diff --git a/src/main/java/org/isf/medicalstockward/gui/WardPharmacy.java b/src/main/java/org/isf/medicalstockward/gui/WardPharmacy.java
index 587ad2a2d0..eaeee96f85 100644
--- a/src/main/java/org/isf/medicalstockward/gui/WardPharmacy.java
+++ b/src/main/java/org/isf/medicalstockward/gui/WardPharmacy.java
@@ -783,8 +783,7 @@ public void focusLost(FocusEvent e) {
 						weightFrom = Integer.parseInt(jWeightFromTextField.getText());
 						if (weightTo < 0 || weightTo > 200) {
 							jWeightToTextField.setText(""); //$NON-NLS-1$
-							JOptionPane
-											.showMessageDialog(WardPharmacy.this, MessageBundle.getMessage("angal.medicalstockward.insertavalidweight")); //$NON-NLS-1$
+							MessageDialog.error(WardPharmacy.this, "angal.medicalstockward.insertavalidweight");
 						}
 					} catch (NumberFormatException ex) {
 						jWeightToTextField.setText("0"); //$NON-NLS-1$
@@ -813,7 +812,7 @@ public void focusLost(FocusEvent e) {
 						weightTo = Integer.parseInt(jWeightToTextField.getText());
 						if (weightFrom < 0) {
 							jWeightFromTextField.setText("");
-							JOptionPane.showMessageDialog(WardPharmacy.this, MessageBundle.getMessage("angal.medicalstockward.insertavalidweight"));
+							MessageDialog.error(WardPharmacy.this, "angal.medicalstockward.insertavalidweight");
 						}
 					} catch (NumberFormatException ex) {
 						jWeightFromTextField.setText("0");
diff --git a/src/main/java/org/isf/medicalstockward/gui/WardPharmacyRectify.java b/src/main/java/org/isf/medicalstockward/gui/WardPharmacyRectify.java
index 7264a6f36e..bdc0a51b6f 100644
--- a/src/main/java/org/isf/medicalstockward/gui/WardPharmacyRectify.java
+++ b/src/main/java/org/isf/medicalstockward/gui/WardPharmacyRectify.java
@@ -376,7 +376,7 @@ private void initComponents() {
 			double movQuantity = lotQty - newQty;
 
 			if (movQuantity == 0. || newQty < 0) {
-				JOptionPane.showMessageDialog(this, MessageBundle.getMessage("angal.medicalstockward.rectify.pleaseinsertavalidvalue"));
+				MessageDialog.error(this, "angal.medicalstockward.rectify.pleaseinsertavalidvalue");
 				return;
 			}
 			if (newQty == 0.) {
diff --git a/src/main/java/org/isf/priceslist/gui/ListBrowser.java b/src/main/java/org/isf/priceslist/gui/ListBrowser.java
index 898c481497..00ec407d66 100644
--- a/src/main/java/org/isf/priceslist/gui/ListBrowser.java
+++ b/src/main/java/org/isf/priceslist/gui/ListBrowser.java
@@ -116,7 +116,7 @@ private JButton getJButtonDelete() {
 			jButtonDelete.setMnemonic(MessageBundle.getMnemonic("angal.common.delete.btn.key"));
 			jButtonDelete.addActionListener(actionEvent -> {
 				if (jTablePriceLists.getSelectedRow() < 0) {
-					JOptionPane.showMessageDialog(null, MessageBundle.getMessage("angal.priceslist.pleaseselectalisttodelete"));
+					MessageDialog.error(null, "angal.priceslist.pleaseselectalisttodelete");
 				} else {
 					if (jTablePriceLists.getRowCount() == 1) {
 						MessageDialog.error(null, "angal.priceslist.sorryatleastonelist");