Guanfacine reduces nerve impulses in your heart and blood vessels. Guanfacine works by relaxing blood vessels, which lowers blood pressure and improves blood flow. Guanfacine is used to treat high blood pressure (hypertension). It is sometimes given together with other blood pressure medications. Guanfacine is also used to treat attention deficit hyperactivity disorder (ADHD) in children who are at least 6 years old. Guanfacine may also be used for purposes not listed in this medication guide.
Tenex is a drug used solely or with other drugs to help prevent stroke, heart attack and kidney problems. Tenex treats hypertension. Tenex acts in the brain by decreasing certain nerve signals from the brain to the blood vessels and the heart. Through this process, the blood vessels relax, so blood flow more smoothly and heart rate is slowed.