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Theophylline

Theophylline is a drug, a PDE inhibitor, that is widely used in pharmacotherapy.

Chemical formulas of the drug are :

3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione
1,3-dimethylxanthine
and C7H8N4O2

It has molecular weight of 180.16.

The main actions of theophylline are :

relaxation of bronchial smooth muscle[?]
positive inotropic effect
positive chronotropic effect
lowers blood pressure
increases renal blood flow
some anti-inflammatory effect

The main therapeutic uses of theophylline are :

chronic obstructive diseases of the airways
- COPD
- bronchial asthma

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