Boost Stone quando Chega no boost maximo ela continua Gastando e não boosta mais. Eu queria que parasse de gastar as Boost Stone quando chega no boost Máximo

EDITED O POSTE

function onUse(cid, item, frompos, item2, topos)

if not isCreature(item2.uid) or not isSummon(item2.uid) then
doPlayerSendCancel(cid, "You can only give this Boost to trainers' pokemons.")
return true
end

if getCreatureHealth(item2.uid) == 0 then return true end
local pb = getPlayerSlotItem(getCreatureMaster(item2.uid), 8)

--doPlayerSendTextMessage(cid, 27, "You gave a Boost Stone to "..getPokeName(item2.uid)..".")

local level = getItemAttribute(pb.uid, "level")
local exp = getItemAttribute(pb.uid, "exp")
local neededexp = getItemAttribute(pb.uid, "nextlevelexp")
local boost = getItemAttribute(pb.uid, "boost") or 0

if boost >= 200 then
doPlayerSendCancel(cid, "Your pokemon is already at maximum boost.")
return true
end
doRemoveItem(item.uid, 1)

if getHappiness(item2.uid) < 50 then
doSendMagicEffect(getThingPos(item2.uid), 168)
return true
end

doCreatureSay(item2.uid, "BOOST+.", TALKTYPE_ORANGE_1)
doSetItemAttribute(pb.uid, "boost", boost + 1)
doPlayerSendTextMessage(getCreatureMaster(item2.uid), 27, "Your "..getPokeName(item2.uid).." has eaten a Boost Stone!")
doSendFlareEffect(getThingPos(item2.uid))
doSendAnimatedText(getThingPos(item2.uid), "B O O S T!", 215)
doCreatureSay(cid, getPokeName(item2.uid)..", take this Boost!", TALKTYPE_SAY)

return false
end

Deu Certo só que Porem quando eu vou tentar Usar a Boost Stone ainda continua aparecendo

13:13 (Kamiki) Chapalirous [325]: Electabuzz, take this Boost!

Mas não esta boostando