Can you tell me if a person has sleep apnea, is it dangerous to be on seraquil if it may depress the nervous system and make him not breath enough at night?

See your dr.: Seroquel (quetiapine) is sedating; however, it does not depress the respiratory centers of the brain. If a person has sleep apnea, then he needs a full evaluation and sleep study. Weight loss may help if a person is obese. Other treatments include the use of a custom fit CPAP machine or uvulopharyngoplasty. He should see a sleep specialist and/or an ENT surgeon.