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Atomoxetine (Generic Strattera): Uses, Dosage, Side Effects, and More
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Atomoxetine is a prescription medication used to treat attention-deficit hyperactivity disorder (ADHD) in children, adolescents, and adults. Unlike stimulant medications commonly used for ADHD, atomoxetineis a selective norepinephrine reuptake inhibitor (NRI) that helps improve focus, attention, and impulse control by boosting norepinephrine levels. It is not considered habit-forming and has a lower risk of misuse or dependence. Atomoxetine is available by prescription only and should be taken exactly as directed by your healthcare provider.
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Drug Facts
Generic name
Atomoxetine
Brand names
Strattera
Drug type
Selective norepinephrine reuptake inhibitor (NRI)
Controlled substance
Not a controlled medication
Dosage forms
Capsules, oral solution (generic only)
Typical dosage
In children and adolescents weighing ≤70 kg, treatment typically starts at 0.5 mg/kg once daily, with an increase after 3 days to a target dose of approximately 1.2 mg/kg/day, up to a maximum of 1.4 mg/kg/day or 100 mg, whichever is lower. For adults and adolescents weighing >70 kg, the usual starting dose is 40 mg once daily, which may be increased after 3 days to 80 mg once daily, with a maximum dose of 100 mg once daily, using capsules or oral solution as prescribed.
Basics
What Is Atomoxetine?
Atomoxetine is a prescription medication classified as a selective norepinephrine reuptake inhibitor (NRI). It is approved for the treatment of attention-deficit hyperactivity disorder (ADHD) and works by increasing norepinephrine levels in the brain. This neurotransmitter plays a key role in attention regulation, impulse control, and executive functioning.
Unlike stimulants, atomoxetine does not directly stimulate dopamine release in the brain’s reward pathways. Because of this, it carries a lower risk of abuse, misuse, or dependence and is not classified as a controlled substance. This makes it suitable for long-term ADHD management for those who can’t tolerate stimulants or have a history of substance sensitivity.
Note: This medication’s generic and brand-name formulations are used interchangeably throughout this article.
What Is Strattera?
Strattera is the brand-name version of atomoxetine and is prescribed to treat ADHD in children, adolescents, and adults. It is typically taken once or twice daily and provides continuous symptom control throughout the day rather than the short, peak-based effects seen with stimulant medications.
Because Strattera is a non-stimulant, it may be preferred for patients who experience stimulant-related side effects such as insomnia, appetite suppression, increased anxiety, or mood swings.
While symptom improvement with Strattera may take several weeks to become noticeable, its steady mechanism of action allows for consistent therapeutic benefits without the highs and lows commonly associated with stimulant therapy.
Indications
What Is Atomoxetine Used For?
Strattera is primarily indicated for the treatment of ADHD in both pediatric and adult populations. ADHD is a neurodevelopmental disorder characterized by symptoms of inattention, hyperactivity, and impulsivity. It helps patients improve attention spans, reduce impulsive behaviors, and control hyperactive tendencies.
Its use extends across a variety of age groups, including children 6 years and older and adults. For pediatric patients, Strattera provides an alternative when stimulant medications are not suitable due to contraindications or adverse reactions.
In adults, ADHD often presents with different challenges compared to children, and Strattera’s efficacy across life stages is valuable in comprehensive ADHD treatment plans.
Primary Indications
- Children & Adolescents: Strattera is approved for treating children and adolescents diagnosed with ADHD. Its approval for use in patients from the age of six ensures it addresses early signs of ADHD effectively, promoting focus and behavioral control.
- Adults: ADHD can affect various aspects of life, including professional productivity and personal relationships. Strattera helps in managing these symptoms effectively, making it an essential medication in adult ADHD management plans.
Strattera’s distinct therapeutic pathway makes it a preferred option for patients who experience adverse effects from stimulant medications or for those with coexisting conditions where stimulants are not recommended.
Its long-term use requires consistent monitoring by healthcare professionals to ensure optimal therapeutic outcomes and manage any side effects that may arise.
Mechanism
How Does Strattera Work?
Strattera works by increasing norepinephrine levels, a neurotransmitter associated with attention and impulse control. Its mechanism provides therapeutic effects that improve focus, control hyperactive behavior, and enhance the ability to organize activities.
Given its pharmacological profile, Strattera can be particularly useful in patients contraindicated for stimulant therapy or those who have not responded adequately to these interventions.
Mechanism of Action
The mechanism of action of Strattera centers on its selective inhibition of norepinephrine reuptake, a key neurotransmitter involved in the regulation of attention, impulse control, and hyperactivity. Unlike stimulant medications, which primarily affect the dopamine pathways, Strattera offers a unique treatment paradigm by focusing on norepinephrine modulation.
Atomoxetine’s action is most prominent in the prefrontal cortex, a brain region heavily involved in executive function and attention regulation. By increasing norepinephrine levels in this region, Strattera enhances signal transmission, thereby improving cognitive control over attention and behavior.
This targeted action allows for symptom reduction in both the inattention and hyperactivity/impulsivity domains of ADHD.
Pharmacokinetics
Following administration, atomoxetine is well absorbed, with peak plasma concentrations typically achieved within 1-2 hours. The medication is metabolized in the liver, primarily via the cytochrome P450 2D6 pathway, leading to interindividual variation in metabolic rates.
Note that, due to this variability, Strattera requires individualized dosing adjustments to achieve optimal therapeutic efficacy while minimizing adverse effects.
Critical Dosing Note: Approximately 7% of Caucasians and a smaller percentage of other populations are CYP2D6 poor metabolizers, which can cause Strattera blood levels to rise up to 10× higher than normal, increasing the risk of severe side effects even at standard doses; warning signs include extreme insomnia, resting heart rate over 100 bpm, or severe nausea at low doses, and affected individuals may require significant dose reduction or genetic testing for confirmation.
Dosage
Strattera Dosages and Administration
Strattera is supplied as capsules for oral administration. The dosing regimen is largely contingent upon the patient’s weight and therapeutic needs, necessitating careful consideration by healthcare professionals.
- Safety Warning (Do Not Open Capsules): Strattera capsules must be swallowed whole, as the medication is a potent ocular irritant and should not be mixed with food or liquids. If the capsule breaks and the powder comes into contact with the eyes, it can cause severe pain, swelling, and temporary vision damage. Patients—especially children who cannot swallow capsules—should request the liquid formulation (available as a generic) rather than opening a capsule.
Dosage Guidelines
- Children and Adolescents (weighing up to 70 kg): The initial recommended dose is 0.5 mg/kg/day. After 3 days, the dose may be increased to a target maintenance dose of approximately 1.2 mg/kg/day based on clinical response and tolerability.
- Adults and Children/Adolescents (weighing over 70 kg): The typical starting dose is 40 mg, with subsequent escalation to a target dose of 80 mg/day. Some patients may require adjustments up to 100 mg per day based on therapeutic response.
Administration Guidelines
Strattera can be administered with or without food, providing flexibility to accommodate patient preferences and minimize gastrointestinal side effects.
Many healthcare providers recommend administering Strattera in the morning or early afternoon to align with the natural circadian rhythm, enhancing daytime symptom control while minimizing the risk of sleep disturbances.
Patients must follow their healthcare provider’s dosing instructions to ensure optimal benefit and manage any potential side effects.
Duration and Onset
While the onset of therapeutic effects might not be immediate, many individuals begin to observe symptom improvement within a few weeks of consistent use, with maximum benefits sometimes taking up to 8 weeks. The medication’s half-life permits once-daily or twice-daily dosing, thereby maintaining consistent symptom control throughout the day.
The distinct non-stimulant property of Strattera also means it does not exacerbate anxiety or lead to the rebound effects commonly associated with stimulant medications.
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Side Effects
Strattera Side Effects and Risks
While Strattera is generally well-tolerated, like all medications, it can cause a range of side effects—from mild discomfort to more serious health concerns.
Common Side Effects
The most frequently reported side effects of Strattera are mild to moderate and often improve as the body adjusts to the medication over time.
- Dry Mouth: A common complaint among patients taking Strattera, dry mouth results from reduced salivary flow due to increased norepinephrine activity. Staying hydrated, chewing sugar-free gum, or using saliva substitutes can help relieve discomfort.
- Nausea and Decreased Appetite: Gastrointestinal symptoms such as nausea, upset stomach, or loss of appetite are particularly common during the first few weeks of treatment. These effects usually diminish as the body adapts. To manage them, patients are advised to take the medication with food and maintain regular, balanced meals to avoid excessive weight loss.
- Dizziness: Some individuals experience lightheadedness or dizziness, especially when standing up quickly—a condition known as orthostatic hypotension. This occurs because Strattera can influence vascular tone and blood pressure regulation. Standing up slowly and staying hydrated can help reduce these effects.
- Fatigue or Sleepiness: Strattera may cause fatigue or sleepiness, particularly during the initial phase of treatment. These sensations are usually temporary and tend to lessen over time as the body becomes accustomed to the medication. Adjusting the timing of the dose—for example, taking it in the evening—may help in some cases.
Serious Side Effects
Although serious side effects are rare, they can occur and require immediate medical evaluation.
- Cardiovascular Concerns: Strattera can increase heart rate and blood pressure, particularly in patients with cardiovascular disease or hypertension. For this reason, regular monitoring of heart rate and blood pressure is recommended throughout treatment. Any symptoms such as chest pain, palpitations, or shortness of breath should be promptly reported to a healthcare provider.
- Severe Liver Injury Warning: Although uncommon, Strattera has a documented association with toxic liver injury, which most often occurs within the first 120 days of treatment and may go undetected because routine blood tests are not typically required. Warning signs include yellowing of the skin or eyes (jaundice), dark urine, severe itching, upper right abdominal pain, or flu-like symptoms such as fatigue and muscle aches. If any of these occur, the medication should be stopped immediately, and a liver function test (LFT) should be requested, as early detection is critical.
- Psychological Effects & Suicidal Ideation: Strattera acts on the central nervous system and can affect mood and behavior, with children and adolescents at increased risk for irritability, agitation, depression, or suicidal thoughts, particularly during the first few months of treatment or after dose changes. It carries an FDA Black Box warning for suicidal ideation in youth, so caregivers should closely monitor for emergency warning signs such as social withdrawal, talk of self-harm, extreme hostility, or sudden personality changes, and seek immediate medical attention.
Regular check-ins with a healthcare provider, particularly during the early stages of therapy, can help ensure that the treatment remains safe, effective, and well-suited to the individual’s needs.
Interactions
Strattera Interactions
Strattera can interact with a range of medications and substances, potentially increasing side effect risks or altering therapeutic effectiveness. Understanding how Strattera interacts with other medications is vital to optimizing its efficacy and minimizing hazardous side effects.
Known Drug Interactions
- MAO Inhibitors: Concomitant use of Strattera with monoamine oxidase inhibitors—such as phenelzine or tranylcypromine—is strictly contraindicated. Combining these medications can lead to dangerous elevations in norepinephrine, potentially triggering hypertensive crises characterized by severe headache, chest pain, rapid heart rate, or dangerously high blood pressure. A waiting period of at least 14 days after discontinuing an MAOI is required before initiating Strattera.
- Albuterol: When taken alongside albuterol (commonly used for asthma), Strattera may heighten cardiovascular effects, including increased heart rate, tremor, or blood pressure spikes. While this interaction does not preclude combined use, caution is advised, particularly for patients with asthma or underlying cardiac conditions.
- Vasoactive Substances: Co-administration with other vasoactive agents—including some decongestants (such as pseudoephedrine), stimulants, or medications that affect blood pressure—may increase cardiovascular stimulation. This may present as elevated blood pressure, rapid heartbeat, anxiety, or dizziness. Patients should avoid non-prescription sympathomimetics unless approved by a healthcare provider.
Patients should always inform their healthcare provider about all prescription and over-the-counter medications, vitamins, and herbal supplements they are taking. This enables careful monitoring, dose adjustment, or substitution with safer alternatives where necessary.
Contraindications
Strattera Contraindications
Strattera (atomoxetine) can interact with several medications and substances, which may alter its effectiveness or increase the risk of side effects. Because Strattera works by increasing norepinephrine levels in the brain—a neurotransmitter that also affects heart rate and blood pressure—certain combinations of drugs can amplify its stimulant-like cardiovascular effects.
Understanding these interactions is essential to using Strattera safely and getting the most out of treatment for ADHD or related conditions.
Absolute Contraindications
- MAO Inhibitors (Monoamine Oxidase Inhibitors): Strattera must never be used in combination with MAO inhibitors, such as phenelzine, tranylcypromine, selegiline, or isocarboxazid. This can lead to dangerous elevations in norepinephrine, resulting in a hypertensive crisis—marked by severe headache, rapid heartbeat, chest pain, nausea, and dangerously high blood pressure. To prevent this, there must be at least a 14-day waiting period after stopping an MAOI before starting Strattera, and vice versa.
- Albuterol and Other Asthma Medications: When taken alongside albuterol (salbutamol)—a common bronchodilator used for asthma or COPD—Strattera may enhance cardiovascular stimulation, leading to symptoms such as increased heart rate, tremor, or blood pressure spikes. While the two drugs can often be used together under medical supervision, patients with asthma or heart conditions should be closely monitored for any signs of excessive palpitations, chest discomfort, or jitteriness.
- Vasoactive Substances and Stimulants: Medications or substances that raise blood pressure or heart rate can intensify Strattera’s cardiovascular effects. This includes certain decongestants like pseudoephedrine and phenylephrine, caffeine, energy drinks, and other stimulant-based ADHD medications (e.g., amphetamine or methylphenidate). Combined use may cause nervousness, anxiety, rapid heartbeat, dizziness, or elevated blood pressure. Patients should avoid taking non-prescription decongestants or stimulants unless explicitly approved by a healthcare provider.
- Antihypertensive Drugs: Because Strattera can raise blood pressure, it may reduce the effectiveness of antihypertensive medications. Regular blood pressure monitoring is recommended if Strattera is prescribed alongside antihypertensive agents.
- CYP2D6 Inhibitors (Certain Antidepressants): Drugs that inhibit the enzyme CYP2D6—such as fluoxetine (Prozac), paroxetine (Paxil), or quinidine—can increase blood levels of Strattera, making side effects more likely. This may include insomnia, rapid heartbeat, or increased anxiety. Dose adjustments may be required when these drugs are used together.
In all cases, open communication with a healthcare provider is the best safeguard against harmful drug interactions. Never start, stop, or adjust the dose of any medication without medical advice. Regular monitoring of blood pressure, heart rate, and mood during Strattera therapy helps ensure safe and effective treatment.
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Frequently Asked Questions (FAQs)
Didn’t see the answers you’re looking for in this article? Check out this comprehensive FAQ for more details.
Administration & Dosage
Strattera is administered orally as a capsule. It can be ingested with or without food, and it's typically taken once or twice daily, depending on your doctor's recommendations. It's essential to follow the dosing schedule your healthcare provider provides to achieve optimal results. Taking Strattera consistently at the same time each day aids in maintaining steady drug levels in your system.
The usual initial dose of Strattera is 40 mg per day. Depending on your response to the treatment, your doctor may increase the dosage. For individuals who do not show improvement at lower doses, the dose may be gradually increased to a maximum of 100 mg per day. Dosage adjustments are often based on a patient's age, weight, and symptom severity.
The best time to take Strattera is typically in the morning or early afternoon. By taking the medication at these times, you can avoid potential interference with your sleep patterns. It's recommended to take the medication at the same time each day. This consistency helps maintain a consistent drug concentration in your bloodstream, which can contribute to better symptom management.
It is generally not advisable to take Strattera at night, as it may disrupt your sleep. Since the medication can remain active in your system for several hours, taking it in the evening might lead to insomnia or restless sleep. However, if your doctor recommends a nighttime dosing schedule due to specific circumstances, it is important to follow their advice while closely monitoring your sleep patterns.
If you miss a dose of Strattera, it's best to take it as soon as you remember, unless you're close to your next scheduled dose. In such cases, skip the missed dose and continue with your regular schedule. Doubling doses to make up for a missed dose is not recommended, as it may increase the risk of side effects. If you frequently forget to take your medication, consider setting reminders or alarms to help you maintain your dosing schedule.
Uses & Mechanism of Action
Strattera is primarily used for the management of Attention Deficit Hyperactivity Disorder (ADHD) in both children and adults. It helps enhance attention span while reducing impulsiveness and hyperactivity. This can lead to improved focus on tasks, better academic or work performance, and improved social interactions. Strattera is often prescribed for individuals who do not respond well to stimulant medications or for those who prefer a non-stimulant option.
Strattera works by selectively inhibiting the reuptake of norepinephrine, a neurotransmitter in the brain. This action increases the amount of norepinephrine available in the central nervous system, improving focus and attention. Unlike stimulant medications, Strattera's mechanism does not primarily affect dopamine. This contributes to its classification as a non-stimulant ADHD medication, offering an alternative to those who may not tolerate stimulants well.
Strattera is not classified as a stimulant. While stimulants are commonly used in the treatment of ADHD, they primarily affect dopamine levels. Strattera, known generically as atomoxetine, is a norepinephrine reuptake inhibitor. This distinction makes it a preferable option for certain individuals, particularly those with a history of substance abuse or those who experience adverse effects from stimulant medications.
Strattera is not classified as a controlled substance. Its non-stimulant nature and distinct mechanism of action reduce potential misuse or dependence risks, unlike many stimulant-based ADHD medications. This can add a layer of comfort for patients and healthcare providers concerned about medication misuse.
The effects of Strattera may take several weeks to become fully apparent. While some individuals may notice improvements in focus and behavior within a week, others may require additional time for the full therapeutic benefits to manifest. Patience and regular follow-ups with your healthcare provider are key during the initial treatment phase to assess response and make any necessary adjustments.
Side Effects & Safety
Common side effects associated with Strattera include stomach upset, nausea, fatigue, decreased appetite, dry mouth, and, in some cases, dizziness. These symptoms are often mild and may diminish as your body adjusts to the medication. It's important to monitor how you feel during the first few weeks of treatment and report any persistent or bothersome side effects to your healthcare provider.
Weight loss can occur as a side effect of Strattera, primarily due to decreased appetite. Monitoring weight changes is important, particularly in children and adolescents who are still growing. If significant weight loss is observed, it should be discussed with a healthcare provider. Adjustments to diet, meal scheduling, or medication dosage may be necessary to ensure that nutritional needs are being met.
While less common, some individuals might experience weight gain as a side effect of Strattera. This could be due to decreased physical activity or changes in metabolism. However, substantial weight gain is not a typical outcome with Strattera use. Regularly monitoring weight and discussing any significant changes with your healthcare provider can help address concerns about weight management.
Fatigue or drowsiness can be a side effect of Strattera. If you experience significant tiredness, particularly when you first start taking the medication, it's important to avoid activities that require full alertness, such as driving or operating heavy machinery. Over time, your body may adjust, and these feelings may decrease. If sleepiness persists, consulting your healthcare provider can help determine whether an adjustment to your dosage or schedule is needed.
Mood changes, including feelings of depression, can occur with Strattera. Monitoring your mental health closely while on the medication is crucial. If you or those around you notice significant mood changes or if depressive symptoms arise, contact your healthcare provider to discuss potential adjustments or additional support. It's important to address mental health changes promptly to ensure optimal treatment outcomes.
Interactions & Contraindications
Combining Strattera with alcohol is generally not recommended. Alcohol can increase some side effects of Strattera, such as dizziness and impaired judgment, potentially leading to unsafe situations. It's advisable to limit or avoid alcohol consumption while taking this medication to minimize risks.
There are no known severe interactions between valsartan, a commonly used high blood pressure medication, and Strattera. However, it is always crucial to discuss all medications and supplements you are taking with your healthcare provider to ensure safety and address any potential interactions that could affect your treatment or overall health.
Strattera should not be used by individuals with a known hypersensitivity to atomoxetine or any of its components. It is also contraindicated in patients with narrow-angle glaucoma and those who have used Monoamine Oxidase Inhibitors (MAOIs) in the past 14 days, due to the risk of increased blood pressure. Those with severe heart conditions should also avoid this medication. A detailed discussion with your healthcare provider can help identify any personal risk factors.
The safety of Strattera during pregnancy has not been conclusively established. If you are pregnant or planning to become pregnant, it is essential to discuss the potential risks and benefits of continuing Strattera with your healthcare provider. They can help you weigh the risks and determine the best course of action for your specific situation.
Strattera can interact with various medications, including certain antidepressants and asthma medications. These interactions may impact the effectiveness of the medications or increase the risk of side effects. It's crucial to provide your healthcare provider with a comprehensive list of all medications you are taking, so they can make informed decisions about your treatment plan.
Generic & Alternatives
Strattera is available as a generic medication under the name atomoxetine. The availability of a generic version makes this treatment option more accessible and affordable for many patients compared to the brand-name product. Generic versions contain the same active ingredients and work in the same way as their brand-name counterparts.
Strattera and Adderall are not the same. Adderall is a stimulant medication that contains amphetamine and dextroamphetamine, which primarily affect dopamine levels in the brain. Strattera, on the other hand, is a non-stimulant that works on norepinephrine. Each medication has its own benefits and potential side effects, and the choice between them should be made based on individual needs and medical history, often in consultation with a healthcare provider.
Substituting Strattera with another ADHD medication is possible, as there are numerous options available, both stimulant and non-stimulant. The decision to switch medications should be guided by a healthcare provider, who will consider factors such as symptom severity, any existing medical conditions, potential side effects, and personal preferences.
As of now, Strattera has not been discontinued and remains available in both brand and generic forms. Availability can vary by location and pharmacy, so it's advisable to check with local pharmacies to confirm supply status if you have difficulty obtaining the medication.
The cost of Strattera without insurance can vary widely, depending on the pharmacy, dosage, and location. Prices can vary, so it's a good idea to compare prices across pharmacies or inquire about discount programs and savings cards that could help reduce costs. Some online resources also offer price-comparison tools to help you find the most cost-effective option.
Disclaimer
The information provided on this page is for general informational purposes only and is not intended as medical advice. Always consult with a licensed healthcare provider before starting, stopping, or changing any medication regimen. While Invictus strives to provide accurate and up-to-date information, individual health conditions and circumstances vary. The prices, availability, and descriptions of all medications on this page are subject to change.
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