[Konstantinos]

The textdraw IDs are integers and what iWhite is asking for is possible:

pawn Code:

SetTimerEx("EndOfTD", 3000, false, "ii", playerid, _:td);

pawn Code:

forward EndOfTD(playerid, PlayerText:td);
public EndOfTD(playerid, PlayerText:td)
{
    PlayerTextDrawDestroy(playerid, td);
    return 1;
}