diff --git a/projects/common/src/main/java/dan200/computercraft/shared/details/ItemDetails.java b/projects/common/src/main/java/dan200/computercraft/shared/details/ItemDetails.java
index c5cbc2311..55bda23df 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/details/ItemDetails.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/details/ItemDetails.java
@@ -13,6 +13,9 @@ import net.minecraft.nbt.Tag;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.item.EnchantedBookItem;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.LingeringPotionItem;
+import net.minecraft.world.item.TippedArrowItem;
+import net.minecraft.world.item.alchemy.PotionUtils;
 import net.minecraft.world.item.enchantment.EnchantmentHelper;
 import net.minecraft.world.level.EmptyBlockGetter;
 import net.minecraft.world.level.block.Block;
@@ -72,6 +75,9 @@ public class ItemDetails {
         var enchants = getAllEnchants(stack, hideFlags);
         if (!enchants.isEmpty()) data.put("enchantments", enchants);
 
+        var effects = getAllEffects(stack);
+        if (!effects.isEmpty()) data.put("potionEffects", effects);
+
         if (tag != null && tag.getBoolean("Unbreakable") && (hideFlags & 4) == 0) {
             data.put("unbreakable", true);
         }
@@ -137,4 +143,41 @@ public class ItemDetails {
             enchants.add(enchant);
         }
     }
+
+    /**
+     * Retrieve all potions from given stack.
+     *
+     * @param stack Stack to analyse.
+     * @return A filled list that contain all visible potions.
+     */
+    private static List<Map<String, Object>> getAllEffects(ItemStack stack) {
+        return PotionUtils.getMobEffects(stack).stream().map(p -> {
+            Map<String, Object> potion = new HashMap<>(4);
+            potion.put("name", DetailHelpers.getId(RegistryWrappers.MOB_EFFECTS, p.getEffect()));
+            potion.put("displayName", Component.translatable(p.getDescriptionId()).getString());
+
+            // Expose the roman numerals (e.g. Instant Health II), rather than the raw amplifier value.
+            if (p.getAmplifier() > 0) potion.put("potency", p.getAmplifier() + 1);
+
+            if (p.isInfiniteDuration()) {
+                potion.put("duration", Double.POSITIVE_INFINITY);
+            } else if (p.getDuration() > 1) {
+                potion.put("duration", p.getDuration() / 20.0 * getPotionDurationMultiplier(stack));
+            }
+            return potion;
+        }).toList();
+    }
+
+    /**
+     * Get the potion duration multiplier for an item, to handle items which have a shorter duration than a normal
+     * potion.
+     *
+     * @param stack The current stack.
+     * @return The duration multiplier.
+     */
+    private static double getPotionDurationMultiplier(ItemStack stack) {
+        if (stack.getItem() instanceof LingeringPotionItem) return 0.25;
+        if (stack.getItem() instanceof TippedArrowItem) return 0.125;
+        return 1.0;
+    }
 }
diff --git a/projects/common/src/main/java/dan200/computercraft/shared/platform/RegistryWrappers.java b/projects/common/src/main/java/dan200/computercraft/shared/platform/RegistryWrappers.java
index 7069db974..368230fbc 100644
--- a/projects/common/src/main/java/dan200/computercraft/shared/platform/RegistryWrappers.java
+++ b/projects/common/src/main/java/dan200/computercraft/shared/platform/RegistryWrappers.java
@@ -10,6 +10,7 @@ import net.minecraft.core.Registry;
 import net.minecraft.core.registries.Registries;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.effect.MobEffect;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.crafting.RecipeSerializer;
@@ -31,6 +32,7 @@ public final class RegistryWrappers {
     public static final RegistryWrapper<BlockEntityType<?>> BLOCK_ENTITY_TYPES = PlatformHelper.get().wrap(Registries.BLOCK_ENTITY_TYPE);
     public static final RegistryWrapper<Fluid> FLUIDS = PlatformHelper.get().wrap(Registries.FLUID);
     public static final RegistryWrapper<Enchantment> ENCHANTMENTS = PlatformHelper.get().wrap(Registries.ENCHANTMENT);
+    public static final RegistryWrapper<MobEffect> MOB_EFFECTS = PlatformHelper.get().wrap(Registries.MOB_EFFECT);
     public static final RegistryWrapper<ArgumentTypeInfo<?, ?>> COMMAND_ARGUMENT_TYPES = PlatformHelper.get().wrap(Registries.COMMAND_ARGUMENT_TYPE);
     public static final RegistryWrapper<RecipeSerializer<?>> RECIPE_SERIALIZERS = PlatformHelper.get().wrap(Registries.RECIPE_SERIALIZER);
     public static final RegistryWrapper<MenuType<?>> MENU = PlatformHelper.get().wrap(Registries.MENU);