Dopaquel is an alternative to Seroquel, both being a Quetiapinedrug. It is used in the treatment of psychosis and Bipolar disorder, but also to treat severe depression in conjunction with anti-depressants. It has a sedative effect in most people and is also used as a sleep-aid (in preference to benzodiazipine) in people with mental health problems who suffer from insomnia as it is not habit forming, like diazipam (branded as Valium, amongst others). However, in some people Quetiapine can actually cause insomnia and there is controversy surrounding its use as a sedative.