Prescription onlyLower-cost generic availableClass: Cardiovascular

Tenex

(guanfacine)

Prescription onlyLower-cost generic availableClass: Cardiovascular
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Treats ADHD and lowers blood pressure.

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Our bottom line

Tenex (Guanfacine) can be used to treat both blood pressure and ADHD, but it's not recommended as a first-line treatment for either problem.

Price and discounts
Prices and coupon for 30 (1mg) tablets of guanfacine

Upsides

  • The same medication treats two different things, high blood pressure and attention deficit hyperactivity disorder (ADHD).
  • It's not a "controlled medication".
  • Used to control ADHD when stimulant medications haven't worked or can't be used due to other medical problems.
  • Available as a generic medication, so it should be more affordable than other options.

Downsides

  • Doesn't control ADHD as well as stimulants do, so it's used as a second-line medication.
  • Not a preferred drug to control blood pressure.
  • Can't be stopped suddenly, especially for blood pressure, since the blood pressure can dramatically increase.
How it works

Tenex (Guanfacine) is a centrally-acting alpha agonist medication. It lowers blood pressure by slowing down the heart rate and relaxing the blood vessels. It's not clear how Tenex (Guanfacine) works in ADHD, but it's used when stimulants haven't worked or can't be used in people.

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Side effect rates for Tenex (guanfacine)

120 From clinical trials of Tenex / HIgh blood pressure (1 mg)
  • Dry mouth
  • Drowsiness
  • Headache
  • Fatigue
  • Any side effect
  • Muscle weakness
  • Dizziness

Risks and Warnings for Tenex (guanfacine)

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    • Higher risk if:
    • Taking other medications that cause sedation or sleepiness

    People report having sleepiness or sedation while on Tenex (Guanfacine). You're at higher risk for this if you're taking other medications that have similar effects. Don't drive or do anything that requires concentration until you know how Tenex (Guanfacine) affects you.

Common concerns from people taking Tenex (guanfacine)

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Pregnancy
Alcohol
  • Limit the amount of alcohol you drink while taking this.
Sleep
  • You can feel sleepy the first few times you take it, or when your dose is increased. Don't drive or do anything that requires concentration until you know how the medication affects your body.
  • People report having sleepiness or sedation while on Tenex (Guanfacine). You're at higher risk for this if you're taking other medications that have similar effects. Don't drive or do anything that requires concentration until you know how Tenex (Guanfacine) affects you.