Strattera (Atomoxetine) – Patient Information

Strattera is a prescription medicine used to treat attention deficit hyperactivity disorder (ADHD) in children, teenagers and adults. Its active ingredient is atomoxetine. Unlike some other ADHD medicines, Strattera is not a stimulant and works by changing the way certain brain chemicals regulate attention and behaviour.

This guide explains how Strattera works, how it is taken, what to expect, and important safety information. It is written for people in the United Kingdom and reflects general UK practice and regulatory context.

Quick Facts

• Medicine: Strattera
• Active ingredient: Atomoxetine
• Type: Non-stimulant ADHD medicine
• Common uses: ADHD symptoms (in children/adolescents and adults)
• How it’s taken: Usually once or twice daily, depending on age and prescribed regimen
• Onset: Benefits may take several weeks to become clear

Basic Product Information

Strengths and capsule sizes may differ by product presentation. Your pharmacist or prescriber can confirm the exact strength you have.

How Strattera Works (Mechanism of Action)

Strattera (atomoxetine) is a selective norepinephrine reuptake inhibitor.

In simple terms:

• It affects levels of norepinephrine in the brain.
• Norepinephrine helps support attention, impulse control and focus.
• Because it works through a different pathway than stimulants, it may not produce an immediate “kick” in the way some stimulant medicines do.

Over time, better regulation of brain signalling may reduce core ADHD symptoms such as inattention and hyperactivity/impulsivity.

Pharmacokinetics (How the Body Handles It)

Pharmacokinetics describes what the body does with a medicine—how it is absorbed, distributed, metabolised, and eliminated.

• Absorption: Atomoxetine is absorbed after oral dosing. Peak blood levels generally occur within a few hours (often around 1–2 hours, but this can vary).
• Metabolism: It is mainly broken down in the liver by CYP2D6 enzymes.
• Impact of genetics: Some people metabolise atomoxetine more slowly or quickly due to genetic differences in CYP2D6 activity. This can affect how strong or long-lasting the effects are.
• Elimination: The medicine is removed primarily through the kidneys as metabolites.
• Steady state: With daily dosing, blood levels build up gradually; benefits may therefore be slower to appear compared with medicines that act immediately.

Practical implication: Consistent daily dosing is important, even if you don’t notice strong effects right away.

What Strattera Is Used for (Indications)

In the UK, Strattera is used for the treatment of ADHD:

• Children and adolescents: Typically when ADHD symptoms cause significant difficulties at school, home or in social situations.
• Adults: For ongoing ADHD symptoms.

It is generally considered as part of a broader ADHD management plan, which may include educational support, psychological strategies and behavioural interventions.

Dosing and How to Take Strattera

Important: Always follow the instructions given by your clinician. Doses are individualised based on age, weight, tolerability and response.

Typical dose approach

In many treatment plans, atomoxetine is started at a lower dose and gradually increased to reach an effective dose.

• Children/adolescents: A weight-based total daily dose is commonly used, with titration to reduce side effects.
• Adults: A titration schedule is typically used until the best balance of benefit and side effects is reached.

When to take it (timing)

Strattera is commonly taken:

• Once daily in the morning for many people; some may be advised to take it in the evening depending on individual effects.
• Twice daily (split dosing) for some regimens, especially if symptom coverage is needed across the day.

How to remember: Choose a time you can maintain daily (for example, with breakfast). If you are prescribed split dosing, keep the second dose later in the day as directed.

Missed dose guidance

• If you miss a dose, take it as soon as you remember on the same day.
• If it is close to the next dose, skip the missed dose—do not double up.
• If you’re unsure, ask a pharmacist for advice tailored to your schedule.

How Long Does Strattera Take to Work?

Because atomoxetine works gradually, it may take time to notice improvements:

• Early changes: Some people notice benefits in the first couple of weeks.
• More substantial effects: Often build over several weeks.
• Review: Clinicians usually reassess response after an appropriate trial period and adjust the plan if needed.

Tip: Keep track of symptoms, sleep quality and side effects (for example, using a simple diary) so your clinician can fine-tune dosing.

Food Interactions (What to Know)

Food can affect how quickly atomoxetine is absorbed, although it generally does not remove the medicine’s overall effect.

• Consistency matters: Try to take Strattera the same way each day (either with meals or consistently without), unless your clinician advises otherwise.
• Swallowing: Swallow capsules whole with water. Do not open or crush unless specifically instructed.

If you experience stomach upset, taking Strattera with food may help—ask your pharmacist if you’re unsure.

Alcohol and Medicine Interactions

Alcohol

Atomoxetine is not specifically “paired” with alcohol in a way that makes one safe and the other unsafe for everyone. However:

• Avoid or limit alcohol until you know how Strattera affects you.
• Alcohol can worsen side effects such as sleepiness, poor concentration or dizziness.
• If you are taking other medicines that affect the brain or liver, alcohol may increase the risk of complications.

Seek urgent advice if you develop severe dizziness, fainting, chest pain, unusual agitation or severe mood changes after drinking alcohol while on Strattera.

Other medicines (important interactions)

Atomoxetine can interact with other medicines, including those that affect liver enzymes and heart rate/blood pressure.

Tell your prescriber and pharmacist about all medicines you take, including:

• Prescription medicines
• Over-the-counter products (including cough/cold medicines)
• Herbal supplements (especially those affecting liver enzymes)

Key interaction considerations include:

• CYP2D6 inhibitors: Some medicines can reduce the breakdown of atomoxetine, potentially increasing side effects. Examples can include certain antidepressants and other drugs known to inhibit CYP2D6 (your pharmacist can check your specific medicines).
• Medicines affecting heart rhythm or blood pressure: Because atomoxetine can influence heart rate and blood pressure, caution is needed when combined with medicines that also affect cardiovascular function.
• Other ADHD medicines: Sometimes combination strategies are used, but this should only occur under close supervision.
• Medicines affecting liver: Since atomoxetine is metabolised in the liver, extra caution may be needed in liver disease or when taking other hepatically metabolised medicines.

Practical reminder: If you start, stop or change any medicine (including antibiotics or antidepressants), check with your pharmacist whether any interaction could occur.

Safety Profile: Side Effects and Warnings

Like all medicines, Strattera can cause side effects. Not everyone will get them, and many are manageable.

Common side effects

• Nausea
• Dry mouth
• Decreased appetite (especially in younger people)
• Dizziness
• Sleep disturbances (insomnia or sometimes sleepiness)
• Headache
• Constipation or stomach discomfort

Tip: These effects may lessen as your body adjusts, particularly after dose changes.

Serious side effects (seek urgent medical help)

Although uncommon, contact urgent medical services if you experience:

• Signs of an allergic reaction: swelling of face/lips, breathing difficulties, severe rash.
• Severe mood or behaviour changes, including new or worsening suicidal thoughts, extreme agitation or unusual aggression.
• Chest pain, fainting, severe palpitations or signs of an abnormal heartbeat.
• Signs of liver problems: yellowing of skin/eyes, dark urine, severe fatigue, or upper abdominal pain.
• Severe or persistent skin reactions, especially with fever or blistering.

Children and teenagers: growth and appetite

In younger patients, reduced appetite may affect weight gain. Clinicians typically monitor:

• Weight
• Height/growth
• Overall wellbeing

If a child appears not to be eating adequately or growth seems to slow, seek advice promptly.

Heart rate and blood pressure

Atomoxetine can raise heart rate and blood pressure in some people. Your clinician may check these values before and during treatment.

• Report palpitations, fainting or persistent shortness of breath.
• If you have known heart conditions or a family history of certain heart rhythm problems, discuss this before starting or continuing therapy.

Practical Tips for Using Strattera

• Take it the same way each day: Try consistent timing with meals.
• Be patient with the timeline: It may take weeks for full benefit.
• Track symptoms and side effects: A simple checklist can help your clinician adjust dosing.
• Manage nausea/dry mouth: Small meals, hydration and good oral hygiene can help. Your pharmacist can suggest strategies.
• Plan for sleep: If insomnia occurs, timing adjustments may help (ask your clinician).
• Do not stop suddenly without advice: If you want to discontinue or switch, discuss a safe plan with your clinician.

Driving and operating machinery: Strattera may cause dizziness or sleep changes in some people. Until you know how it affects you, use caution.

Alternative Options for ADHD

ADHD treatment is individual. Alternatives to Strattera may include:

• Stimulant medicines: Such as methylphenidate or lisdexamfetamine (commonly used in the UK). These may act faster but have different side-effect and monitoring considerations.
• Other non-stimulant options: Depending on availability and suitability, clinicians may consider other medicines used for ADHD.
• Behavioural and psychological interventions: Parent training, CBT for ADHD, school support and structured routines.
• Lifestyle supports: Sleep routine, exercise, reduced distractions and consistent daily structure.

Your clinician can advise which option is most appropriate based on symptom profile, age, medical history and treatment goals.

Market and Legal Context in the United Kingdom

In the UK, ADHD medicines are regulated under UK medicines law and must be supplied in line with NHS and pharmacy requirements. Many ADHD medicines are controlled under appropriate legislation due to their potential for misuse or dependence (this varies by product).

Atomoxetine (Strattera) is generally considered a non-stimulant option and may be chosen when stimulant medicines are unsuitable or when a longer-lasting, non-stimulant approach is preferred.

Availability can vary by formulation strength and supply logistics. Pharmacies follow regulated supply processes, including checks to ensure appropriate suitability for the individual patient.

Recent Guidance and Monitoring (What to Expect)

UK clinical practice for ADHD typically includes:

• Assessment of symptoms and impact on functioning.
• Review of comorbidities (for example anxiety, learning difficulties, sleep problems).
• Baseline checks as appropriate (for example blood pressure/heart rate, weight/appetite in younger people).
• Regular follow-up to review response, tolerability and side effects.
• Dose adjustment based on benefit and side effects.

Guidance is updated over time as evidence evolves. Your clinician will follow the latest relevant professional recommendations and safety updates.

Delivery and Availability in the UK

Availability depends on the specific capsule strength and stock levels. Many online pharmacies operate through regulated networks and use secure dispensing and delivery services.

• Delivery times: Typically depend on the courier and stock availability. Dispatch may occur on working days.
• Packaging: Medicines are usually delivered in appropriate protective packaging to maintain product integrity.
• Tracking: Many suppliers provide tracking details once the order dispatches.
• Stock variations: If your preferred strength is unavailable, the pharmacy may communicate alternatives or expected restock dates.

Tip: If you’re travelling or have important dates, order early to avoid running out.

FAQ – Strattera (Atomoxetine)

1) Is Strattera a stimulant?

No. Strattera (atomoxetine) is a non-stimulant ADHD medicine. It works differently from stimulant medications.

2) When will I feel better?

Some people notice changes within the first few weeks, but fuller benefit often takes several weeks. Your clinician will review progress and adjust treatment if needed.

3) What should I do if I miss a dose?

Take it when you remember on the same day. If it’s close to the next dose, skip the missed dose—don’t double up. Ask a pharmacist if you’re uncertain.

4) Can I take Strattera with food?

Yes. Taking it with food can help if you experience nausea or stomach upset. The key is to take it consistently in a way that suits you.

5) Will alcohol interact with Strattera?

There isn’t a single rule that applies to everyone, but alcohol can worsen side effects such as dizziness or sleep problems. Limiting alcohol and seeking advice if you’re unsure is sensible.

6) What medicines should I avoid or be careful with?

Tell your pharmacist about all medicines and supplements you take. Particular attention is often needed for medicines that affect liver enzymes (such as CYP2D6 inhibitors) and medicines that affect heart rate or blood pressure.

7) Can Strattera affect appetite or weight?

Yes, reduced appetite can occur, particularly in children and teenagers. Weight and growth are often monitored during treatment.

8) Does Strattera affect sleep?

It can. Some people experience insomnia; others may feel more tired. Your clinician may adjust timing or dose to manage this.

9) Is it safe to drive while taking Strattera?

If Strattera causes dizziness, drowsiness or reduced alertness, avoid driving or operating machinery until you know how you respond.

10) What warning signs mean I should seek urgent help?

Seek urgent medical attention if you have signs of allergic reaction, severe mood changes, chest pain, fainting/persistent palpitations, or symptoms that could indicate liver problems (such as yellowing of skin/eyes).

Summary

Strattera (atomoxetine) is a non-stimulant medicine used to treat ADHD in children, adolescents and adults. By selectively affecting norepinephrine signalling, it can improve attention and impulse control over time. Effects may take several weeks to build, and dosing is usually started low and adjusted to balance benefit and side effects.

For safe and effective use, take Strattera consistently, follow the timing instructions provided, and let your healthcare professional know about all medicines, alcohol use, and any concerning symptoms—especially mood changes, heart-related symptoms or signs of liver problems.

If you have any questions about how to take Strattera, managing side effects, or potential interactions, speak to a pharmacist.