diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java
index ce83c2bb2..8b98e5be7 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/Item.java
@@ -113,8 +113,10 @@ public class Item implements Bundlable {
 	}
 	
 	public void doDrop( Hero hero ) {
-		hero.spendAndNext( TIME_TO_DROP );
-		Dungeon.level.drop( detachAll( hero.belongings.backpack ), hero.pos ).sprite.drop( hero.pos );
+		if (hero.belongings.backpack.contains(this)) {
+			hero.spendAndNext(TIME_TO_DROP);
+			Dungeon.level.drop(detachAll(hero.belongings.backpack), hero.pos).sprite.drop(hero.pos);
+		}
 	}
 
 	//resets an item's properties, to ensure consistency between runs
@@ -124,7 +126,9 @@ public class Item implements Bundlable {
 	}
 
 	public void doThrow( Hero hero ) {
-		GameScene.selectCell( thrower );
+		if (hero.belongings.backpack.contains(this)) {
+			GameScene.selectCell(thrower);
+		}
 	}
 	
 	public void execute( Hero hero, String action ) {
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/potions/brews/Brew.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/potions/brews/Brew.java
index 96d4944da..f7fd42bd7 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/potions/brews/Brew.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/potions/brews/Brew.java
@@ -45,7 +45,9 @@ public abstract class Brew extends Potion {
 	@Override
 	public void doThrow(Hero hero) {
 		//identical to Item.doThrow
-		GameScene.selectCell( thrower );
+		if (hero.belongings.backpack.contains(this)) {
+			GameScene.selectCell(thrower);
+		}
 	}
 	
 	@Override