Developed in 1985, Quetiapine is an atypical antipsychotic used for the treatment of schizophrenia, bipolar disorder, and major depressive disorder. This medication basically works by blocking the receptors in the brain that dopamine acts on. This prevents the excessive activity of dopamine and helps to control symptoms of schizophrenia and manic depression. When it comes to its side effects, Quetiapine can cause sleepiness, constipation, weight gain, and dry mouth. It also has other side effects, namely low blood pressure, seizures, a prolonged erection, high blood sugar, and neuroleptic malignant syndrome. In fact, the use of Quetiapine in older people with dementia does increase the risk of death. Plus, its use in the third trimester of pregnancy may result in a movement disorder in the baby for some time after birth. Bear in mind that you should take this drug on an empty stomach or with a light meal. Remember that it is not recommended that you take it with a full heavy meal.