As with other drugs, Onyda XR (clonidine) can cause side effects, such as sleepiness and fatigue. More common side effects of Onyda XR may vary depending on whether it is being used by itself or in ...

Onyda XR is an extended-release liquid version of clonidine, a generic medication that has been trusted in various medical applications for decades. Unlike immediate-release versions of clonidine, ...