Intuniv

(guanfacine ER)

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Helps you focus your thoughts.

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Our bottom line

Intuniv (guanfacine ER) is an option for ADHD patients who cannot take stimulants.

Lowest price near you
  • Lowest price with coupon
    $24.88
Quick facts about Intuniv
  • Drug class: Mental health
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (guanfacine er)

Upsides

  • Not a stimulant and is an option for people who cannot take stimulants.
  • Can be used either alone or with other stimulant medications.
  • Available in generic.
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What to expect from Intuniv, on one page

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Downsides

  • Intuniv (guanfacine ER) can cause changes in your blood pressure so it will be important to watch your blood pressure regularly.
  • May cause drowsiness, dizziness, and headaches especially at higher doses.
  • It can make you feel more irritable or anxious. Talk to your doctor if it bothers you.
  • Not recommended for people over 65 years old.
  • It may cause drowsiness, especially when you first start taking Intuniv (guanfacine ER) or with dose increases, so do not drive until you know how Intuniv (guanfacine ER) affects you.
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What to expect from Intuniv, on one page

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How it works

While it's not clear how Intuniv (guanfacine ER) works against ADHD, it works in the brain to relax blood vessels and slow down heart rate.

Quick facts about Intuniv
  • Drug class: Mental health
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (guanfacine er)

Used for

  • ADHD
  • Tourette syndrome (children and adolescents)

Dosage forms

  • Extended release
Tried Intuniv? Write a review!

Prices and coupons

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What to expect when you take Intuniv (guanfacine ER) for ADHD

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  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Possible side effects
  • Low blood pressure
  • Dizziness
  • Fatigue
  • Headache
  • Loss of appetite
  • Stomach pain
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Side effect rates for Intuniv (guanfacine ER)

From 312 clinical trials of Intuniv when taken for adhd
  • Headache
    27%27%
    18%18%
  • Fatigue
    22%22%
    12%12%
  • Dizziness
    16%16%
    10%10%
  • Loss of appetite
    15%15%
    14%14%
  • Stomach pain
    12%12%
    8%8%
  • Irritability
    7%7%
    4%4%
  • Anxiety
    5%5%
    3%3%
  • Rash
    3%3%
    1%1%
  • Constipation
    3%3%
  • Weight gain
    3%3%
    2%2%
  • Itchiness
    2%2%
    1%1%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Intuniv.

Intuniv (guanfacine ER)
Placebo

People taking Intuniv felt side effect more

People taking Intuniv felt side effect less

No difference

Risks and Warnings for Intuniv (guanfacine ER)

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    • Higher risk if:
    • High blood pressure
    • Heartrate problems

    Fainting can happen while you're taking Intuniv (guanfacine ER) because your blood pressure or heart rate can change when you change positions, such as going from sitting to standing, and you might feel dizzy. Be careful because you might be likely to fall. If you're sensitive to low blood pressure or you're taking medicines to control your blood pressure, change position slowly until your body is used to the medicine. If it doesn't get better after a couple of weeks, talk to your doctor.

Common concerns from people taking Intuniv (guanfacine ER)

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Food
  • Avoid taking Intuniv (guanfacine ER) with a high-fat meal.
Sleep
  • May cause drowsiness, dizziness, and headaches especially at higher doses.
  • It may cause drowsiness, especially when you first start taking Intuniv (guanfacine ER) or with dose increases, so do not drive until you know how Intuniv (guanfacine ER) affects you.