Compare Atenolol vs. Tenex

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Tenormin (atenolol)

Prescription only

Tenex (Guanfacine)

Prescription only
Lowers blood pressure and controls heart rate.

Tenormin (atenolol) is good for controlling chest pain and treating a heart attack. It has fewer side effects than other beta blockers. You need to take it on an empty stomach and you can't skip doses.

4.9/ 7 average rating with 457 reviewsforAtenolol
Treats ADHD and lowers blood pressure.

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.

Upsides
  • A first-choice treatment to prevent chest pain (angina).
  • A first-choice treatment for heart attack recovery.
  • At lower doses, Tenormin (atenolol) has fewer side effects than other beta blockers because it targets the heart and not other parts of the body.
  • 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
  • You need to take Tenormin (atenolol) on an empty stomach.
  • Taking a beta blocker might make you feel more tired or out of breath during exercise or normal daily routines. This gets better for most people, but it might not go away for others.
  • Not a first-choice treatment for high blood pressure unless you have heart disease. However, your doctor could add it to other medicines you're already if your blood pressure is still too high.
  • You can't miss or skip doses. If you stop Tenormin (atenolol) suddenly, it can cause your blood pressure to go up really quickly, raising your risk of heart attack and stroke.
  • Tenormin (atenolol) can hide symptoms of low blood sugar if you're diabetic.
  • 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.
Used for
Dosage forms
  • Pill
  • Pill
  • Extended release
Price
Lowest price near you
$4
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Lowest price near you
$4
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Reviews
457 
58%
think this treatment is worth it
48%
think this treatment works well
16%
think this treatment is a hassle

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Side effects
10possible side effects
  • Tiredness
    26%
  • Dizziness
    13%
  • Cold arms and legs
    12%
  • Depression
    12%
  • Fatigue
    6%
  • Shortness of breath
    6%
  • Low blood pressure on movement changes
    4%
  • Slower heartbeat
    3%
  • Leg Pain
    3%
  • Light-headedness
    3%
See more detailed side effects
7possible side effects
  • Dry Mouth
    10%
  • Somnolence
    10%
  • Headache
    7%
  • Fatigue
    5%
  • Any side effect
    5%
  • Asthenia
    3%
  • Dizziness
    2%
See more detailed side effects
Risks and warnings
  • Heart attack or increased chest pain

    Suddenly stopping Tenormin (atenolol)

  • Slowing heart rate

    Taking calcium channel blockers

  • Increased risks during surgery

    Major surgery requiring anesthesia

  • Masked symptoms of low blood sugar

    Diabetes

  • Increased risk of rebound high blood pressure

    Taking clonidine

See more detailed risks and warnings
  • Sedation

    Taking other medications that cause sedation or sleepiness

  • Rebound high blood pressure

    Stopping Tenex (Guanfacine) suddenly to treat high blood pressure

See more detailed risks and warnings