Quibron-T/Sr 300Mg Tablets 100S

Anhydrous Theophylline

Used For


Theophylline works by opening the airways in your lungs. It does this by relaxing the muscles and decreasing the response to substances that cause your airways to constrict. This makes it easier for you to breathe.


Anhydrous Theophylline

Side Effects

Hypersensitivity , Hypokalaemia, hyperglycaemia, electrolyte imbalance , Agitation, restlessness, irritability, nervousness , Headache, insomnia, tremor, convulsions , Heart rate increased, heart rate irregular, palpitations, arrhythmia, ventricular , arrhythmia, tachycardia, sinus tachycardia, supraventricular tachycardia, atrial tachycardia and atria flutter , Hypotension, shock , Nausea, vomiting, diarrhoea, gastrointestinal disorder including gastrointestinal haemorrhage, abdominal pain, haematemesis.

Drug Interactions

Alcohol , Allopurinol , Aminoglutethimide , Barbiturates , Diazepam , Cimetidine , Disulfiram , Erythromycin , Estrogen , Fluvoxamine , Formoterol , Halothane , Imipenem , Isoniazid , Lithium , Macrolides (josamycin,spiramycin) Methotrexate (MTX) , Mexiletine , Moricizine , Pentoxifylline , Phenobarbital , Phenytoin ,Primidone , Propafenone , Propranolol , Rifampin , Sulfinpyrazone , Tacrine , Thiabendazole , Ticlopidine, Troleandomycin , Verapamil , Zileuton


When not to Use

It is contraindicated : Hypersensitivity to the active substance or to any of the inactive ingredients , Recent myocardial infarction Acute , tachyarrhythmia , Children under 6 months of age.


Theophylline should be used with caution and only if absolutely necessary in the following cases: Unstable angina , Patients at risk of tachyarrhythmia , Severe hypertension , Hypertrophic obstructive cardiomyopathy , Hyperthyroidism