Clonidine: a practical guide for usage in children.

Clonidine, oral and patch, has been used in adults for the treatment of hypertension and Tourette's Syndrome. Recently clinicians have begun to employ it in several oft label usages in children, especially behavioral syndromes. This article is a guide to its usage in children and includes discussion of its indications, contraindications, pre-treatment laboratory studies, dosing and drug interactions.