くすりのしおり

Internal
Revised: 4/2007

The information on this sheet is based on approvals granted by the Japanese regulatory authority. Approval details may vary by country. Medicines have adverse reactions (risks) as well as efficacies (benefits). It is important to minimize adverse reactions and maximize efficacy. To obtain a better therapeutic response, patients should understand their medication and cooperate with the treatment.
Brand name :
UNIPHYL LA tablets 100mg
 Active ingredient:
Theophylline
 Dosage form:
White sustained-release preparation, diameter: 6.4 mm, thickness: 2.9 mm
 Print on wrapping:
ユニフィルLA錠100mg, PF U100 Otsuka 100mg

Effects of this medicine

This medicine inhibits the release of bronchoconstriction factors and enhances the contractile function of the diaphragm, thus providing antiasthmatic effects (dilating bronchi to relieve coughing, breathing difficulty, etc.).
It is usually used in the treatment of bronchial asthma, chronic bronchitis and pulmonary emphysema.

Before using this medicine, be sure to tell your doctor and pharmacist

  • If you have previously experienced any allergic reactions (itch, rash, etc.) to any medicines.
    If you have epilepsy, hyperthyroidism, acute nephritis, congestive heart failure or hepatic disorder.
  • If you are pregnant or breastfeeding.
  • If you are taking any other medicinal products. (Some medicines may interact to enhance or diminish medicinal effects. Beware of over-the-counter medicines and dietary supplements as well as other prescription medicines.)

Dosing schedule (How to take this medicine)

  • Your dosing schedule prescribed by your doctor is ((        to be written by a healthcare professional))
  • In general, for adults, take 4 tablets (400 mg of active ingredient) at a time once daily after the evening meal. The dosage may be adjusted according to your disease, age or symptoms. Strictly follow the instructions of your doctor and pharmacist.
  • Take this medicine with water and swallow it without chewing because it is a sustained-release preparation.
  • If the patient is a child, caregivers should observe conditions of the child. If you notice that the patient develops fever or any abnormalities, consult with your doctor or pharmacist immediately.
  • If you miss a dose and remember it before going to bed, take the dose as soon as possible. However, if you take this medicine on an empty stomach, it may cause stomach irritation. If you do not remember that you missed a dose until later (such as after getting up the following morning), skip the missed dose and follow your regular dosing schedule. You should never take two doses at one time.
  • If you accidentally take more than your prescribed dose, consult with your doctor or pharmacist.
  • Do not stop taking this medicine unless your doctor instructs you to do so.

Precautions while taking this medicine

  • This medicine may cause adverse effects if you drink large amounts of beverages containing high levels of caffeine (coffee, black tea, etc.).
  • Foods that contain hypericum perforatum (Saint John's wort) may affect the therapeutic effect of this medicine.
  • Smoking and quitting smoking may affect the therapeutic effect of this medicine.
  • You may see a white substance derived from this medicine in your stool. However, this will not affect the therapeutic effect of the medicine because it is a residue of non-active ingredients of the medicine.

Possible adverse reactions to this medicine

The most commonly reported adverse reactions include rash, headache, dizziness, tremor, insomnia, palpitation, tachycardia, nausea/vomiting, loss of appetite, diarrhea, abdominal pain, dyspepsia (heartburn, etc.), enlarged feeling of abdomen, frequent urination and numbness (around the mouth and tongue). If any of these symptoms occur, consult with your doctor or pharmacist.
The symptoms described below are rarely seen as initial symptoms of the adverse reactions indicated in brackets. If any of these symptoms occur, stop taking this medicine and see your doctor immediately.
  • Sudden muscle contraction, decreased consciousness, language disorder  [convulsion, consciousness disorder, acute encephalopathy]
  • Muscle pain in limbs, weakness, reddish brown urine  [rhabdomyolysis]
  • Abdominal pain, hematemesis, black stool  [gastrointestinal hemorrhage]
  • Breathing difficulty, hives, cold sweat  [anaphylactoid shock]
  • General malaise, loss of appetite, yellowing in skin and mucosa  [hepatic dysfunction, jaundice]
The above symptoms do not describe all the adverse reactions to this medicine. Consult with your doctor or pharmacist if you notice any symptoms of concern other than those listed above.

Storage conditions and other information

  • Keep out of the reach of children. Store away from direct sunlight, heat and moisture.
  • Discard the remainder. Do not store them. Ask the pharmacist how to discard them.

For healthcare professional use only : Day Month Year

For further information, talk to your doctor or pharmacist.

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