diff --git a/app/Controllers/Opd_prescription.php b/app/Controllers/Opd_prescription.php
index 8588f02..e0f4b33 100644
--- a/app/Controllers/Opd_prescription.php
+++ b/app/Controllers/Opd_prescription.php
@@ -3694,6 +3694,13 @@ class Opd_prescription extends BaseController
         $idField = in_array('id', $fields, true) ? 'id' : null;
         $nameField = in_array('item_name', $fields, true) ? 'item_name' : null;
         $formField = in_array('formulation', $fields, true) ? 'formulation' : null;
+        $dosageField = $this->resolveFirstField($fields, ['dosage']);
+        $whenField = $this->resolveFirstField($fields, ['dosage_when']);
+        $freqField = $this->resolveFirstField($fields, ['dosage_freq']);
+        $whereField = $this->resolveFirstField($fields, ['dosage_where']);
+        $daysField = $this->resolveFirstField($fields, ['no_of_days']);
+        $qtyField = $this->resolveFirstField($fields, ['qty']);
+        $remarkField = $this->resolveFirstField($fields, ['remark']);
 
         if ($idField === null || $nameField === null) {
             return $this->response->setJSON(['rows' => []]);
@@ -3703,6 +3710,27 @@ class Opd_prescription extends BaseController
         if ($formField !== null) {
             $select .= ',' . $formField . ' as med_type';
         }
+        if ($dosageField !== null) {
+            $select .= ',' . $dosageField . ' as dosage';
+        }
+        if ($whenField !== null) {
+            $select .= ',' . $whenField . ' as dosage_when';
+        }
+        if ($freqField !== null) {
+            $select .= ',' . $freqField . ' as dosage_freq';
+        }
+        if ($whereField !== null) {
+            $select .= ',' . $whereField . ' as dosage_where';
+        }
+        if ($daysField !== null) {
+            $select .= ',' . $daysField . ' as no_of_days';
+        }
+        if ($qtyField !== null) {
+            $select .= ',' . $qtyField . ' as qty';
+        }
+        if ($remarkField !== null) {
+            $select .= ',' . $remarkField . ' as remark';
+        }
 
         $builder = $this->db->table($table)->select($select);
         if ($q !== '') {
@@ -4056,6 +4084,15 @@ class Opd_prescription extends BaseController
         $this->auditClinicalUpdate('opd_prescription_medicine', 'added', $insertId, null, $insert);
         if ($medId > 0) {
             $this->trackMedicineUsage($medId);
+            $this->syncMedicineMasterDefaults($medId, [
+                'dosage' => $insert['dosage'] ?? '',
+                'dosage_when' => $insert['dosage_when'] ?? '',
+                'dosage_freq' => $insert['dosage_freq'] ?? '',
+                'dosage_where' => $insert['dosage_where'] ?? '',
+                'no_of_days' => $insert['no_of_days'] ?? '',
+                'qty' => $insert['qty'] ?? '',
+                'remark' => $insert['remark'] ?? '',
+            ]);
         }
 
         return $this->response->setJSON([
@@ -4130,6 +4167,58 @@ class Opd_prescription extends BaseController
         ]);
     }
 
+    /**
+     * Persist last-used dosage defaults back to master for quick reuse in consult form.
+     *
+     * @param array<string, mixed> $defaults
+     */
+    private function syncMedicineMasterDefaults(int $medId, array $defaults): void
+    {
+        if ($medId <= 0) {
+            return;
+        }
+
+        $table = $this->findExistingTable(['opd_med_master']);
+        if ($table === null) {
+            return;
+        }
+
+        $fields = $this->db->getFieldNames($table);
+        if (! in_array('id', $fields, true)) {
+            return;
+        }
+
+        $fieldMap = [
+            'dosage' => $this->resolveFirstField($fields, ['dosage']),
+            'dosage_when' => $this->resolveFirstField($fields, ['dosage_when']),
+            'dosage_freq' => $this->resolveFirstField($fields, ['dosage_freq']),
+            'dosage_where' => $this->resolveFirstField($fields, ['dosage_where']),
+            'no_of_days' => $this->resolveFirstField($fields, ['no_of_days']),
+            'qty' => $this->resolveFirstField($fields, ['qty']),
+            'remark' => $this->resolveFirstField($fields, ['remark']),
+        ];
+
+        $update = [];
+        foreach ($fieldMap as $payloadKey => $dbField) {
+            if ($dbField === null) {
+                continue;
+            }
+
+            $value = trim((string) ($defaults[$payloadKey] ?? ''));
+            if ($value === '') {
+                continue;
+            }
+
+            $update[$dbField] = $value;
+        }
+
+        if (empty($update)) {
+            return;
+        }
+
+        $this->db->table($table)->where('id', $medId)->update($update);
+    }
+
     /**
      * @return array<int, bool>
      */
@@ -4260,6 +4349,24 @@ class Opd_prescription extends BaseController
         $this->db->table($table)->where('id', $id)->update($update);
         $this->clinicalAuditTrail->logChangedFields('opd_prescription_medicine', $id, $current, array_replace($current, $update), $this->getCurrentUserId());
 
+        $masterMedId = (int) ($current['med_id'] ?? 0);
+        if ($masterMedId <= 0) {
+            $masterMedId = $this->resolveMedicineMasterIdByName((string) ($update['med_name'] ?? $current['med_name'] ?? ''));
+        }
+        if ($masterMedId > 0) {
+            $merged = array_replace($current, $update);
+            $this->trackMedicineUsage($masterMedId);
+            $this->syncMedicineMasterDefaults($masterMedId, [
+                'dosage' => $merged['dosage'] ?? '',
+                'dosage_when' => $merged['dosage_when'] ?? '',
+                'dosage_freq' => $merged['dosage_freq'] ?? '',
+                'dosage_where' => $merged['dosage_where'] ?? '',
+                'no_of_days' => $merged['no_of_days'] ?? '',
+                'qty' => $merged['qty'] ?? '',
+                'remark' => $merged['remark'] ?? '',
+            ]);
+        }
+
         return $this->response->setJSON([
             'update' => 1,
             'error_text' => 'Medicine updated',
diff --git a/app/Views/billing/opd_medicince_workspace.php b/app/Views/billing/opd_medicince_workspace.php
index 1c165d5..060a5a9 100644
--- a/app/Views/billing/opd_medicince_workspace.php
+++ b/app/Views/billing/opd_medicince_workspace.php
@@ -5,15 +5,6 @@
                 <div class="card-header d-flex justify-content-between align-items-center">
                     <strong>List of Medicine</strong>
                     <div class="d-flex gap-2">
-                        <select class="form-select form-select-sm" id="med_master_scope" style="width:150px;">
-                            <option value="active" selected>Recently Used</option>
-                            <option value="all">All Medicines</option>
-                            <option value="favorite">My Favorites</option>
-                        </select>
-                        <label class="form-check-label small d-flex align-items-center gap-1">
-                            <input type="checkbox" class="form-check-input mt-0" id="med_show_all_toggle">
-                            Show All
-                        </label>
                         <button type="button" class="btn btn-outline-secondary btn-sm med-filter" data-filter="all">All</button>
                         <button type="button" class="btn btn-outline-secondary btn-sm med-filter" data-filter="generic_issue">Generic/Salt Issue</button>
                         <button type="button" class="btn btn-outline-secondary btn-sm med-filter" data-filter="generic_same_name">Generic=Name</button>
@@ -125,8 +116,6 @@
 <script>
 (function() {
     var activeListFilter = 'all';
-    var activeMasterScope = 'active';
-    var showAllMedicines = false;
     var companySuggestTimer = null;
     var medMasterDataTable = null;
 
@@ -301,12 +290,6 @@
         if (activeListFilter !== 'all') {
             query.push('filter=' + encodeURIComponent(activeListFilter));
         }
-        if (activeMasterScope !== 'all') {
-            query.push('scope=' + encodeURIComponent(activeMasterScope));
-        }
-        if (showAllMedicines) {
-            query.push('show_all=1');
-        }
         if (query.length) {
             url += '?' + query.join('&');
         }
@@ -327,10 +310,6 @@
                     setMsg('normal', 'No record found where Generic/Salt is same as Medicine Name.');
                 } else if (activeListFilter === 'company_blank') {
                     setMsg('normal', 'No record found with blank Company Name.');
-                } else if (activeMasterScope === 'favorite') {
-                    setMsg('normal', 'No favorite medicines found.');
-                } else if (activeMasterScope === 'active') {
-                    setMsg('normal', 'No recently used medicines found.');
                 }
                 return;
             }
@@ -546,16 +525,6 @@
         loadList();
     });
 
-    $('#med_master_scope').on('change', function() {
-        activeMasterScope = String($(this).val() || 'all');
-        loadList();
-    });
-
-    $('#med_show_all_toggle').on('change', function() {
-        showAllMedicines = !!$(this).is(':checked');
-        loadList();
-    });
-
     $('#btn_med_ai_details').on('click', function() {
         var itemName = ($('#med_item_name').val() || '').trim();
         if (!itemName) {
@@ -642,8 +611,6 @@
     });
 
     applyFilterButtonState();
-    $('#med_master_scope').val(activeMasterScope);
-    $('#med_show_all_toggle').prop('checked', false);
     loadList();
     loadDuplicateReport();
     loadCompanySuggestions('');
diff --git a/app/Views/billing/opd_prescription_basic.php b/app/Views/billing/opd_prescription_basic.php
index ed129be..a8657f1 100644
--- a/app/Views/billing/opd_prescription_basic.php
+++ b/app/Views/billing/opd_prescription_basic.php
@@ -4728,6 +4728,41 @@
         var medName = (rowData.med_name || '').toString().trim();
         if (medName) { $('#med_name').val(medName); }
         $('#med_type').val((rowData.med_type || '').toString());
+
+        var dosage = (rowData.dosage || '').toString().trim();
+        var whenValue = (rowData.dosage_when || '').toString().trim();
+        var freqValue = (rowData.dosage_freq || '').toString().trim();
+        var whereValue = (rowData.dosage_where || '').toString().trim();
+        var daysValue = (rowData.no_of_days || '').toString().trim();
+        var qtyValue = (rowData.qty || '').toString().trim();
+        var remarkValue = (rowData.remark || '').toString().trim();
+
+        if (dosage) {
+            ensureMedicineMasterOption($('#med_dosage'), dosage);
+            $('#med_dosage').val(dosage).trigger('change');
+        }
+        if (whenValue) {
+            ensureMedicineMasterOption($('#med_when'), whenValue);
+            $('#med_when').val(whenValue).trigger('change');
+        }
+        if (freqValue) {
+            ensureMedicineMasterOption($('#med_freq'), freqValue);
+            $('#med_freq').val(freqValue).trigger('change');
+        }
+        if (whereValue) {
+            ensureMedicineMasterOption($('#med_where'), whereValue);
+            $('#med_where').val(whereValue).trigger('change');
+        }
+        if (daysValue) {
+            $('#med_days').val(daysValue);
+        }
+        if (qtyValue) {
+            $('#med_qty').val(qtyValue);
+        }
+        if (remarkValue) {
+            $('#med_remark').val(remarkValue);
+        }
+
         var medId = parseInt(rowData.id || 0, 10);
         var isFav = parseInt(rowData.is_favorite || 0, 10) === 1;
         if (medId > 0) {
@@ -4758,6 +4793,13 @@
                     + 'data-name="' + $('<div>').text(row.med_name || '').html() + '" '
                     + 'data-id="' + parseInt(row.id || 0, 10) + '" '
                     + 'data-type="' + $('<div>').text(row.med_type || '').html() + '" '
+                    + 'data-dosage="' + $('<div>').text(row.dosage || '').html() + '" '
+                    + 'data-dosage-when="' + $('<div>').text(row.dosage_when || '').html() + '" '
+                    + 'data-dosage-freq="' + $('<div>').text(row.dosage_freq || '').html() + '" '
+                    + 'data-dosage-where="' + $('<div>').text(row.dosage_where || '').html() + '" '
+                    + 'data-no-of-days="' + $('<div>').text(row.no_of_days || '').html() + '" '
+                    + 'data-qty="' + $('<div>').text(row.qty || '').html() + '" '
+                    + 'data-remark="' + $('<div>').text(row.remark || '').html() + '" '
                     + 'data-fav="' + parseInt(row.is_favorite || 0, 10) + '"></option>';
             });
             $('#medicine_suggest').html(html);