A tetracyclic antidepressant is an antidepressant drug from the tetracyclic drug group.
The name tetracyclic is derived from the drug's molecular structure which consists of four ring like structures (compare tricyclic antidepressant).
Maprotiline, trade named Ludiomil®, and Mirtazapine, trade named Remeron®, are the only two drugs from this group widely used for the treatment of clinical depression. Research on other tetracyclic antidepressant compounds (for example setiptiline and mianserin) have been reported in the scientific literature but are not publicly available.
There are also several antibiotics based on Tetracycline.
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