Fixes it so patches do not work on robotic limbs.

code/modules/reagents/reagent_containers/patch.dm

@@ -13,6 +13,14 @@
 /obj/item/reagent_containers/pill/patch/afterattack(obj/target, mob/user , proximity)
 	return // thanks inheritance again
 
+/obj/item/reagent_containers/pill/patch/attack(mob/living/L, mob/user)
+	if(ishuman(L))
+		var/obj/item/bodypart/affecting = L.get_bodypart(check_zone(user.zone_selected))
+		if(affecting.status != BODYPART_ORGANIC)
+			to_chat(user, "<span class='notice'>Medicine won't work on a robotic limb!</span>")
+			return
+	..()
+
 /obj/item/reagent_containers/pill/patch/canconsume(mob/eater, mob/user)
 	if(!iscarbon(eater))
 		return 0