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biotransforming reactions. They are classified as Phase I and Phase II reactions.
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| | Phase I reactions are simple reactions and modify the chemical by adding a functional structure, allowing the substance to be excreted or further changed by a Phase II enzyme. The three main Phase I reactions are oxidation, reduction, and hydrolysis.
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| | Phase II reactions conjugate or combine the modified xenobiotic with another substance. The conjugated products are
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