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Enzyme inhibitors are substances that interfere with the action of enzymes. Classes of these of relevent to psychology include:

• Amine oxidase inhibitors
• Cholinesterase inhibitors
• Decarboxylase inhibitors
• Hydroxylase inhibitors
• Monoamine oxidase inhibitors

such substance include:

• Acetazolamide
• Bromocriptine
• Captopril
• Theophylline