Problem: A patient taking lithium to stablize his bipolar disorder starts showing signs of toxicity. His plasma lithium levels are measured to be 4.4 mmol/L, well over the normal therapeutic range of (0.6-1.2 mmol/L). The Tmax for lithium is 2h post-administration and the half-life is 12 hours. This patient takes lithium every 8 hours. How long would you need to withhold the medication before his plasma levels return to within the therapeutic range? Need Assignment Help?