Dophylin 400mg Tablet

Dophylin

DESCRIPTION

Dophylin (Doxophylline) is a novel bronchodilator. It structurally differs from Theophylline due to the presence of a dioxolane group in position 7. Doxophylline selectively inhibits phosphodiesterase-4 thereby relaxes bronchial smooth muscle. However, differently from Theophylline, Doxophylline appears to have decreased affinities toward adenosine A1 and A2 receptors, which may account for the better safety profile of the drug. Doxophylline is reported to inhibit platelet activating factor (PAF) and generation of leukotriene production.

COMPOSITION

Each film-coated tablet contains Doxophylline INN 400 mg.

INDICATION

Dophylin (Doxophylline) is used to treat asthma, COPD and bronchospasm.

DOSAGE AND ADMINISTRATION

Adults : 1 tablet daily at night. On the basis of clinical response the dose may be increased to 1 tablet twice daily.

Children (above 6 years of age) : 6 mg/kg twice daily.

OR AS DIRECTED BY THE PHYSICIAN.

SIDE EFFECT

Doxophylline rarely causes serious side effects, however possible side effect are similar for taking excess amount of caffeine. These include: nausea, vomiting, headaches, upset stomach and heartburn.

CONTRAINDICATION

Doxophylline is contraindicated in acute myocardial infarction. It is also contraindicated in patients with hypotension, in lactating women & patients who have shown hypersensitivity to its components.

PRECAUTION

The half-life of xanthine derivatives is influenced by a number of known variables. It may be prolonged in patients with liver disease, in patients with congestive heart failure and in those patients taking certain other drugs like erythromycin, troleandomycin, lincomycin, allopurinol, cimetidine, propanolol and anti-flu vaccine. In these cases, a lower dose of Doxophylline may be needed. Phenytoin, other anticonvulsants and smoking may cause an increase in clearance with a shorter mean half-life. In these cases higher doses of Doxophylline may be needed.

USE IN PREGNANCY AND LACTATION

Animal reproduction studies indicate that, Doxophylline does not cause fetal harm when administered to pregnant animals or can not affect reproduction capacity. However, since there is limited experience in human during pregnancy, xanthines should be given to pregnant women only if clearly needed.

Doxophylline is contraindicated in nursing mothers.

DRUG INTERACTION

Doxophylline should not be administered together with other xanthine derivatives. Toxic synergism with ephedrine has been documented for xanthines. Like other xanthines, concomitant therapy with troleandomycin, lincomycin, clindamycin, allopurinol, cimetidine, ranitidine, propranolol and anti-flu vaccine may decrease the hepatic clearance of xanthines causing an increase in blood levels. No evidence of a relationship between Doxophylline serum concentrations and toxic events have been reported.

SUPPLY

Each box contains 310 tablets in Alu-PVDC blister pack.