Medication info
Hwanin Atomoxetine Tablet 25mg (Atomoxetine Hydrochloride)

Hwanin Atomoxetine Tablet 25mg (Atomoxetine Hydrochloride)

Prescription medicationTabletOral
Ingredient · strength
Atomoxetine Hydrochloride›28.57mg / 1 tablet
Manufacturer / importer
Hwanin Pharmaceutical Co., Ltd.
Appearance
White oval film-coated tablet
Packaging
30 tablets/bottle, 100 tablets/bottle
Approval status
Active

MFDS item code 202600375 · Approved 2026.02.10

Summary

Main use
Treatment of attention-deficit/hyperactivity disorder (ADHD) in children aged 6 years and older and adults
Who takes it
Adults · Children
Adult dose
This medicine may be administered orally once daily in the morning, with or without food. Patients who do not achieve a satisfactory clinical response (tolerability or efficacy) with once-daily administration may take the same total daily dose in 2 divided doses, in the morning and late afternoon or early evening. Dosage for adults: Start this medicine at a total daily dose of approximately 40mg. Maintain the initial dose for at least 7 days before gradually increasing the dose according to clinical response and tolerability. The recommended maintenance dose is 80mg. For patients who do not show an adequate response, the dose may be increased to a maximum of 100 mg after 2∼4 weeks. There are no data showing increased efficacy at higher doses. For patients with moderate hepatic impairment (Child-Pugh Class B), reduce the initial and target doses to 50% of the usual dose. For patients with severe hepatic impairment (Child-Pugh Class C), reduce the initial and target doses to 25% of the usual dose. Patients with end-stage renal disease have greater systemic exposure to this medicine than healthy subjects (approximately 65% higher); however, there was no difference when exposure was adjusted for the mg/kg dose. Therefore, patients with ADHD who have end-stage renal disease or mild renal impairment may receive the usual dosage regimen. This medicine may worsen hypertension in patients with end-stage renal disease. Elderly patients: Not applicable. Placebo-controlled studies have not provided useful evidence indicating how long patients with ADHD should be treated with this medicine. However, it is generally agreed that pharmacological treatment of ADHD should continue for an extended period. Nevertheless, physicians who decide to use this medicine for an extended period should periodically reevaluate the benefits of long-term use for each patient. This medicine may be taken on an empty stomach or with food. The safety of single doses exceeding 120mg and total daily doses exceeding 150mg has not been systematically evaluated. For adults receiving strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine), start this medicine at 40mg/day. If symptoms have not improved after 4 weeks and the initial dose is well tolerated, increase the dose to the target dose of 80mg/day. This medicine may be discontinued without dose reduction.
Child dose
Children weighing up to 70 kg: Start this medicine at a total daily dose of approximately 0.5 mg/kg. Maintain the initial dose for at least 7 days before gradually increasing the dose according to clinical response and tolerability. The recommended maintenance dose is approximately 1.2mg/kg/day. (Depending on the patient's weight and the strength of this medicine used) No additional benefit has been demonstrated at doses higher than 1.2 mg/kg/day. The total daily dose in children should not exceed 1.4mg/kg or 100mg. Children weighing more than 70 kg: Start this medicine at a total daily dose of approximately 40mg. Maintain the initial dose for at least 7 days before gradually increasing the dose according to clinical response and tolerability. The recommended maintenance dose is 80mg. For patients who do not show an adequate response, the dose may be increased to a maximum of 100 mg after 2∼4 weeks. There are no data showing increased efficacy at higher doses. Children under 6 years of age: The safety and efficacy of this medicine have not been established. Therefore, this medicine should not be used in children under 6 years of age. For children weighing up to 70 kg who are receiving strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine), start this medicine at 0.5mg/kg/day. If symptoms have not improved after 4 weeks and the initial dose is well tolerated, increase the dose to the target dose of 1.2mg/kg/day. For children weighing 70 kg or more who are receiving strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine), start this medicine at 40mg/day. If symptoms have not improved after 4 weeks and the initial dose is well tolerated, increase the dose to the target dose of 80mg/day.

Ingredients

Manufacturer
Hwanin Pharmaceutical Co., Ltd.

Efficacy & effects

Treatment of attention-deficit/hyperactivity disorder (ADHD) in children aged 6 years and older and adults

  • Attention Deficit
  • Hyperactivity Disorder
View approved original text

This medication is used to treat Attention Deficit Hyperactivity Disorder (ADHD) in children aged 6 years and older and adults. Diagnosis should be based on DSM-IV or ICD-10 criteria and used in conjunction with a comprehensive treatment program. This medication helps improve attention and reduce hyperactive behavior in patients. Therefore, it is effectively used to improve symptoms of ADHD.

How to take

Adult dose

This medicine may be administered orally once daily in the morning, with or without food. Patients who do not achieve a satisfactory clinical response (tolerability or efficacy) with once-daily administration may take the same total daily dose in 2 divided doses, in the morning and late afternoon or early evening. Dosage for adults: Start this medicine at a total daily dose of approximately 40mg. Maintain the initial dose for at least 7 days before gradually increasing the dose according to clinical response and tolerability. The recommended maintenance dose is 80mg. For patients who do not show an adequate response, the dose may be increased to a maximum of 100 mg after 2∼4 weeks. There are no data showing increased efficacy at higher doses. For patients with moderate hepatic impairment (Child-Pugh Class B), reduce the initial and target doses to 50% of the usual dose. For patients with severe hepatic impairment (Child-Pugh Class C), reduce the initial and target doses to 25% of the usual dose. Patients with end-stage renal disease have greater systemic exposure to this medicine than healthy subjects (approximately 65% higher); however, there was no difference when exposure was adjusted for the mg/kg dose. Therefore, patients with ADHD who have end-stage renal disease or mild renal impairment may receive the usual dosage regimen. This medicine may worsen hypertension in patients with end-stage renal disease. Elderly patients: Not applicable. Placebo-controlled studies have not provided useful evidence indicating how long patients with ADHD should be treated with this medicine. However, it is generally agreed that pharmacological treatment of ADHD should continue for an extended period. Nevertheless, physicians who decide to use this medicine for an extended period should periodically reevaluate the benefits of long-term use for each patient. This medicine may be taken on an empty stomach or with food. The safety of single doses exceeding 120mg and total daily doses exceeding 150mg has not been systematically evaluated. For adults receiving strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine), start this medicine at 40mg/day. If symptoms have not improved after 4 weeks and the initial dose is well tolerated, increase the dose to the target dose of 80mg/day. This medicine may be discontinued without dose reduction.

Child dose

Children weighing up to 70 kg: Start this medicine at a total daily dose of approximately 0.5 mg/kg. Maintain the initial dose for at least 7 days before gradually increasing the dose according to clinical response and tolerability. The recommended maintenance dose is approximately 1.2mg/kg/day. (Depending on the patient's weight and the strength of this medicine used) No additional benefit has been demonstrated at doses higher than 1.2 mg/kg/day. The total daily dose in children should not exceed 1.4mg/kg or 100mg. Children weighing more than 70 kg: Start this medicine at a total daily dose of approximately 40mg. Maintain the initial dose for at least 7 days before gradually increasing the dose according to clinical response and tolerability. The recommended maintenance dose is 80mg. For patients who do not show an adequate response, the dose may be increased to a maximum of 100 mg after 2∼4 weeks. There are no data showing increased efficacy at higher doses. Children under 6 years of age: The safety and efficacy of this medicine have not been established. Therefore, this medicine should not be used in children under 6 years of age. For children weighing up to 70 kg who are receiving strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine), start this medicine at 0.5mg/kg/day. If symptoms have not improved after 4 weeks and the initial dose is well tolerated, increase the dose to the target dose of 1.2mg/kg/day. For children weighing 70 kg or more who are receiving strong CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine), start this medicine at 40mg/day. If symptoms have not improved after 4 weeks and the initial dose is well tolerated, increase the dose to the target dose of 80mg/day.

Precautions

This medication is a treatment for Attention Deficit Hyperactivity Disorder (ADHD). During treatment, suicidal behavior may occur, so it is particularly important to closely monitor children and adolescents for any suicidal thoughts or actions. Additionally, aggressive or emotionally unstable behavior may occur, so if such changes arise, immediate consultation with healthcare professionals is necessary. It can cause severe liver damage, so if jaundice or symptoms of liver dysfunction (e.g., yellowing of skin or eyes, darkened urine, abdominal pain) appear, stop the medication immediately and visit a hospital. This medication should not be used in conjunction with certain drugs, especially MAO inhibitors, as it can cause serious side effects. It is crucial to inform healthcare professionals about any medications being taken. It should not be used in patients with glaucoma, severe cardiovascular diseases, or pheochromocytoma. Allergic reactions may rarely occur; if symptoms such as rash, hives, or difficulty breathing arise, stop use immediately. Patients with heart issues or high blood pressure should regularly monitor their heart rate and blood pressure before and after taking this medication, and consult healthcare professionals if abnormalities occur. This medication is not used in children under 6 years old as its safety and efficacy have not been confirmed. Side effects such as drowsiness, dizziness, decreased appetite, indigestion, headache may occur, so caution is needed when driving or operating machinery. Pregnant or breastfeeding women should consult a doctor before taking this medication, and it is recommended not to use it while breastfeeding. Long-term use may lead to growth delays, so monitor growth and development regularly. Overdose may cause gastrointestinal disturbances, drowsiness, tremors, and abnormal behavior, so the dosage must be strictly adhered to, and in case of overdose, visit a hospital immediately. Before taking this medication, consult with a doctor or pharmacist to inform them about personal health status and other medications being taken, and follow their instructions.

Side effects

  • suicidal attempt
  • suicidal ideation
  • aggression
  • defiant behavior
  • anger
  • emotional instability
  • liver damage
  • increased liver enzymes
  • jaundice
  • itching
Show 92 more
  • angioedema
  • urticaria
  • anaphylactic reaction
  • decreased appetite
  • growth delay
  • hypersensitivity
  • drowsiness
  • nausea
  • vomiting
  • abdominal pain
  • constipation
  • fatigue
  • abnormal feeling
  • headache
  • seizures
  • dyspepsia
  • dizziness
  • rash
  • mood disturbance
  • insomnia
  • depression
  • tremors
  • abrasions
  • middle insomnia
  • conjunctivitis
  • fainting
  • waking up early in the morning
  • mydriasis
  • sedation
  • anxiety
  • chest pain
  • erectile dysfunction
  • irritability
  • palpitations
  • urinary retention
  • dry mouth
  • chills
  • neuroexcitability
  • polydipsia
  • weight loss
  • sensory disturbances
  • abnormal dreams
  • decreased libido
  • sleep disturbance
  • delayed urination
  • urination difficulty
  • dysmenorrhea
  • delayed ejaculation
  • sweating
  • facial flushing
  • vision reduction
  • increased intraocular pressure
  • drowning
  • headache
  • lack of efficacy
  • tic
  • nocturnal enuresis
  • nightmares
  • orthostatic hypotension
  • sore throat
  • pneumonia
  • psychomotor agitation
  • traffic accident
  • sinusitis
  • sleep disorder
  • tic
  • tremor
  • upper respiratory tract infection
  • chickenpox
  • weight loss
  • irritability
  • arthritis
  • nasopharyngitis
  • increased appetite
  • stuttering
  • emotional disorder
  • belching
  • fatigue
  • sedation
  • hypersomnia
  • sensory impairment
  • abnormal sensation
  • psychosis
  • agitation
  • suicidal-related events
  • hostility
  • seizures
  • sweating
  • male pelvic pain
  • urinary hesitance
  • priapism
  • male genital pain

Not everyone experiences these, and they can vary from person to person.

Storage

This medication should be stored in a tightly sealed container to prevent exposure to air or moisture, and it is best kept in a cool place at room temperature below 25 degrees Celsius. Proper storage can help maintain the efficacy of the medication for a longer period.

Appearance and packaging

Appearance

White oval film-coated tablet

Package unit

30 tablets/bottle, 100 tablets/bottle

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

No questions yet.

For anything that needs medical judgment, consult a doctor or pharmacist.

Related searches

Search tags

Suggested searches

This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.