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Tricyclic antidepressants are a class of drugs prescribed to alleviate depression. They function by inhibiting the reuptake of neurotransmitters like norepinephrine, serotonin, and dopamine in the brain, allowing these chemicals to accumulate and improve mood.12

These medications, characterized by a chemical structure of three carbon rings, were discovered in the 1950s. Examples include imipramine and amitriptyline. While effective for a high percentage of patients, their antidepressant effects may take two to four weeks to become apparent. Side effects can include dry mouth, blurred vision, constipation, and dizziness. Tricyclics can also interact with certain blood pressure medications.12

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