Draenic Pale Ale is the August brew from the Brew of the Month Club.
All members of the Club get free sample of the brew in their in-game mail at start of August. Should you want more, your local Brew of the Month Club Brew Vendor sells it in stacks of six till the end of August.
Like any weak alcohol, this makes you slightly drunk. Also, like all Brew of the Month brews, drinking one of these will create a Empty Brew Bottle that can be targeted and thrown.
As a special effect of this brew, a small pink elekk can spawn nearby and follow you for short time. Drinking more will cause more to spawn or mount you on one.