API CancelPlayerBuff

Removes a specific buff from the player.

CancelPlayerBuff(buffIndex);

• buffIndex : The index of the buff to remove. Can be obtained with GetPlayerBuff. Can also use buff name since the 2.3 patch.

CancelPlayerBuff(GetPlayerBuff(0,"HELPFUL"))

• Result : Removes the first (right-most in the default UI) buff from the player.

(tested on live servers 2.0)

• This function is not protected nor limited in any way to hardware event restriction Blizzard used so far. This function can be called freely from an AddOn to auto-remove a given buff.
• This function uses a zero-based index, while UnitBuff does not.
• The Burning Crusade: GetPlayerBuff returns 0 if the buff doesn't exist. It stands to reason that this function would then be 1-based in TBC.