Hello thanks for asking from HCM for your health related queries I can understand your concern. Clonidine and Guanfacine both are alpha agonist sympathetic drugs. Both drugs are known to reduce anxiety and cause sedation. These drugs have been studies and are found to be very useful in ADD disorders especially in inattentive type. You have ADD but this has not been diagnosed properly. So first of all I d advise you to visit a psychiatrist for help and making a diagnosis. If it comes out to be ADD then drugs like Clonidine or Guanfacine can be used. Both are safe drugs but are known to cause sedation, sleepiness, dizziness, hypotension, postural hypotension, slowed heart rate etc symptoms. Please visit a psychiatrist for evaluation and help. Thanks, I hope this helps you. Take care Dr. Seikhoo Bishnoi, Psychiatrist.