Kapvay (generic: clonidine) is a prescription medication used to treat Attention-Deficit Hyperactivity Disorder (ADHD). It can be used alone or in combination with other medications. Kapvay belongs to a group of drugs called alpha-2 adrenergic receptor agonists. The way it works for treating ADHD is unknown.

This medication comes in tablet form and is usually taken twice daily, with or without food. Swallow Kapvay tablets whole.

Common side effects of Kapvay include drowsiness, tiredness, and colds.