Quetiapine is not for use in psychotic conditions related to dementia. Quetiapine may cause heart failure, sudden death, or pneumonia in older adults with dementia-related conditions.
Stop using quetiapine and call your doctor at once if you have the following symptoms: fever, stiff muscles, confusion, sweating, fast or uneven heartbeats, uncontrolled muscle movements, symptoms that come on suddenly such as numbness or weakness, severe headache, and problems with vision, speech, or balance.
You may have thoughts about suicide when you first start taking an antidepressant, especially if you are younger than 24 years old. Your doctor will need to check you at regular visits for at least the first 12 weeks of treatment.
Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.