Asprin I'm assuming, tried it long time ago, took a whole bottle around 300 pills 350mg. After waiting for some time, this horrible noise starts happening in your head and it doesn't matter if you plug your ears or not because the noise is still there, it's similar to being right next to a freight train but even louder, you cannot even hear yourself talk, no pain but it's like psychological torture, if there had been a gun I would have shot myself gladly. After 3 or 4 hours of this couldn't stand the noise anymore went to hospital, what causes the effects is potassium depletion (electrolyte I'mbalance)