Clonidine Tablets in Pakistan – 0300-2500997 Clonidine Tablets are widely used in Pakistan to treat high blood pressure (hypertension), ADHD, anxiety, and even withdrawal symptoms from opioids or nicotine. Clonidine belongs to a class of medications known as alpha-2 adrenergic agonists, which work by relaxing blood vessels and reducing heart rate, resulting in lowered blood pressure and a calming effect on the brain.