Tell me the difference between sinequan and seroquel (quetiapine)?

TCA vs neuroleptic: Sinequan is the brand name for doxepin, available generically for many years. It's a very sedating tricyclic antidepressant, now used mostly as a sleep aid. Seroquel is the brand name for quetiapine, available generically in the us since march 2012. An antipsychotic & mood stabilizer, it's also quite sedating. However, seroquel's potential medical risks argue against using it for sleep alone.