Myofexon Tablet (Eperisone Hydrochloride)
Eperisone Hydrochloride 50mg
Prescription medication
Boryung Biopharma Co., Ltd.
MFDS item code 202003373 · Approved 2020.05.09
This product's status changed to Expired on 2025.05.09. It may no longer be sold, so consult a doctor or pharmacist before taking it.
Treatment of musculoskeletal pain-related muscle spasms and neurologic spastic paralysis
This medication is used to relieve pain associated with painful muscle spasms caused by musculoskeletal disorders, such as cervical radiculopathy, periarthritis of the shoulder, and low back pain. It also effectively acts on symptoms of spastic paralysis that appear in neurological disorders, such as sequelae of cerebrovascular disorders, spastic spinal paralysis, head trauma, cerebral palsy, and spinal-related diseases. This drug helps reduce muscle stiffness and pain, improving the patient's motor function and enhancing comfort in daily life. Therefore, it is widely used in the treatment of various diseases associated with muscle stiffness.
Eperisone Hydrochloride 50 mg is orally administered three times a day after meals. Adjust dosage appropriately according to age and symptoms.
This drug should not be used in certain patients. Patients who have an allergy to this drug or have severe muscle weakness, and those with a genetic disorder that prevents lactose digestion should not take this medication. Caution is necessary when using this medication in patients with a history of drug allergies or weakened liver function. Additionally, this drug contains a pigment called Yellow No. 4, and caution is warranted for individuals who are allergic to this component. While taking this medication, severe allergic reactions such as shock may rarely occur, so symptoms should be closely monitored. Liver function test values may increase, and kidney function may become impaired, so regular checks are necessary. Neurological symptoms such as anemia, skin rash, itching, insomnia, drowsiness, headaches, and tingling in the hands and feet may appear. Gastrointestinal issues may include nausea, vomiting, loss of appetite, abdominal pain, diarrhea, and constipation, requiring caution. Urinary issues may arise, leading to problems with urination, and generalized feelings of weakness or dizziness may also be experienced. Rarely, flushing of the face, sweating, and swelling may occur. This drug can cause serious skin conditions such as Stevens-Johnson syndrome, so if symptoms such as rashes, blisters, itching, eye redness, or oral inflammation appear, usage should be immediately discontinued, and medical attention should be sought. Drowsiness or decreased concentration may occur during treatment, so it is advisable to avoid driving or operating dangerous machinery. If severe weakness or staggering occurs, dosage should be reduced or discontinued. Caution should be observed if taken with other muscle relaxants, as visual control problems may arise; always consult with a physician when taking this drug with others. Women who are pregnant or may become pregnant should take this drug only if the therapeutic benefits outweigh the risks, as its safety is not confirmed. Nursing mothers should avoid taking this medication; if it is necessary, breastfeeding should be discontinued. Safety has not been fully established in children, so caution is needed for use. Elderly patients may experience decreased bodily function, so careful attention is required, including dosage adjustments.
Shock, anaphylactic reaction (hives, severe swelling, chest tightness, difficulty breathing), angioedema (severe swelling), worsening liver function (possible liver abnormalities, jaundice symptoms), toxic epidermal necrolysis and mucocutaneous-ocular syndrome (severe rash, blisters, skin peeling, pain in oral/ocular mucosa accompanied by fever)
Not everyone experiences these, and they can vary from person to person.
This drug should be stored in a tightly sealed container to prevent air and moisture from entering. The most suitable storage temperature is between 1 and 30 degrees Celsius at room temperature.
White round tablet
Bottle - 30 tablets/bottle, Bottle - 300 tablets/bottle
Even with the same ingredient, strength, dosage form and how it is taken can differ.
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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.
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For anything that needs medical judgment, consult a doctor or pharmacist.
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.