Patients treated with quetiapine IR preceding enrollment were direct switched to the equivalent dose of quetiapine XR. The dose and treatment regimen of this study are shown in Figure 1.

Seroquel comes in immediate-release (IR) and extended-release (ER or XR) tablets. Either form may be used off-label to help improve sleep within about an hour of taking the medication. The most ...

This slump was largely attributed by the expiry of patents on key drugs, including the loss of patent protection in the US for schizophrenia drug, Seroquel IR (quetiapine). Revenue in Western ...

Therefore, the convenient dosage regimen and rapid initiation scheme of quetiapine extended release (XR) were expected to provide better effectiveness and promote adherence in patients with ...