Medication info

Pirofen Tablets

OTC medicationApproval withdrawn
Ingredient · strength
Chlorzoxazone›Strength being verifiedAcetaminophen›Strength being verified
Manufacturer / importer
정우신약(주)
Appearance
Pink rectangular tablet
Packaging
10 tablets/PTP
Approval status
Approval withdrawn

MFDS item code 200300376 · Notified 2003.02.25

This product's status changed to Approval withdrawn on 2023.07.21. It may no longer be sold, so consult a doctor or pharmacist before taking it.

Summary

Main use
Relief of muscle tension associated with conditions such as neuralgia and myalgia.
Who uses it
Adults
Adult dosage
Take 2 tablets per dose, up to 4 times a day. Avoid taking on an empty stomach. Adjust dosage according to age and symptoms.

Ingredients

Manufacturer
정우신약(주)

Efficacy & effects

Relief of muscle tension associated with conditions such as neuralgia and myalgia.

  • Neuralgia
  • myalgia
  • arthralgia
  • lumbago
  • sprain pain
  • shoulder pain
  • muscle cramps
  • muscle rigidity
View approved original text

This medication is used for various conditions accompanied by abnormal muscle tension such as typical pains like neuralgia, myalgia, arthralgia, lumbago, as well as pain due to sprains, shoulder stiffness and pain, muscle cramps, and muscle rigidity.

Dosage and Administration

Adult dosage

Take 2 tablets per dose, up to 4 times a day. Avoid taking on an empty stomach. Adjust dosage according to age and symptoms.

Precautions

This medication should be discussed with a doctor or pharmacist if you regularly consume alcohol above three glasses a day, as it may lead to liver damage. This drug contains acetaminophen, so be cautious as taking it together with other acetaminophen-containing products can exceed the maximum daily dosage and cause liver damage. Individuals allergic to chlorzoxazone or acetaminophen, or who have had hypersensitivity reactions such as rashes, itching, or swelling after taking this medication, as well as those who have experienced asthma symptoms from this medication or other cold medications and antipyretic analgesics should not take it. If symptoms such as hives, swelling, chest tightness, pale face, cold sweat, or shortness of breath occur during use, immediately stop taking it and consult a doctor or pharmacist. Care should be taken as taking barbiturates, tricyclic antidepressants, or alcohol may slow down the breakdown of acetaminophen and burden the liver. Those with severe liver or kidney diseases, or history of allergies, should use this medication cautiously. Discontinue use if hypersensitivity reactions like hives, redness, or itching occur, as there may be rare but serious allergic reactions such as skin rash, bleeding, color change in urine, angioedema, or anaphylaxis. If liver dysfunction symptoms appear, stop taking it immediately, and be aware that gastrointestinal disturbances, gastric bleeding, drowsiness, dizziness, headache, malaise, and excessive excitement may also occur. Pregnant women or those who may become pregnant should only take this medication when the therapeutic benefits outweigh the risks, as its safety has not been established. Taking it with alcohol or central nervous system depressants may interact and worsen side effects, so precautions are necessary. Keep out of reach of children, and store it in a cool, dry place away from direct sunlight. Additionally, to prevent misuse and maintain quality, do not transfer to another container.

Side effects and when to seek care immediately

Serious side effects

  • Hives, severe swelling (edema), chest tightness, difficulty breathing, cold sweat, pallor
  • Severe rash with fever, blisters, skin peeling, oral/eye mucosal pain
  • Asthma attacks
  • Liver abnormalities (including jaundice symptoms)
  • Severe allergic reactions (angioedema, anaphylaxis)

Mild side effects

  • Itching
  • redness
  • headache
  • drowsiness
  • dizziness
  • malaise
  • excessive excitement
  • gastrointestinal disturbances

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

Storage

Store this medication in a tightly closed container to protect it from air and moisture. It is recommended to maintain a storage temperature between 1 degree and 30 degrees at room temperature.

Appearance and packaging

Appearance

Pink rectangular tablet

Package unit

10 tablets/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

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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.