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Does Prozac Help With ADHD? What the Research Says

Dena Westphalen
Author:
Dena Westphalen
PharmD
Dr. Michael Chichak
Medical Reviewer:
Dr. Michael Chichak
MD
The medications listed on this website are provided for informational purposes only.
Their inclusion does not guarantee they will be prescribed to any individual, as treatment decisions are ultimately at the discretion of healthcare providers. Healthcare providers may prescribe other medications, including non-stimulant options, or recommend non-pharmacological treatment based on the patient’s unique health circumstances and needs. Read more

Prozac has a boxed warning[1] , the most serious type of warning from the Food and Drug Administration (FDA). Prozac (fluoxetine) has an increased risk of suicidal thoughts and behaviors in young adults. Remember to discuss the risks with your healthcare provider.

Highlights

  • Prozac is an SSRI antidepressant that is sometimes used off-label to treat certain symptoms of ADHD.
  • Other medications like stimulants are typically prescribed to treat ADHD. They may be used in combination with Prozac if deemed necessary.
  • It can often take 4 to 8 weeks to see the effects of Prozac on your mood and emotions.

Managing attention-deficit hyperactivity disorder (ADHD) can often feel like a losing battle. For many people, it’s more than just a lack of focus, but also other emotional issues such as anxiety, depression, or intense emotions. When standard treatments for ADHD don’t treat all of the symptoms, healthcare providers may start to look at alternatives. 

Prozac (fluoxetine) is considered as an additional treatment for ADHD. This guide will explore how Prozac may fit into an ADHD treatment plan, what the research says, and why or why not it may be a good choice for you.

Get a personalized treatment plan for ADHD online in 24 hours.

What Is Prozac (Fluoxetine), and Is It Approved for ADHD?

Prozac is the brand name for the generic medication called fluoxetine. It belongs to a class of medications called selective serotonin reuptake inhibitors (SSRIs). 

Prozac has been FDA-approved for several conditions, including:

It is not FDA-approved to treat ADHD, but can be prescribed off-label. Off-label means a healthcare professional prescribes a medication even though it is not FDA-approved to treat this condition. They can make this decision based on their professional judgement when they believe a medication can work for you.

When using Prozac off-label for ADHD[2] , it is usually prescribed to treat additional emotional symptoms of ADHD like anxiety or depression

"Medications are sometimes prescribed off-label when they have shown benefit, yet not necessarily specifically approved for that indication. Another medication that we use commonly for ADHD is Wellbutrin. Although Wellbutrin is not officially indicated for ADHD, it is oftentimes helpful for its symptoms. Prozac is yet another example of such an occurrence. ADHD presents with multiple symptoms that oftentimes overlap with mood disorders, anxiety disorders, so you and your provider can discuss if this is an appropriate plan of care in your particular case."
Medical provider at MEDvidi

Does Prozac Help With ADHD?

When asking, “Is Prozac good for ADHD?”, the answer depends on the specific symptoms of ADHD someone is experiencing. ADHD usually refers to difficulty focusing, hyperactivity, and impulsivity. These symptoms are treated by specific medications like stimulants since they are caused by imbalances in the neurotransmitters dopamine and norepinephrine. 

Prozac works on serotonin in your brain and can help treat emotional symptoms of ADHD. These symptoms can include anxiety, depression, irritability, and issues with emotional regulation. Traditional ADHD symptoms such as problems with executive functioning (planning and organizing), difficulty focusing, memory problems, and hyperactivity are not treated by Prozac. 

Because of this, first-line ADHD treatments are usually stimulant medications, such as Adderall. Using SSRIs like Prozac along with stimulant medications for treating ADHD has shown to be safe[3] . However, it’s important to consult a healthcare provider to receive personalized instructions; at MEDvidi, you can get help for ADHD online.

What Does the Research Say?

Although Prozac is not FDA-approved to treat ADHD, small studies[2] have shown that fluoxetine, the active ingredient in Prozac, is safe and can help with certain symptoms of ADHD in adults. It is important to note that studies consistently show that Prozac does not perform as well as stimulant medications for treating cognitive symptoms of ADHD. 

When Might Prozac Be Used for ADHD?

Healthcare providers usually consider Prozac for ADHD when first-line treatments do not provide complete relief. There are specific situations in which Prozac may be useful for ADHD:

ADHD With Depression

It is estimated that up to 44% of adults with ADHD[4] also experience depression. When someone is experiencing both conditions, it can be difficult to know which of them is causing specific symptoms. Prozac can lighten or eliminate the feelings of depression which may make it easier for someone to build and use skills for their ADHD.

"Depression often co-occurs alongside ADHD. When this happens, stimulant medications such as Adderall, often fall short to help a person achieve optimal results. When depression is present, a person with ADHD can feel better while the stimulant is effective, but then fall into a relatively depressed mood as the effects wear off later in the day. So, while stimulants can help improve focus and productivity, they don’t treat an underlying mood disorder. Prozac can represent a great option to help stabilize the mood and depressive symptoms and thereby further improve ADHD management whether or not a stimulant is indicated."
Medical provider at MEDvidi

ADHD With Anxiety

Anxiety often accompanies ADHD, and stimulants can make anxiety worse by increasing heart rate or creating a jittery or irritable feeling. A healthcare provider may consider using Prozac to treat anxiety and provide enough internal calmness for someone with ADHD to manage their daily tasks. The choice of the medication if you have both ADHD and anxiety should be highly personalized.

Emotional Dysregulation and Mood Instability

Mood swings or an inability to manage emotions can also accompany ADHD. Someone may find themselves snapping at loved ones or struggling to move on from feelings of failure after small mistakes. In these instances, an SSRI like Prozac may help to stabilize emotions and eliminate mood swings. 

Contraindications for Stimulant Medications

Although stimulant medications are often a first-line treatment for ADHD, some people cannot take these medications. A prior health history of certain heart conditions, insomnia, or a history of substance abuse can make it unsafe to take stimulants. Prozac may be prescribed as a part of a broader non-stimulant treatment plan for ADHD. 

See a licensed healthcare provider online to find out what ADHD treatment can be right for you.

Prozac and ADHD Medications: Can They Be Taken Together?

Many patients find that the most effective treatment plan is a combination of an SSRI and a stimulant. This “dual approach” aims to treat focus with the stimulant and emotional stability with the Prozac.

It’s important that you never combine a SSRI with a stimulant medication without talking with a healthcare provider. This is because there can be dangerous interactions or side effects such as:

  • Serotonin Syndrome: This is a rare but serious, and sometimes life-threatening, condition that can occur when taking multiple medications that work on neurotransmitters. 
  • Metabolism Issues: Prozac and stimulants have drug interactions and can interfere with certain enzymes that break down medications. 

Side Effects and Risks to Know

Like any medication, Prozac can cause side effects. Some people have reported that Prozac has made their ADHD worse due to a feeling of apathy or a lack of emotions. It’s important to talk with your healthcare provider about your ADHD symptoms because if you struggle with a lack of motivation due to your ADHD, Prozac may make it more difficult to start tasks. 

Common side effects of Prozac include:

  • Nausea or upset stomach
  • Insomnia or vivid dreams
  • Changes in appetite
  • Sexual dysfunction (decreased libido or difficulty reaching orgasm)
  • Increased sweating

Prozac also has a black box warning, the most serious warning from the FDA, for an increased risk of suicidal thoughts and behaviors in children, adolescents, and young adults.

There are also certain circumstances in which Prozac may not be a safe choice or may need additional monitoring to take safely. These can include:

  • Other mental health conditions such as bipolar disorder
  • History of seizures
  • Issues with bleeding
  • Certain heart conditions like QT prolongation

This is not a complete list of possible side effects or considerations for taking Prozac. Talk with your healthcare provider about your entire health history and all of the prescription and over-the-counter medications, herbs, and supplements you take so they can ensure Prozac is safe for you.

If you’re experiencing suicidal or self-harming thoughts and require immediate assistance, contact a crisis hotline, such as 911, 988 suicide & crisis lifeline (toll-free), or Samaritans (116-123 or via chat).

How Long Does Prozac Take to Work, and What Should You Expect?

Prozac does not start to work immediately, and it typically takes 4 to 8 weeks for someone to see the results of taking the medication. Here is an example of how you may feel when you start taking Prozac, but keep in mind that every person’s experience is unique. 

  • Weeks 1-2: You may feel no changes at all, but may also experience mild side effects like nausea.
  • Weeks 4-6: This is when most people start to feel the effects of Prozac as a lift or lightening of their mood.
  • Weeks 8-12: The full therapeutic effect is typically reached and you can assess if Prozac is working for you. 

Do not stop taking Prozac without talking with your healthcare provider, even if you do not feel any effects after several weeks. It’s important to not stop the medication abruptly as it can cause side effects known as discontinuation syndrome or withdrawal. If Prozac is not working for you, your healthcare provider will help to develop a plan for you to stop taking it safely. 

Prozac vs. Standard ADHD Medications

This table will help to compare Prozac to the FDA-approved medications for ADHD. Prozac is usually added onto your treatment plan instead of being recommended as a standalone ADHD treatment; it would likely be given alongside an FDA-approved medication for ADHD. 

Medication

Stimulants like Adderall

Non-stimulants like Strattera

Prozac (fluoxetine)

FDA-approved for ADHD

Yes

Yes

No

Where it works in the brain

Dopamine and norepinephrine

Norepinephrine

Serotonin

How quickly does it start to work

30-60 minutes

2 to 4 weeks

4 to 8 weeks

Treats cognitive symptoms

Yes

Yes

No

Treats emotional symptoms

Maybe

Maybe

Yes

Conclusion

When wondering if Prozac helps with ADHD, the short answer is yes. But the nuanced answer is it only treats certain symptoms of ADHD. It won’t help with your cognitive or executive function, but it may help stabilize your emotions. 

If you feel that your ADHD is a mix of cognitive and emotional issues, or if you are taking a medication for ADHD and still feel like you are having symptoms, Prozac may be an option for you. The first step is to speak with a provider and talk about the symptoms you are experiencing to get personalized support. 

Frequently Asked Questions

It is unlikely that Prozac will help you focus as this is usually a cognitive symptom of ADHD. However, if you are struggling to focus due to racing thoughts or depression, it is possible that you will find it easier to focus after taking Prozac.

It is unlikely that Prozac will help you with impulse control as this is usually a cognitive symptom of ADHD. It may be able to help with emotional impulsivity if you find yourself having sudden outbursts of anger. 

No. Adderall is a stimulant medication that is FDA-approved to treat cognitive symptoms of ADHD. Prozac is an SSRI that works slowly and can help with emotional symptoms of ADHD.

Neither Prozac or Zoloft is FDA-approved for ADHD and both medications are SSRIs. Because they are not approved to treat ADHD, it is hard to directly compare them. Most studies have looked at fluoxetine, the active ingredient in Prozac, for ADHD as it is usually slightly more helpful for people with this condition than Zoloft. 

Possibly. Some people say they experience apathy or a lack of emotions when taking SSRIs. If someone has a hard time finding motivation or energy due to their ADHD, it’s possible that taking an SSRI like Prozac can make it harder for someone to focus and complete tasks. 

Talk to your healthcare provider as soon as possible about how to get a new prescription. You shouldn’t go without prescribed medication. If you’ve run out of ADHD medication early, you may not be able to get your next month’s doses early.

Sources

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4 sources
  1. DailyMed - REMERON- mirtazapine tablet, film coated REMERONSOLTAB- mirtazapine tablet, orally disintegrating. Nih.gov. Published 2024.
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  2. Barrickman L, Noyes R, Kuperman S, Schumacher E, Michele Renee. Verda. Treatment of ADHD with fluoxetine: A preliminary trial.
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  3. Lee DY, Kim C, Shin Y, Park RW. Combined Methylphenidate and Selective Serotonin Reuptake Inhibitors in Adults With Attention-Deficit/Hyperactivity Disorder. JAMA Netw Open. 2024
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  4. Meinzer MC, Chronis-Tuscano A. ADHD and the Development of Depression: Commentary on the Prevalence, Proposed Mechanisms, and Promising Interventions. Curr Dev Disord Rep. 2017 Mar
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Dena Westphalen
Author:
Dena Westphalen
PharmD
Dr. Michael Chichak
Medical Reviewer:
Dr. Michael Chichak
MD
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This article is based on scientific evidence, written by experts and fact checked by experts.

Our team of experts strive to be objective, unbiased, honest and to present both sides of the argument.

This article contains scientific references. The numbers
in the parentheses (1, 2, 3) are clickable links to peer-reviewed scientific papers.