atomox 18mg tablet - Atomoxetine (18mg) medicine

Atomoxetine 18mg Tablet: Complete Guide for ADHD Treatment

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🏭 Sanity Pharma 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 17, 2026
⚠️ Hepatotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for ADHD.
Reviewed by
SaathiMed Expert Panel | Oct 17, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Suicidal thoughts or self-harm behavior
  • Yellowing of skin or eyes (jaundice)
  • Severe chest pain or irregular heartbeat
  • Difficulty breathing or swelling of face, lips, or throat
  • Prolonged and painful erection (priapism)
  • Severe abdominal pain with nausea and vomiting
  • Unusual bleeding or bruising

If experiencing severe symptoms, call emergency services immediately.

What is atomox 18mg tablet used for?

Atomoxetine 18 mg tablet is a non-stimulant medication used to treat ADHD. It works by increasing norepinephrine in the brain, improving attention and reducing impulsivity. It is taken orally, usually once or twice daily, and may take 2-4 weeks for full effect.

  • Generic Name: Atomoxetine (18mg)
  • Manufacturer: Sanity Pharma
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 atomox 18mg tablet के बारे में (Hindi Summary)

उपयोग: यह दवा एटोमोक्सेटीन 18 मिलीग्राम टैबलेट के रूप में उपलब्ध है और इसका उपयोग ध्यान अभाव अतिसक्रियता विकार (ADHD) के इलाज के लिए किया जाता है। यह बच्चों, किशोरों और वयस्कों में ध्यान केंद्रित करने, आवेग को कम करने और अतिसक्रियता को कम करने में मदद करती है। यह दवा मस्तिष्क में नॉरएपिनेफ्रिन के स्तर को बढ़ाकर काम करती है। यह एक गैर-उत्तेजक दवा है और इसका दुरुपयोग नहीं किया जा सकता।

साइड इफेक्ट्स: आम दुष्प्रभावों में मतली, उल्टी, भूख में कमी, मुँह सूखना, कब्ज, थकान, चक्कर आना और नींद में गड़बड़ी शामिल हैं। गंभीर दुष्प्रभावों में हृदय गति और रक्तचाप में वृद्धि, यकृत की क्षति, आत्महत्या के विचार, गंभीर एलर्जी प्रतिक्रियाएँ और प्रियापिज्म शामिल हो सकते हैं। किसी भी गंभीर लक्षण के लिए तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के निर्देशानुसार ही लें। गोली को पूरा निगलें, चबाएं या तोड़ें नहीं। इसे भोजन के साथ या बिना भोजन के लिया जा सकता है, लेकिन भोजन के साथ लेने से पेट की परेशानी कम हो सकती है। इस दवा के साथ शराब का सेवन न करें। अपने डॉक्टर को अन्य सभी दवाओं के बारे में बताएं। नियमित रूप से रक्तचाप, हृदय गति और यकृत समारोह की निगरानी की आवश्यकता हो सकती है। डॉक्टर की सलाह के बिना दवा बंद न करें।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 atomox 18mg tablet Uses & Benefits

  • [{"condition":"Attention-Deficit/Hyperactivity Disorder (ADHD)","description":"This medicine is used to treat ADHD in children, adolescents, and adults.
  • It helps improve attention, reduce impulsivity, and decrease hyperactivity.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Treatment-resistant depression","description":"Sometimes used as an adjunct in treatment-resistant depression, but evidence is limited.","evidence":"Limited"},{"condition":"Anxiety disorders","description":"May be used off-label for certain anxiety disorders, but not first-line.","evidence":"Limited"}]

Primary treatment for: Attention-Deficit/Hyperactivity Disorder (ADHD)

Also treats: Treatment-resistant depression, Anxiety disorders

📋 Drug Information

Generic Name(s)Atomoxetine (18mg)
Brand Nameatomox 18mg tablet
ManufacturerSanity Pharma
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassNEURO CNS
Action ClassSympthatomimmetics-ADHD (Non stimulant)
Route of AdministrationOral
StorageStore at room temperature (15-30°C) away from moisture and heat. Keep in the original container.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine at the same time each day to maintain consistent blood levels.
2
Monitor blood pressure and heart rate regularly, especially during the first few weeks.
3
Watch for mood changes, especially in children and adolescents, and report any suicidal thoughts immediately.
4
Do not stop this medicine abruptly; taper gradually under medical supervision.
5
Inform your doctor if you have liver problems, as dose adjustment may be needed.
6
Take with food if it causes stomach upset.
7
Avoid driving or operating machinery until you know how this medicine affects you.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Inattention and distractibility
This medicine is commonly prescribed for ADHD.
Likely Use
✅
Hyperactivity and impulsivity
This medicine helps reduce these symptoms.
Likely Use
❌
Fever
This medicine is not a fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionAtomoxetine is rapidly absorbed after oral administration, with peak plasma concentrations occurring approximately 1 to 2 hours after dosing. Food does not significantly affect the extent of absorption but may delay the time to peak concentration.
DistributionAtomoxetine is widely distributed in the body. It is highly bound to plasma proteins, primarily albumin.
Protein BindingApproximately 98% bound to plasma proteins.
MetabolismAtomoxetine is extensively metabolized in the liver, primarily by the CYP2D6 enzyme, and to a lesser extent by CYP2C19 and other enzymes. The major oxidative metabolite is 4-hydroxyatomoxetine, which is glucuronidated.
Half-LifeThe elimination half-life of atomoxetine is approximately 5 hours in extensive metabolizers and up to 24 hours in poor metabolizers.
ExcretionAtomoxetine and its metabolites are primarily excreted in the urine (more than 80%) and to a lesser extent in feces.
BioavailabilityThe absolute bioavailability of atomoxetine after oral administration is approximately 63% in extensive metabolizers and higher in poor metabolizers.
Onset of ActionThe full therapeutic effects of this medicine may take 2 to 4 weeks to become apparent, although some improvement may be noticed within the first week.
Peak Plasma Time1 to 2 hours after oral administration.
Duration of ActionThe effects of a single dose last for approximately 24 hours, allowing for once-daily dosing in some patients.

How It Works

Atomoxetine selectively inhibits the presynaptic norepinephrine transporter, leading to increased concentrations of norepinephrine in the synaptic cleft. This enhances noradrenergic neurotransmission in the prefrontal cortex, which is associated with improved attention and impulse control.

Mechanism Steps

1
Selective norepinephrine reuptake inhibition: This medicine binds to the presynaptic norepinephrine transporter and inhibits the reuptake of norepinephrine.
2
Increased norepinephrine in synapse: This leads to higher levels of norepinephrine in the synaptic cleft, enhancing noradrenergic signaling.
3
Enhanced prefrontal cortex function: Improved noradrenergic transmission in the prefrontal cortex helps regulate attention and behavior.

💡 How to Take atomox 18mg tablet

Strength: Atomoxetine 18 mg immediate-release tablet.

1Take this medicine exactly as prescribed by your doctor.
2Swallow the tablet whole with a glass of water.
3Do not crush, chew, or break the tablet.
4You can take it with or without food.
5Take it at the same time each day to maintain consistent levels.
6If you miss a dose, follow the missed dose instructions.
7Do not stop taking this medicine without consulting your doctor.

Dosage Information

Adult DosageThe usual starting dose for adults is 40 mg once daily, which may be increased after a minimum of 3 days to 80 mg daily, given as a single dose or divided into two doses. The maximum recommended daily dose is 100 mg. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosageFor children and adolescents weighing up to 70 kg, the usual starting dose is 0.5 mg/kg daily, which may be increased after a minimum of 3 days to 1.2 mg/kg daily. The maximum daily dose is 1.4 mg/kg or 100 mg, whichever is less. For those weighing over 70 kg, the adult dose applies. Pediatric dosing is not established from available information for children under 6 years. Consult a pediatrician.
Elderly DosageNo specific dose adjustment is recommended for elderly patients, but use with caution due to potential for increased sensitivity. Dose must be individualized by a qualified clinician.
Renal ImpairmentNo dose adjustment is required for mild to moderate renal impairment. Use with caution in severe renal impairment.
Hepatic ImpairmentDose reduction is recommended in patients with hepatic impairment. For moderate hepatic impairment (Child-Pugh B), reduce the dose to 50% of the normal dose. For severe hepatic impairment (Child-Pugh C), reduce to 25% of the normal dose.
Maximum Daily Dose100 mg per day.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With food
Can be taken with or without food
Food does not affect absorption but may reduce stomach upset.
Grapefruit
No specific interaction
Not established from the available information.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of atomox 18mg tablet

✅ Common Side Effects

Nausea (Common (5-10%))
Take with food to reduce nausea. If persistent, consult your doctor.
Decreased appetite (Common (5-10%))
Monitor weight. Encourage small, frequent meals. Consult doctor if significant weight loss occurs.
Dry mouth (Common (5-10%))
Sip water frequently. Use sugar-free gum or lozenges.
Constipation (Common (5-10%))
Increase fiber and fluid intake. Consult doctor if persistent.
Fatigue (Common (5-10%))
Ensure adequate rest. If severe, consult doctor.
Dizziness (Common (5-10%))
Avoid driving or operating machinery until you know how this medicine affects you.
Sleep disturbances (Common (5-10%))
Take the dose earlier in the day if insomnia occurs. Consult doctor if persistent.

🚨 Serious Side Effects

Increased heart rate and blood pressure (Uncommon (0.1-1%))
Regular monitoring of blood pressure and heart rate is advised. Seek medical attention if you experience chest pain or severe headache.
Liver injury (Rare (<0.1%))
Report symptoms like yellowing of skin or eyes, dark urine, or abdominal pain immediately.
Suicidal thoughts (Rare (<0.1%))
Seek immediate help if you experience thoughts of self-harm. Close monitoring is required, especially in children and adolescents.
Severe allergic reactions (Rare (<0.1%))
Seek emergency medical help if you experience swelling of face, lips, tongue, or difficulty breathing.
Priapism (Rare (<0.1%))
Seek immediate medical attention if you have a prolonged and painful erection.

⚠️ Rare Side Effects

Urinary retention
Consult doctor if you have difficulty urinating.
Peripheral edema
Report swelling of hands or feet to your doctor.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
MAOIs Major
Fluoxetine Major
Paroxetine Major
Quinidine Major
Albuterol Moderate
Antihypertensives Moderate
Antacids Minor

🚨 Major Interactions

  • Monoamine oxidase inhibitors (MAOIs)
  • CYP2D6 inhibitors (e.g., fluoxetine, paroxetine, quinidine)

⚡ Moderate Interactions

  • Albuterol (salbutamol)
  • Antihypertensives

🍷 Alcohol Interaction

Alcohol may increase the risk of dizziness, drowsiness, and liver problems. It is advisable to avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to atomoxetine or any component of the formulation","Concurrent use or within 14 days of MAO inhibitors","Narrow-angle glaucoma","Pheochromocytoma","Severe cardiovascular disorders"]

⚠️ Warnings & Precautions

["Increased risk of suicidal thoughts in children and adolescents; monitor closely.","May cause liver injury; report symptoms like jaundice.","May increase heart rate and blood pressure; monitor regularly.","May cause severe allergic reactions; seek immediate help if symptoms occur.","May impair ability to drive or operate machinery; use caution.","Do not stop abruptly; taper under medical supervision."]

🤱 Lactation Safety

Atomoxetine is excreted in human milk. Breastfeeding is not recommended while taking this medicine unless the potential benefit outweighs the risk. Consult your doctor.

💊 Overdose Management

In case of overdose, seek immediate medical attention. Symptoms may include drowsiness, agitation, hyperactivity, and gastrointestinal symptoms. Treatment is supportive and symptomatic. There is no specific antidote.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose to catch up.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not crush, chew, or break the tablet; swallow it whole with water. It can be taken with or without food, but taking it with food may reduce stomach upset. Avoid alcohol while taking this medicine as it can worsen side effects. Inform your doctor about all other medications you are taking, especially MAO inhibitors, albuterol, or blood pressure medicines. Regular monitoring of blood pressure, heart rate, and liver function may be required. Do not stop this medicine abruptly without consulting your doctor. Keep out of reach of children. Store at room temperature away from moisture and heat.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more sensitive to the effects of this medicine. Use with caution and monitor blood pressure and heart rate regularly.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor. The safety of this medicine during pregnancy is not fully established. Your doctor will weigh the benefits and risks.

🏥 Post-Surgery Considerations

Inform your surgeon and anesthesiologist that you are taking this medicine. It may affect blood pressure and heart rate during surgery. Your doctor may advise temporary discontinuation.

🦷 Dental Procedures

Inform your dentist that you are taking this medicine. It may cause dry mouth, which can affect dental health. Maintain good oral hygiene.

💚 Lifestyle Tips for Better Results

🏃
Maintain a structured daily routine to complement medication effects.
🥗
Get regular exercise to help manage ADHD symptoms.
😴
Ensure adequate sleep and practice good sleep hygiene.
💧
Eat a balanced diet and stay hydrated.
🧘
Use reminders and organizational tools to manage tasks.
🌞
Avoid alcohol and recreational drugs.

🏋️ Exercise Considerations

This medicine may increase heart rate and blood pressure. Consult your doctor before starting a new exercise regimen. Stay hydrated during exercise.

🥗 Diet Recommendations

Include protein-rich foods
Limit caffeine intake as it may increase anxiety
Eat regular meals to manage appetite changes
Stay hydrated

💼 Impact on Daily Work & Life

This medicine may improve focus and productivity at work or school. However, it can cause dizziness or fatigue; avoid driving or operating machinery until you know how it affects you. Inform your employer if your job requires such activities.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. If you experience serious side effects or no improvement after several weeks, your doctor may consider adjusting the dose or switching to another medication.

📅 Long-Term Use Effects

Long-term use may require regular monitoring of blood pressure, heart rate, liver function, and growth in children. Some patients may experience weight loss. The medicine is generally safe for extended use under medical supervision. Periodic review of the need for continued therapy is recommended.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Behavioral therapy

Can complement medication for ADHD management.

Evidence: Well-established
Stimulant medications

Alternative first-line treatment for ADHD.

Evidence: Well-established
Lifestyle modifications

Regular exercise, sleep hygiene, and organizational strategies.

Evidence: Supportive

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific interactions with vaccines are known. Continue routine vaccinations as scheduled.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

Carry this medicine in its original packaging with a copy of your prescription. Store at room temperature and avoid extreme heat or moisture. If traveling across time zones, consult your doctor for dose timing adjustments. Keep enough supply for the entire trip and carry it in your hand luggage.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 10-year-old boy with ADHD struggling in school
His parents noticed he was easily distracted and impulsive. After starting this medicine, his teacher reported improved focus and fewer disruptions. It took about 3 weeks to see full effects. He experienced mild appetite loss initially, which improved with small frequent meals.
💡 Lesson: Consistent daily dosing and patience are key, as full benefits may take several weeks.
👤 A 35-year-old professional with adult ADHD
She had difficulty meeting deadlines and staying organized. Her doctor prescribed this medicine. After 4 weeks, she noticed better concentration and reduced procrastination. She monitored her blood pressure regularly and avoided alcohol.
💡 Lesson: Regular monitoring and lifestyle adjustments enhance treatment success.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: It may take 2 to 4 weeks to see full therapeutic effects, although some improvement may be noticed within the first week.

Q: Can I stop taking this medicine suddenly?

A: No, you should not stop abruptly. Consult your doctor for a gradual taper to avoid withdrawal effects.

Q: Is it safe to take during pregnancy?

A: Consult your doctor. Use only if clearly needed, as safety is not fully established.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for atomox 18mg tablet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Atomoxetine is a stimulant.
    Fact: Atomoxetine is a non-stimulant medication and is not classified as a controlled substance.
  • Myth: Atomoxetine works immediately.
    Fact: It may take 2 to 4 weeks to see full therapeutic effects.
  • Myth: Atomoxetine is only for children.
    Fact: It is approved for children, adolescents, and adults with ADHD.
  • Myth: Atomoxetine can be stopped abruptly.
    Fact: It should be tapered gradually under medical supervision to avoid withdrawal effects.

🔄 Alternative Options

Generic Alternatives

  • Atomoxetine 18 mg tablet (generic)

Brand Alternatives

  • Atomox 18mg tablet

📊 Comparison with Similar Medicines

[{"medicine":"Atomoxetine","class":"Selective norepinephrine reuptake inhibitor","controlled_substance":"No","onset":"2-4 weeks","common_side_effects":"Nausea, decreased appetite, fatigue"},{"medicine":"Methylphenidate","class":"Stimulant","controlled_substance":"Yes","onset":"30-60 minutes","common_side_effects":"Insomnia, decreased appetite, headache"},{"medicine":"Amphetamine","class":"Stimulant","controlled_substance":"Yes","onset":"30-60 minutes","common_side_effects":"Insomnia, decreased appetite, dry mouth"}]

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