Maprotiline is a tricyclic (or more specifically tetracyclic) antidepressant that is used to treat depression in the USA, it was once marketed in the UK.[1] It is very toxic in cases of overdose.
↑Brayfield, A, ed. (13 December 2013). "Maprotiline". Martindale: The Complete Drug Reference. London, UK: Pharmaceutical Press. Retrieved 16 August 2014.