Catapres 100 mcg contains Clonidine Hydrochloride, a prescription medication commonly used to treat high blood pressure (hypertension) and also prescribed off-label for conditions such as ADHD, anxiety, opioid withdrawal, and sleep disorders. This alpha-2 adrenergic agonist works by lowering heart rate and relaxing blood vessels, making it effective for both cardiovascular health and certain neurological conditions. In Pakistan, Catapres is available through limited pharmacies, imported sellers, and online sources.