__tests__/side-effects-section.test.tsx
index 4555b07c6..7737bd290 100644
--- a/src/components/medications/__tests__/side-effects-section.test.tsx
+++ b/src/components/medications/__tests__/side-effects-section.test.tsx
@@ -87,8 +87,14 @@ function seedSideEffects(
   }>,
 ) {
   client.setQueryData(queryKeys.medicationSideEffects(medId), {
-    items: rows,
-    meta: { total: rows.length },
+    pages: [
+      {
+        items: rows,
+        meta: { total: rows.length },
+        from: "2026-01-01T00:00:00.000Z",
+      },
+    ],
+    pageParams: [null],
   });
 }
 
@@ -131,13 +137,24 @@ async function executeSideEffectsQuery(
   medicationId: string,
 ): Promise<void> {
   const queryKey = queryKeys.medicationSideEffects(medicationId);
-  const queryFn = client.getQueryCache().find({ queryKey, exact: true })
-    ?.options.queryFn;
-  if (typeof queryFn !== "function") {
+  const options = client.getQueryCache().find({ queryKey, exact: true })
+    ?.options as
+    | {
+        queryFn?: unknown;
+        initialPageParam?: unknown;
+        getNextPageParam?: unknown;
+      }
+    | undefined;
+  if (typeof options?.queryFn !== "function") {
     throw new Error("Side-effects query function was not registered");
   }
   try {
-    await client.fetchQuery({ queryKey, queryFn });
+    await client.fetchInfiniteQuery({
+      queryKey,
+      queryFn: options.queryFn as never,
+      initialPageParam: options.initialPageParam as never,
+      getNextPageParam: options.getNextPageParam as never,
+    });
   } catch {
     // The settled error is the state under test.
   }
@@ -420,3 +437,88 @@ describe("<SideEffectsSection> — timeline rows", () => {
     expect(html).toContain("Mittel");
   });
 });
+
+describe("<SideEffectsSection> — paging", () => {
+  function sideEffectsResponse(
+    items: Array<{ id: string; occurredAt: string }>,
+  ): Response {
+    return new Response(
+      JSON.stringify({
+        data: {
+          items: items.map((row) => ({
+            ...row,
+            category: "GI",
+            entry: "NAUSEA",
+            severity: 2,
+            notes: null,
+          })),
+          meta: { total: items.length },
+        },
+        error: null,
+      }),
+      { status: 200, headers: { "Content-Type": "application/json" } },
+    );
+  }
+
+  it("offers a next page after a full one and asks for the entries before it", async () => {
+    const base = Date.parse("2026-05-20T12:00:00.000Z");
+    const firstPage = Array.from({ length: 50 }, (_, i) => ({
+      id: `se-${i}`,
+      occurredAt: new Date(base - i * 60_000).toISOString(),
+    }));
+    const oldest = firstPage[firstPage.length - 1];
+    const fetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(sideEffectsResponse(firstPage))
+      // The boundary entry comes back once more and is shown once.
+      .mockResolvedValueOnce(
+        sideEffectsResponse([
+          oldest,
+          { id: "se-older", occurredAt: "2026-05-01T08:00:00.000Z" },
+        ]),
+      );
+    vi.stubGlobal("fetch", fetchMock);
+
+    const client = makeClient();
+    render(<SideEffectsSection medicationId="med-paged" />, client);
+    await executeSideEffectsQuery(client, "med-paged");
+    await waitForQueryStatus(client, "med-paged", "success");
+
+    const firstHtml = render(
+      <SideEffectsSection medicationId="med-paged" />,
+      client,
+    );
+    expect(firstHtml).toContain(en.medications.sideEffects.loadMore);
+
+    await client
+      .getQueryCache()
+      .find({
+        queryKey: queryKeys.medicationSideEffects("med-paged"),
+        exact: true,
+      })
+      ?.fetch(undefined, { meta: { fetchMore: { direction: "forward" } } });
+
+    const secondUrl = new URL(
+      String(fetchMock.mock.calls[1]?.[0]),
+      "http://localhost",
+    );
+    expect(secondUrl.searchParams.get("to")).toBe(
+      new Date(Date.parse(oldest.occurredAt) + 1).toISOString(),
+    );
+    const firstUrl = new URL(
+      String(fetchMock.mock.calls[0]?.[0]),
+      "http://localhost",
+    );
+    expect(secondUrl.searchParams.get("from")).toBe(
+      firstUrl.searchParams.get("from"),
+    );
+
+    const secondHtml = render(
+      <SideEffectsSection medicationId="med-paged" />,
+      client,
+    );
+    // 50 + 1 new, the repeated boundary entry dropped; a short page ends it.
+    expect(secondHtml).toContain("(51)");
+    expect(secondHtml).not.toContain(en.medications.sideEffects.loadMore);
+  });
+});
diff --git a/src/components/medications/side-effects-section.tsx b/src/components/medications/side-effects-section.tsx
index 7df4d2477..140fb8edb 100644
--- a/src/components/medications/side-effects-section.tsx
+++ b/src/components/medications/side-effects-section.tsx
@@ -3,7 +3,11 @@
 import { useRecordCapabilities } from "@/hooks/use-record-capabilities";
 import { useId, useMemo, useState } from "react";
 import { createPortal } from "react-dom";
-import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import {
+  useInfiniteQuery,
+  useMutation,
+  useQueryClient,
+} from "@tanstack/react-query";
 import { toast } from "sonner";
 import { Loader2, Plus, Trash2 } from "lucide-react";
 
@@ -110,6 +114,16 @@ function entryI18nKey(entry: MedicationSideEffectEntry): string {
     .replace(/_([a-z])/g, (_, c: string) => c.toUpperCase());
 }
 
+/** Entries per page of the side-effect list. */
+const SIDE_EFFECTS_PAGE_SIZE = 50;
+
+interface SideEffectPageParam {
+  /** The window start, fixed when the first page loaded. */
+  from: string;
+  /** Exclusive upper bound: just after the oldest entry already shown. */
+  to: string;
+}
+
 export function SideEffectsSection({ medicationId }: SideEffectsSectionProps) {
   const { t } = useTranslations();
   const { canWriteDomain, canManageDomain } = useRecordCapabilities();
@@ -133,18 +147,40 @@ export function SideEffectsSection({ medicationId }: SideEffectsSectionProps) {
 
   const listKey = queryKeys.medicationSideEffects(medicationId);
 
-  const { data, isLoading, isError, refetch } = useQuery({
+  // The last 30 days, newest first, one page at a time. The window is fixed
+  // when the first page loads; each further page asks for the entries before
+  // the oldest one shown (`to` is exclusive, so the boundary instant is
+  // re-asked one millisecond later and the overlap is dropped by id).
+  const {
+    data,
+    isLoading,
+    isError,
+    refetch,
+    fetchNextPage,
+    hasNextPage,
+    isFetchingNextPage,
+  } = useInfiniteQuery({
     queryKey: listKey,
-    queryFn: async () => {
-      // Last 30 days, newest-first.
-      const to = new Date();
-      const from = new Date(to.getTime() - 30 * 24 * 60 * 60 * 1000);
-      const url = `/api/medications/${medicationId}/side-effects?from=${encodeURIComponent(from.toISOString())}&to=${encodeURIComponent(to.toISOString())}&limit=100`;
+    initialPageParam: null as SideEffectPageParam | null,
+    queryFn: async ({ pageParam }) => {
+      const to = pageParam ? new Date(pageParam.to) : new Date();
+      const from = pageParam
+        ? new Date(pageParam.from)
+        : new Date(to.getTime() - 30 * 24 * 60 * 60 * 1000);
+      const url = `/api/medications/${medicationId}/side-effects?from=${encodeURIComponent(from.toISOString())}&to=${encodeURIComponent(to.toISOString())}&limit=${SIDE_EFFECTS_PAGE_SIZE}`;
       const { data: payload } = await apiFetchEnvelope<{
         items: SideEffectRow[];
         meta: { total: number };
       }>(url);
-      return payload;
+      return { ...payload, from: from.toISOString() };
+    },
+    getNextPageParam: (lastPage): SideEffectPageParam | undefined => {
+      if (lastPage.items.length < SIDE_EFFECTS_PAGE_SIZE) return undefined;
+      const oldest = lastPage.items[lastPage.items.length - 1];
+      return {
+        from: lastPage.from,
+        to: new Date(Date.parse(oldest.occurredAt) + 1).toISOString(),
+      };
     },
     staleTime: 30 * 1000,
   });
@@ -184,7 +220,18 @@ export function SideEffectsSection({ medicationId }: SideEffectsSectionProps) {
     },
   });
 
-  const items = data?.items ?? [];
+  const items = useMemo(() => {
+    const seen = new Set<string>();
+    const out: SideEffectRow[] = [];
+    for (const page of data?.pages ?? []) {
+      for (const row of page.items) {
+        if (seen.has(row.id)) continue;
+        seen.add(row.id);
+        out.push(row);
+      }
+    }
+    return out;
+  }, [data]);
 
   const filteredEntries = useMemo(
     () => entriesByCategory(category),
@@ -363,6 +410,20 @@ export function SideEffectsSection({ medicationId }: SideEffectsSectionProps) {
               </li>
             ))}
           </ul>
+          {hasNextPage ? (
+            <div className="flex justify-center">
+              <Button
+                variant="outline"
+                size="sm"
+                disabled={isFetchingNextPage}
+                onClick={() => void fetchNextPage()}
+              >
+                {isFetchingNextPage
+                  ? t("common.loading")
+                  : t("medications.sideEffects.loadMore")}
+              </Button>
+            </div>
+          ) : null}
         </div>
       )}
 
diff --git a/src/lib/openapi/routes/insights/schemas.ts b/src/lib/openapi/routes/insights/schemas.ts
index f13be444c..6f77494fd 100644
--- a/src/lib/openapi/routes/insights/schemas.ts
+++ b/src/lib/openapi/routes/insights/schemas.ts
@@ -2878,6 +2878,11 @@ export const glp1TimelineResponse = z
       .describe(
         "Newest first, capped at `limit`. A heterogeneous union: which optional keys are present depends on `kind`, and no entry carries all of them.",
       ),
+    medications: z
+      .array(z.object({ id: z.string(), name: z.string() }))
+      .describe(
+        "Every medication classified GLP-1 in the record, whatever `limit` cut from `entries`. Read this, not the entry names, to know which medications are GLP-1: a medication whose events are all older than the newest `limit` entries has none in `entries`. Empty when `hasGlp1` is false.",
+      ),
   })
   .meta({
     id: "Glp1TimelineResponse",