See the Interactions part for more details. Also inform your Health care company In case you have used clonidine transdermal patches (Catapres-TTS) and also have had an allergic reaction. For those who get dizzy when standing: This problem is named orthostatic hypotension. Clonidine can make this ailment even worse. https://socialislife.com/story5250359/indicators-on-onolidine-you-should-know