I am looking for some clarity on dosing and half life of a med. I understand the therapeutic level, toxic level and the desire to stay in the therapeutic range. Is there a formula that addresses when to expect to dose a patient? For example (and simplicity sake), if a med is 1000 mg (half life 6 hrs) Q4-6H and they are dosed at 0800 on Monday, at what time can we (a nurse) expect to administer the med on Tuesday morning? This was an exact sample from the class. Is it that we are trying to keep the full 1000 mg in the therapeutic range? Do I want to dose just before the half life? Thanks.