User:Mr. Ibrahem/Guanfacine

Guanfacine, sold under the brand name Tenex among others, is a medication used to treat attention deficit hyperactivity disorder (ADHD) and high blood pressure. It is a less preferred treatment for ADHD and for high blood pressure. It is taken by mouth.

Common side effects include sleepiness, constipation, dry mouth, sexual problems, and headaches. Other side effect may include anxiety, low blood pressure, depression, and urinary problems. Use is not recommended during pregnancy or breastfeeding. It appears to work by activating the α2A receptors in the brain thereby decreasing sympathetic nervous system activity.

Guanfacine was approved for medical use in the United States in 1986. It is available as a generic medication. A month supply in the United Kingdom costs the NHS about £60 as of 2019. In the United States the wholesale cost of this amount is about 7.11 USD. In 2017, it was the 131st most commonly prescribed medication in the United States, with more than five million prescriptions.