Witam!
Na początek wspomnę iż autorem tego skryptu jest Trepido.. Ja tylko edytowałem angielskie komentarze na polskie.

data/actions/scripts/potions.lua

--Polskie komentarze by Stiesse
local greatHealthPot = 7591
local greatManaPot = 7590
local strongHealthPot = 7588
local strongManaPot = 7589
local healthPot = 7618
local manaPot = 7620
function onUse(cid, item, frompos, item2, topos)
    if(item.itemid == healthPot) then
                doSendAnimatedText(getPlayerPosition(cid), "Aaaah...", TEXTCOLOR_ORANGE)
        if(doTargetCombatHealth(0, cid, COMBAT_HEALING, 370, 530, CONST_ME_MAGIC_BLUE) == LUA_ERROR) then
            return FALSE
        end
    elseif(item.itemid == manaPot) then
                doSendAnimatedText(getPlayerPosition(cid), "Aaaah...", TEXTCOLOR_ORANGE)
        if(doTargetCombatMana(0, cid, 380, 450, CONST_ME_MAGIC_BLUE) == LUA_ERROR) then
            return FALSE
        end
    elseif(item.itemid == strongHealthPot) then
        if getPlayerVocation(cid) == 3 or getPlayerVocation(cid) == 7 or getPlayerVocation(cid) == 4 or getPlayerVocation(cid) == 8 then
        if getPlayerLevel(cid) > 50 then
                doSendAnimatedText(getPlayerPosition(cid), "Aaaah...", TEXTCOLOR_ORANGE)
        if(doTargetCombatHealth(0, cid, COMBAT_HEALING, 550, 850, CONST_ME_MAGIC_BLUE) == LUA_ERROR) then
            return FALSE
        end
        else
        doPlayerSendTextMessage(cid, 21, "Masz za maly level.")
        end
        else
        doPlayerSendTextMessage(cid, 21, "Nie jestes ta profesja.")
        end
    elseif(item.itemid == strongManaPot) then
        if getPlayerVocation(cid) == 1 or getPlayerVocation(cid) == 2 or getPlayerVocation(cid) == 5 or getPlayerVocation(cid) == 6 or getPlayerVocation(cid) == 3 or getPlayerVocation(cid) == 7 then
                if getPlayerLevel(cid) > 50 then
        doSendAnimatedText(getPlayerPosition(cid), "Aaaah...", TEXTCOLOR_ORANGE)
        if(doTargetCombatMana(0, cid, 6150, 7250, CONST_ME_MAGIC_BLUE) == LUA_ERROR) then
            return FALSE
        end
        else
        doPlayerSendTextMessage(cid, 21, "Masz za maly level..")
        end
        else
        doPlayerSendTextMessage(cid, 21, "Nie jestes ta profesja")
        end
    elseif(item.itemid == greatHealthPot) then
        if getPlayerVocation(cid) == 4 or getPlayerVocation(cid) == 8 then
        if getPlayerLevel(cid) > 80 then
                doSendAnimatedText(getPlayerPosition(cid), "Aaaah...", TEXTCOLOR_ORANGE)
        if(doTargetCombatHealth(0, cid, COMBAT_HEALING, 1050, 1650, CONST_ME_MAGIC_BLUE) == LUA_ERROR) then
            return FALSE
        end
        else
        doPlayerSendTextMessage(cid, 21, "Masz za maly level..")
        end
        else
        doPlayerSendTextMessage(cid, 21, "Nie jestes ta profesja.")
        end
    elseif(item.itemid == greatManaPot) then
        if getPlayerVocation(cid) == 1 or getPlayerVocation(cid) == 2 or getPlayerVocation(cid) == 5 or getPlayerVocation(cid) == 6 then
                if getPlayerLevel(cid) > 80 then
        doSendAnimatedText(getPlayerPosition(cid), "Aaaah...", TEXTCOLOR_ORANGE)
        if(doTargetCombatMana(0, cid, 1250, 1350, CONST_ME_MAGIC_BLUE) == LUA_ERROR) then
            return FALSE
        end
        else
        doPlayerSendTextMessage(cid, 21, "Masz za maly level.")
        end
        else
        doPlayerSendTextMessage(cid, 21, "Nie jestes ta profesja.")
        end
    end
    return TRUE
end

actions.xml

-- Potions
<action itemid="7588" script="potions.lua" />
<action itemid="7589" script="potions.lua" />
<action itemid="7590" script="potions.lua" />
<action itemid="7591" script="potions.lua" />
<action itemid="7618" script="potions.lua" />
<action itemid="7620" script="potions.lua" />