Medication info
Myfen Ibuprofen 400 Soft Capsule (Ibuprofen)

Myfen Ibuprofen 400 Soft Capsule (Ibuprofen)

OTC medicationSoft capsule경구
Ingredient · strength
Ibuprofen›400mg / 1 capsule
Manufacturer / importer
코오롱제약(주)
Appearance
A blue transparent oval soft capsule containing a colorless to light blue liquid.
Packaging
10 capsules/PTP
Approval status
Active

MFDS item code 202401488 · Notified 2024.06.20

Summary

Main use
Relief of pain related to cold and arthritis (rheumatoid arthritis, osteoarthritis)
Who takes it
Adults · Children
Adult dose
1. Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, soft tissue injuries, non-joint rheumatic diseases, acute gout, psoriatic arthritis: Administer ibuprofen 200-600 mg per dose, orally 3-4 times a day, with a maximum daily dose of 3200 mg. 3. Mild and moderate pain, cold: Administer 200-400 mg per dose, orally 3-4 times a day, adjusting based on age and symptoms. 4. Migraine: Administer per dose of
Child dose
2. Inflammatory rheumatoid arthritis: Administer 30-40 mg per day per kg of body weight divided into 3-4 doses orally.

Ingredients

Manufacturer
코오롱제약(주)

Efficacy & effects

Relief of pain related to cold and arthritis (rheumatoid arthritis, osteoarthritis)

  • Fever
  • pain
  • low back pain
  • menstrual pain
  • rheumatoid arthritis
  • inflammatory rheumatoid arthritis
  • osteoarthritis
  • pain
  • headache
  • migraine
  • toothache
  • muscle pain
View approved original text

This medication is effective for reducing fever and pain due to colds, menstrual pain, rheumatoid arthritis, osteoarthritis, and postoperative pain relief. Additionally, it is used for various pains including headache, migraine, toothache, muscle pain, and neuralgia. It also helps with inflammatory conditions such as ankylosing spondylitis, acute gout, and psoriatic arthritis, contributing to the improvement of inflammation around soft tissue injuries or joints. Thus, this medication is widely used for the treatment of various types of pain and inflammatory diseases.

How to take

Adult dose

1. Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, soft tissue injuries, non-joint rheumatic diseases, acute gout, psoriatic arthritis: Administer ibuprofen 200-600 mg per dose, orally 3-4 times a day, with a maximum daily dose of 3200 mg. 3. Mild and moderate pain, cold: Administer 200-400 mg per dose, orally 3-4 times a day, adjusting based on age and symptoms. 4. Migraine: Administer per dose of

Child dose

2. Inflammatory rheumatoid arthritis: Administer 30-40 mg per day per kg of body weight divided into 3-4 doses orally.

Precautions

This drug may cause a risk of gastrointestinal bleeding in individuals who regularly consume more than three drinks a day, so it is essential to consult with a doctor or pharmacist. Those with cardiovascular diseases or risk factors should be cautious as prolonged use of this drug may lead to serious cardiovascular problems such as myocardial infarction or stroke. This drug can cause potentially fatal gastrointestinal side effects like gastrointestinal bleeding, ulcers, or perforations, so elderly patients or those on long-term medication should closely monitor for any unusual symptoms while taking this drug. Patients with a history of gastrointestinal ulcers, bleeding, severe blood disorders, liver impairment, kidney impairment, heart failure, severe hypertension, or those allergic to this drug's ingredients should avoid its use. Individuals with a history of bronchial asthma or hypersensitivity to other anti-inflammatory analgesics like aspirin should also refrain from using this drug. In late pregnancy, this drug should not be taken as it may prematurely close the ductus arteriosus in the fetus. Avoid exceeding the recommended dosage, and it is safer not to use it in combination with other anti-inflammatory analgesics. In breastfeeding, this drug may pass into breast milk and harm the infant, so it's necessary to consult with a specialist before use. If any adverse reactions such as dizziness, rash, dyspnea, or signs of gastrointestinal bleeding occur while taking this drug, discontinue use immediately and consult with a medical professional. For long-term use, it is essential to undergo regular blood tests and functional tests for the liver and kidneys to check for abnormalities. This drug may exacerbate hypertension, so patients with high blood pressure should regularly check their blood pressure before and after use. In cases of overdose, serious symptoms such as dizziness, vomiting, liver function abnormalities, or renal failure may occur; therefore, it is crucial to adhere strictly to the recommended dose. During pregnancy, particularly after 20 weeks, this drug can affect fetal kidney function, so it should be used only minimally and for a short duration if necessary, with ultrasound monitoring of amniotic fluid status. Keep this drug out of the reach of children and store it tightly closed in its original container.

Side effects and when to seek care immediately

Serious side effects

Hives, severe swelling, chest tightness, difficulty breathing, cold sweat, paleness, severe rash with high fever, blisters, skin peeling, mucosal pain in the mouth/eyes, shortness of breath or difficulty breathing, asthma attack, respiratory abnormalities with cough and fever, jaundice (yellowing of skin or eyes), extreme lethargy, sudden and severe headache, thunderclap headache, seizures, confusion, vision changes, paralysis, urination issues

Mild side effects

  • Nausea
  • vomiting
  • abdominal pain
  • indigestion
  • diarrhea
  • headache
  • dizziness
  • drowsiness
  • rash
  • itching
Show 22 more
  • blood pressure changes
  • palpitations
  • fatigue
  • fever
  • nasal bleeding
  • swelling
  • periorbital edema
  • facial swelling
  • stomatitis
  • oral ulcers
  • constipation
  • black stool
  • bloody stool
  • loss of appetite
  • thirst
  • upper abdominal pain
  • hearing loss
  • tinnitus
  • dysgeusia
  • vertigo
  • depression
  • insomnia

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

Interactions

Drug interactions

Do not take this medication with other non-steroidal anti-inflammatory drugs (NSAIDs). Consult with a doctor or pharmacist when taking it in combination with ACE inhibitors, lithium, furosemide and thiazide diuretics, methotrexate, coumarin anticoagulants (such as warfarin), or selective serotonin reuptake inhibitors.

Storage

This drug may be sensitive to air or moisture, so it must be stored in a tightly sealed container. A storage temperature between 1 and 30 degrees Celsius is recommended. This helps to maintain the drug's effectiveness for a longer period.

Appearance and packaging

Appearance

A blue transparent oval soft capsule containing a colorless to light blue liquid.

Package unit

10 capsules/PTP

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

  • QCan I take it twice when I have a migraine?

    For migraine, adults should take 200-400 mg, and it should not exceed 400 mg within 24 hours. If headaches occur frequently or are unusually severe, it is better to seek medical attention rather than increasing the dosage.

    Answers 1 · 2026.09.14

  • QIs it okay to take this for menstrual cramps?

    Yes, menstrual pain is included in the main effects of this medication. For mild pain, adults are advised to take 200-400 mg three to four times a day, and the dosage should be adjusted according to age and symptoms, so please consult a pharmacist to determine the appropriate amount.

    Answers 1 · 2026.09.14

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

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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.