(pronounced GWAHN-a-benz, sold under the trade name Wytensin
) is an alpha agonist
of the alpha-2 type that is used as an antihypertensive
drug. It is used to treat high blood pressure (hypertension
The most common side effects during guanabenz therapy are dizziness, drowsiness, dry mouth, headache and weakness.
Guanabenz can make one drowsy or less alert, therefore driving or operating dangerous machinery is not recommended.