See the Interactions section for more details. Also explain to your Health care provider For those who have applied clonidine transdermal patches (Catapres-TTS) and also have had an allergic reaction. Clonidine treats large blood pressure by stimulating αtwo receptors inside the brainstem, which decreases peripheral vascular resistance, decreasing hypertension. https://victorz824ifa4.wikipublicity.com/user