diff --git a/docs/SymptomsCausedByDrugs/js/PdfCreator.js b/docs/SymptomsCausedByDrugs/js/PdfCreator.js
index 5986d69fcea..6b775e5aaba 100644
--- a/docs/SymptomsCausedByDrugs/js/PdfCreator.js
+++ b/docs/SymptomsCausedByDrugs/js/PdfCreator.js
@@ -27,14 +27,14 @@ class PdfCreator {
     static #getWorstDrugsSection({ selectElement, table }, valueName) {
         return [
             PdfCreator.#getHeading(`Worst ${valueName} for "${PdfCreator.#getSelection(selectElement)}"`),
-            PdfCreator.#getTable(table)
+            PdfCreator.#getTable(table, true)
         ];
     }
 
     static #getStrongestSymptomsSection({ selectElement, table }) {
         return [
             PdfCreator.#getHeading(`Strongest Symptoms for "${PdfCreator.#getSelection(selectElement)}"`),
-            PdfCreator.#getTable(table)
+            PdfCreator.#getTable(table, false)
         ];
     }
 
@@ -52,17 +52,14 @@ class PdfCreator {
         return selectElement.select2('data')[0].text;
     }
 
-    // FK-TODO: add red background to some rows
-    static #getTable(table) {
-        const headers = PdfCreator.#getTableHeaders(table);
-        const rows = table.rows({ search: 'applied' }).data().toArray();
+    static #getTable(table, shallMarkRowsIfPrrTooHigh) {
         return {
             layout: 'lightHorizontalLines',
             table: {
                 headerRows: 1,
                 body: [
-                    headers,
-                    ...rows
+                    PdfCreator.#getTableHeaders(table),
+                    ...PdfCreator.#getMarkedRows(table, shallMarkRowsIfPrrTooHigh)
                 ]
             }
         };
@@ -78,4 +75,42 @@ class PdfCreator {
             }))
             .toArray();
     }
+
+    static #getMarkedRows(table, shallMarkRowsIfPrrTooHigh) {
+        const rows = PdfCreator.#getRows(table);
+        return shallMarkRowsIfPrrTooHigh ?
+            PdfCreator.#markRowsIfPrrTooHigh(rows) :
+            rows;
+    }
+
+    static #getRows(table) {
+        return table
+            .rows({ search: 'applied' })
+            .data()
+            .toArray();
+    }
+
+    static #markRowsIfPrrTooHigh(rows) {
+        return rows.map(PdfCreator.#markRowIfPrrTooHigh);
+    }
+
+    static #markRowIfPrrTooHigh(row) {
+        const prr = row[1];
+        return [
+            PdfCreator.#markValueIfPrrTooHigh({ value: row[0], prr: prr }),
+            PdfCreator.#markValueIfPrrTooHigh({ value: row[1], prr: prr })
+        ];
+    }
+
+    static #markValueIfPrrTooHigh({ value, prr }) {
+        return prr >= 2.0 ? PdfCreator.#markValue(value) : value;
+    }
+
+    static #markValue(value) {
+        return {
+            text: value,
+            fillColor: '#FF0000',
+            fillOpacity: 0.1,
+        };
+    }
 }
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