This tag refers to how the body interacts with drugs such as how the body absorbs, distributes, metabolises and excretes (these four aspects of pharmacokinetics are often abbreviated ADME) said drugs.

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Drugs metabolism and detection

If someone is taking treatment for a psychiatric disorder, for example diazepine, would traces of the metabolized drug show in their sweat or saliva? Would it be chemically detectable?Any links to ...
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Pharmacokinetics: why do certain drugs follow zero-order kinetics?

I understand that alcohol and phenytoin are two examples of drugs that follow zero-order kinetics. Why do these two particular drugs follow zero-order kinetics as opposed to first-order kinetics?
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Pharmacology Half Life Calculation

I'm really stuck on this question. I'm being asked to find the half life of a drug. The Vd is 50L/kg. The clearance is 0.1 L/hr/kg. The patient weighs 70 kg. Equation is: T1/2 (halflife) = 0.693 * ...
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What is the physiological difference between snorting/swallowing cocaine

I know that mucosa inside the nose absorbs cocaine molecules when snorting cocaine, but what difference is there compared to swallowing? Also more cocaine administration equals more cocaine molecules ...
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Why can't sodium butyrate be delivered orally in humans and other mammals?

I think I know why -- bioavailability problems but since I have no firm evidence to support this theory I thought I would ask the biology stackexchange community for their input. I'd like some firm ...