Hey, if u dun mind taking those herbal type of drink, u can try Hui Ji Bu Yao Jing..u know, it's something like Yomeishu or DOM except that it's non alcohol, and it's very effective..and in fact, some individuals can be hyperactive..only needs 4 hrs of sleep per day..but still very alert..
it's tastes sweet but it's herbal type of sweet..it's ard 750mls, $39.90, can be found in provisional shops or NTUC..
