Allergy symptoms to Substances. People who are allergic to any of the following shouldn't choose clonidine. Applies to clonidine: oral pill, oral tablet extended release. Other dosage types: epidural solution; transdermal patch extended launch There exists a case report recommending employing naloxone to counter the sedative consequences of clonidine.[12] https://rufusm305ctk0.wikiap.com/user